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Engine Bore, Stroke, Rod Length, Ratio Information

[Acura] [Alfa Romeo] [AMC - Jeep - Rambler] [Aston Martin] [Audi] [Bentley] [BMW] [Buick] [Cadillac] [Caterpiller] [Chevy] [Chrysler] [Cummins] [Ferrari] [Fiat] [Ford - Edsel - Lincoln - Mercury] [Geo] [Honda] [Hyundai] [Infinity] [Isuzu] [Jaguar] [Kia] [Lamborghini] [Lexus] [Lotus] [Maserati] [Mazda] [Mercedes] [Mitsubishi] [Nissan] [Olds] [Packard] [Pontiac] [Porsche] [Saab] [Saturn] [Studebaker] [Subaru] [Suzuki] [Toyota] [Volvo] [VW]

Motorcycle - ATV - Snowmobile - Etc.
[Arctic Cat] [BMW] [Ducati] [Harley-Davidson] [Honda] [Kawasaki] [KTM] [MAC] [Polaris] [Sea-Doo] [Ski-Doo] [Suzuki] [Triumph] [Yamaha]
 

Common V8 Bore Center Distances

The data below reflects the spacing of cylinder bores in the engine block cylinder bank. Motors in the same table row generally have a common origin and similar development. In some cases, crankshaft interchange may be possible among motors in the same row; major machining may be necessary.
    This is also a useful indicator of potential intake manifold adaptation, not only among motors in the same row, but (with more extensive modification) between motors with very similar bore center distances. E.g.: Chrysler B/RB at 4.80" and Buick BB at 4.75" are very close.
    Column 2 ("Ports") indicates the intake port layout pattern. "00-00" represents 2 pairs of ports on each cylinder bank, "0-0-0-0" is equally-spaced individual ports, and "0-00-0" is unique to early Buicks (resembles common exhaust port layout).
Motor Ports Year ID Displacement Bore Ctr.
Ford "Modular" V8 0-0-0-0 1991-*   4.6, 5.4 3.9370"
Dodge hemi & poly 0-0-0-0 1953-58   241, 259, 270, 315, 325" 4.1875"
Buick 0-00-0 1962   215" 4.240"
00-00 1965-70   300, 340, 350"
Oldsmobile, Pontiac 00-00 1962-?   215"
DeSoto hemi 0-0-0-0 1952-57   276, 291, 330, 341, 345" 4.3125"
Ford 0-0-0-0 1962-* 335, M 221, 260, 289, 302, 351, 400" 4.380"
Chevrolet 00-00 1955-* SB 265, 283, 302, 327, 350, 400" 4.400"
Plymouth 0-0-0-0 1956-* poly A 277, 301, 303, 318, 326" 4.460"
00-00 1964-* wedge LA 273, 318, 340, 360"
Chrysler hemi & poly 0-0-0-0 1951-58   301, 331, 354, 392" 4.5625"
Pontiac 00-00 1955   316, 326, 347, 350, 370, 389, 400, 421, 428, 455" 4.620"
Oldsmobile 00-00 1964-*   330, 350, 400, 403, 425, 455" 4.625"
Ford 0-0-0-0 1958-71 FE 332, 352, 390, 406, 427, 428" 4.630"
AMC 00-00 1966-*   290, 304, 343, 360, 390, 401" 4.750"
Buick 00-00 1967-* BB 400, 430, 455" 4.750"
Chrysler 00-00 1958-78 wedge B/RB 350, 361, 383, 400, 413, 426, 440" 4.800"
0-0-0-0 1964-* hemi RB 426"
Chevrolet 00-00 1958-* W & BB 348, 366, 396, 402, 409, 427, 454" 4.840"
Ford 0-0-0-0 1968-* 385, FF 370, 385, 429, 460" 4.900"
Cadillac 00-00 1967-*   425, 472, 500" 5.000"

Automotive

Acura
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
4-1678cc 1.7L B17a 3.189 3.205 5.208 1.6250 0.9950 90.0
4-1797cc 1.8L B18c 3.189 3.433 5.429 1.5814 0.9289 90.0
4-1834cc 1.8L B18a 3.189 3.504 5.394 1.5394 0.9101 90.0
4-1998cc 1.8L K20a 3.386 3.386 5.472 1.6161 1.0000 3.700 - 94.0mm
4-2354cc 2.4L K24a/z 87.0 99.0 152.0 1.5354 0.8788 3.700 - 94.0mm
5-2455cc 2.5L 3.35 3.40 0.000 0.000 0.9853 -
6-2971cc 3.0L 3.540 3.070 0.000 0.000 1.1531 -
6-3176cc 3.2L 3.660 3.070 0.000 0.000 1.1922 -
6-3203cc 3.2L 3.540 3.310 0.000 0.000 1.0695 -



Alfa Romeo
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
F4-1186cc 80.0 59.0 0.000 0.000 1.3559 -
4-1290cc 74.0 75.0 0.000 0.000 0.9867 -
4-1567cc 78.0 82.0 0.000 0.000 0.9512 -
4-1884cc 82.55 88.0 0.000 0.000 0.9381 93.0
4-1905cc 86.0 82.0 0.000 0.000 1.0488 93.0
4-1974cc 84.5 88.0 0.000 0.000 0.9602 93.0
4-1985cc 84.5 88.5 0.000 0.000 0.9548 93.0
4-1997.4cc 85.0 88.0 0.000 0.000 0.9659 93.0
6-2954.4cc 82.55 92.0 0.000 0.000 0.8973 -
V6-2959cc 93.0 72.6 0.000 0.000 1.2810 -
V6-3179cc 93.0 78.0 0.000 0.000 1.1923 -
6-3576.3cc 88.0 98.0 0.000 0.000 0.8980 -
V8-1995.5cc Alum 78.0 52.2 0.000 0.000 1.4943 -
V8-2039.1cc 79.0 52.0 0.000 0.000 1.5192 -
V8-4691cc Alum 94.0 84.5 0.000 0.000 1.1124 -



AMC - Jeep - Rambler
4 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-121 3.410 3.320 0.000 0.000 1.0271 -
I-134 3.125 4.375 9.187 2.0999 0.7143 -
I-150 2.5L 3.876 3.188 0.000 0.000 1.2158 -
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-242 4.0L - Iron 3.88 3.41 6.125 1.7962 1.1378 4.380
I-172 - Iron 3.125 3.750 6.625 1.7667 0.8333 -
L-I-184 - Iron 3.125 4.000 6.625 1.6563 0.7813 -
L-I-196 - Iron 3.125 4.250 6.125 1.4412 0.7353 -
I-184 - Iron 3.125 4.000 6.625 1.6563 0.7813 -
I-196 - Iron 3.125 4.250 6.125 1.4412 0.7353 3.44-3.88
I-199 - Iron 3.750 3.000 6.125 2.0417 1.2500 -
I-225 - Iron 3.750 3.400 5.960 1.7529 1.1029 -
I-232 - Iron 3.750 3.500 6.125 1.7500 1.0714 4.380
I-232 - Iron 3.750 3.500 5.875 1.6786 1.0714 4.380
I-258 - Iron 3.750 3.900 5.875 1.5064 0.9615 4.38
8 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
250 - Iron 3.500 3.250 6.375 1.9615 1.0769 4.750
287 - Iron 3.750 3.250 6.375 1.9615 1.1538 4.750
327 - Iron 4.000 3.250 6.375 1.9615 1.2308 4.750
290 - Iron 3.750 3.280 5.875 1.7912 1.1433 4.750
304 - Iron 3.750 3.440 5.875 1.7078 1.0901 4.750
343 - Iron 4.080 3.280 5.875 1.7912 1.2439 4.750
360 - Iron 4.080 3.440 5.875 1.7078 1.1860 4.750
'68-69 390 - Iron 4.165 3.574 5.790 1.6200 1.1654 4.750
'70 390 - Iron 4.165 3.574 5.858 1.6391 1.1654 4.750
401 - Iron 4.165 3.680 5.858 1.5918 1.1318 4.750



Aston Marton
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
6-3239cc DB7 91.0 83.0 0.000 0.000 1.0964 -
V8-4.3L - Alum 89.0 86.0 0.000 0.000 1.0349 -
V8-5341cc 100.0 85.0 0.000 0.000 1.1765 -
V12-5.9L - Alum 89.0 79.0 0.000 0.000 1.1266 -
V12-6.0L DB7 GT - Alum 3.500 3.130 0.000 0.000 1.1182 -



Audi
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1780cc 1.8L 3.189 3.402 0.000 0.000 0.9374 88.0
4-121 1984cc 2.0L 82.5 92.8 144.0 1.5517 0.8890 -
I5-135.8 2.2L 3.189 3.401 5.354 1.5742 0.9377 -
V6-2.7L 3.190 3.400 0.000 0.000 0.9382 90.0
V6-2.8L 3.25 3.40 0.000 0.000 0.9559 90.0
V8-4.2L 84.0 93.0 0.000 0.000 0.9032 90.0
V8-4.2L 85.0 93.0 0.000 0.000 0.9140 90.0
V10-5.2L 84.0 93.0 0.000 0.000 0.9032 90.0



Bentley
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
V8-6.7L 104.1 99.0 0.000 0.000 1.0515 -



BMW
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
V10-5.0L 92.0 75.0 0.000 0.000 1.2267 -
V12-4992cc 5.0L 3.31 2.95 0.000 0.000 1.1220 91.0
V12-5972cc - Alum 89.0 80.0 0.000 0.000 1.1125 -
4 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1499cc Iron 82.0 71.0 135.0 1.9014 1.1549 100.0
I4-1573cc 84.0 71.0 0.000 0.000 1.1831 -
I4-1596cc 84.0 72.0 0.000 0.000 1.1667 -
I4-1596cc 85.0 77.0 0.000 0.000 1.1039 -
I4-1.6L - Iron 85.0 77.0 0.000 0.000 1.1039 -
I4-1796cc iron 84.0 81.0 135.0 1.6667 1.0370 91.0
I4-1796cc iron 84.0 81.0 140.0 1.7284 1.0370 91.0
I4-2302cc 93.4 84.0 144.0 1.7143 1.1119 -
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I6-1991cc Iron 80.0 66.0 130.0 1.9697 1.2121 91.0
I6-1991cc Iron 80.0 66.0 135.0 2.0455 1.2121 91.0
I6-2316cc 80.0 76.8 0.000 0.000 1.0417 91.0
I6-2443cc Diesel Iron 80.0 81.0 135.0 1.6667 0.9877 91.0
I6-2481cc 2.5L 3.300 2.950 0.000 0.000 1.1186 91.0
I6-2494cc - Iron 84.0 75.0 135.0 1.8000 1.1200 91.0
I6-2494cc - Alum 86.0 71.6 130.0 1.8156 1.2011 100.0
I6-2497cc - Iron 80.0 82.8 130.0 1.5700 0.9662 91.0
I6-2693cc 84.0 81.0 130.0 1.6049 1.0370 91.0
I6-2788cc Iron 86.0 80.0 135.0 1.6875 1.0750 100.0
I6-2793cc 84.0 84.0 135.0 1.6071 1.0000 91.0
I6-2926cc Diesel 84.0 88.0 135.0 1.5341 0.9545 91.0
I6-2979cc - Alum 84.0 89.6 0.000 0.000 0.9375 91.0
I6-2963cc 85.5 86.0 0.000 0.000 0.9942 91.0
I6-2986cc Iron 89.0 80.0 135.0 1.6875 1.1125 100.0
I6-3003cc Iron 89.25 80.0 135.0 1.6875 1.1156 100.0
I6-3.0L - Aftermarket 85.0 88.0 0.000 0.000 0.9659 -
I6-3.1L - Aftermarket 86.0 90.0 0.000 0.000 0.9556 -
S52B32 - I6-3152cc 86.4 89.6 0.000 0.000 0.9643 100.0
S50B32 - I6-3202cc 86.4 91.0 0.000 0.000 0.9495 100.0
I6-3246cc - Iron 87.0 91.0 139.0 1.5275 0.9560 91.0
I6-3210cc - Iron 89.0 86.0 135.0 1.5698 1.0349 100.0
I6-3300cc - Iron 89.0 88.4 135.0 1.5271 1.0068 100.0
I6-3430cc - Iron 92.0 86.0 135.0 1.5698 1.0698 100.0
S38B35 - I6-3453cc - Iron 93.4 84.0 144.0 1.7143 1.1119 100.0
S38B36 - I6-3535cc - Iron 93.4 86.0 144.0 1.6744 1.0860 100.0
S38b38 - I6-3795cc - Iron 94.6 90.0 142.5 1.5833 1.0511 100.0
8 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
M60B30 - V8-2997cc Alum 84.0 67.6 143.0 2.1154 1.2426 98.0
M60B40 - V8-3982cc Alum 89.0 80.0 143.0 1.7875 1.1125 98.0
M62B44 - V8-4398cc - Alum 92.0 82.7 0.000 0.000 1.1125 98.0
M62B46 - V8-4619cc - Alum 93.0 85.0 0.000 0.000 1.0941 98.0
S62B50 - V8-4941cc - Alum 94.0 89.0 141.5 1.5899 1.0562 -
S65B40 - V8-3999cc - Alum 92.0 75.2 140.72 1.8713 1.2234 98.0
S65B44 - V8-4361cc - Alum 92.0 82.0 0.000 0.000 1.1220 98.0



Buick
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-225 3.750 3.400 5.960 1.7529 1.1029 -
I-250 3.875 3.530 5.700 1.6147 1.0977 -
V-181(3.0L) 3.800 2.660 0.000 0.000 1.4286 -
V-196(3.2L) 3.500 3.400 5.960 1.7529 1.0294 -
V-198 3.625 3.200 5.860 1.8313 1.1328 -
V-204(3.3L) 3.70 3.16 0.000 0.000 1.1709 -
V-217(3.6L) 3.70 3.37 0.000 0.000 1.0979 -
V-225 3.750 3.400 5.960 1.7529 1.1029 4.240
V-231(3.8L) 3.80 3.40 5.960 1.7529 1.1176 4.240
V-252(4.1L) 3.965 3.400 5.960 1.7529 1.1662 -
8 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-233 - Iron 3.090 3.880 0.000 0.000 0.7964 -
I-235 - Iron 2.970 4.250 0.000 0.000 0.6988 -
I-248 - Iron 3.090 4.130 6.625 1.6041 0.7482 -
I-264 - Iron 3.1875 4.130 6.625 1.6041 0.7718 -
I-278 - Iron 3.090 4.630 0.000 0.000 0.6674 -
I-320 - Iron 3.440 4.310 0.000 0.000 0.7981 -
I-345 - Iron 3.130 5.000 0.000 0.000 0.6260 -
400 - Iron 4.188 3.625 0.000 0.000 1.1553 -
Nail Head
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
264 - Iron 3.625 3.203 6.000 1.8732 1.1318 -
322 - Iron 4.000 3.203 6.000 1.8732 1.2488 -
364 - Iron 4.125 3.391 6.100 1.7989 1.2165 -
401 - Iron 4.1875 3.640 6.220 1.7088 1.1504 -
425 - Iron 4.3125 3.640 6.220 1.7088 1.1848 -
SB
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
215 - Alum 3.500 2.800 5.660 2.0214 1.2500 4.240
300 - Iron 3.750 3.400 5.960 1.7529 1.1029 4.240
340 - Iron 3.750 3.850 6.387 1.6590 0.9740 4.240
350 - Iron 3.800 3.850 6.358 1.6514 0.9870 4.240
BB
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
400 - Iron 4.040 3.900 6.600 1.6923 1.0359 4.750
430 - Iron 4.1875 3.900 6.600 1.6923 1.0737 4.750
455 - Iron 4.3125 3.900 6.600 1.6923 1.1058 4.750



Cadillac
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-4 112 3.500 2.900 0.000 0.000 1.2069 -
v8-258 4.2L - Alum 3.52 3.307 0.000 0.000 1.0644 -
v8-278.5 4565 cc Northstar - Alum 3.661 3.307 0.000 0.000 1.1070 4.0157 / 102mm
v8-346 5.7L - CTS-V(LS6) 3.90 3.62 0.000 0.000 1.0773 4.400
V16-452 3.000 4.000 0.000 0.000 0.7500 -
L-V8-346 3.500 4.500 0.000 0.000 0.7778 -
350 4.057 3.385 0.000 0.000 1.1985 -
Early
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
331 - Iron 3.810 3.630 6.625 1.8251 1.0496 4.562
365 - Iron 4.000 3.630 6.625 1.8251 1.1019 4.562
390 - Iron 4.000 3.880 6.500 1.6753 1.0309 4.562
429 - Iron 4.130 4.000 6.500 1.6250 1.0325 4.562
Late
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
368 - Iron 3.800 4.060 6.750 1.6626 0.9360 5.000
425 - Iron 4.080 4.060 6.750 1.6626 1.0049 5.000
472 - Iron 4.300 4.060 6.750 1.6626 1.0591 5.000
500 - Iron 4.300 4.304 6.750 1.5683 0.9991 5.000



Caterpillar
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
6-8808cc 8.8L Diesel 112.0 149.0 0.000 0.000 0.7517 133.0



Chevy
4 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-85 1.4l 3.228 2.606 4.800 1.8419 1.2387 -
I-97.6 1.6l 3.228 2.980 4.800 1.6107 1.0832 -
I-112 3.501 2.910 5.425 1.8643 1.2031 -
I-122 Cosworth 3.501 3.160 5.700 1.8038 1.1079 -
I-140 OHC 3.501 3.625 5.700 1.5724 0.9658 4.000
I-2392cc 146ci Z24 90.0 94.0 0.0 0.000 0.9574 -
I-151 4.002 3.010 6.050 2.0100 1.3296 -
I-153 3.875 3.250 5.700 1.7538 1.1923 -
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
F-140 (Corvair) 3.375 2.600 4.720 1.8154 1.2981 4.850
F-145 (Corvair) 3.428 2.600 4.720 1.8154 1.3185 4.850
F-164 2683cc (Corvair) 3.4375 2.940 4.718 1.6048 1.1692 4.850
173 3.500 3.000 5.700 1.9000 1.1667 -
I-194 3.563 3.250 5.700 1.7538 1.0963 4.400
196 3.500 3.400 5.960 1.7529 1.0294 -
200 3.500 3.484 5.700 1.6361 1.0046 -
I-207 3.620 3.310 5.700 1.7221 1.0937 -
I-215 3.875 3.250 0.00 0.00 1.1923 4.400
I-216 3.500 3.750 6.813 1.8168 0.9333 -
229 3.736 3.484 5.700 1.6361 1.0723 -
I-230 3.875 3.250 5.700 1.7538 1.1923 4.400
231 - Iron 3.800 3.400 5.960 1.7529 1.1176 -
I-235 3.560 3.838 6.813 1.7751 0.9276 -
I-250 3.875 3.530 5.700 1.6147 1.0977 4.400
262 4.005 3.484 5.700 1.6361 1.1495 4.400
I-292 3.875 4.120 6.766 1.6422 0.9405 4.400
8 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
262 - Iron 3.671 3.109 5.700 1.8334 1.1808 -
265 - Iron 3.755 3.000 5.700 1.9000 1.2517 4.400
267 - Iron 3.500 3.484 5.700 1.6361 1.0046 4.400
283 - Iron 3.875 3.000 5.700 1.9000 1.2917 4.400
302 - Iron 4.002 3.005 5.700 1.8968 1.3318 4.400
305 - Iron 3.736 3.484 5.700 1.6361 1.0723 4.400
307 (Olds) - Iron 3.800 3.385 6.000 1.7725 1.1226 4.625
307 - Iron 3.875 3.250 5.700 1.7538 1.1923 4.400
327 - Iron 4.000 3.250 5.700 1.7538 1.2308 4.400
350 - Iron 4.000 3.484 5.700 1.6361 1.1481 4.400
LS 346 3.898 3.622 6.098 1.6836 1.0762 4.400
LS 346 3.898 3.622 6.125 1.6911 1.0762 4.400
350 LS1 (346.4) 3.900 3.625 6.100 1.6828 1.0759 4.400
LS1 347-Eagle - Alum 3.905 3.622 6.125 1.6911 1.0781 4.400
LS1 373.6-Eagle - Alum 3.905 3.900 6.125 1.5705 1.0013 4.400
LS1 383 3.903 4.000 6.125 1.5313 0.9758 4.400
LS1 383.2-Eagle - Alum 3.905 4.000 6.200 1.5500 0.9763 4.400
LS1 392.8-Eagle - Alum 3.905 4.100 6.125 1.4939 0.9524 4.400
LS1 383 3.903 4.125 6.125 1.4848 0.9462 4.400
LS1 398-Eagle - Iron 4.030 3.900 6.200 1.5897 1.0333 4.400
LS1 408.2-Eagle - Iron 4.030 4.000 6.125 1.5313 1.0075 4.400
LS2 364-6.0l Gen IV - Alum 4.000 3.622 0.000 0.000 1.1044 4.400
LS6 346-5.7l Gen III - Iron 3.903 3.622 6.098 1.6836 1.0776 4.400
LS6 364-6.0l Gen IV - Alum 4.000 3.622 0.000 0.000 1.1044 4.400
LQ1 364-6.0l Gen III - Iron 4.000 3.622 0.000 0.000 1.1044 4.400
LQ9 364-6.0l Gen III - Iron 4.000 3.622 0.000 0.000 1.1044 4.400
350 LT5 - Iron 3.900 3.661 5.740 1.5679 1.0653 4.400
376-6.2l Gen IV - Alum 4.060 3.622 0.000 0.000 1.1209 4.400
LS7 427-7.0l Gen IV - Alum 4.125 4.000 0.000 0.000 1.0313 4.400
427-7.0l Gen IV - Alum 4.180 3.875 0.000 0.000 1.0787 4.400
400 - Iron 4.126 3.750 5.565 1.4840 1.1003 4.400
HT/ZZ383 4.006 3.800 0.000 0.000 1.0542 4.400
R07 / NASCAR - Iron (CGI) 0.001 0.001 0.000 0.000 1.0000 4.500
W
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
348 - Iron 4.125 3.250 6.135 1.8877 1.2692 4.840
409- Iron 4.313 3.500 6.010 1.7171 1.2323 4.840
427 Z11 - Iron 4.313 3.650 6.136 1.6811 1.1816 4.840
BB - Rat
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
366 - Iron 3.935 3.766 6.135 1.6290 1.0449 4.840
396 - Iron 4.094 3.766 6.135 1.6290 1.0871 4.840
402 - Iron 4.125 3.766 6.135 1.6290 1.0953 4.840
427 - Iron 4.250 3.766 6.135 1.6290 1.1285 4.840
430 - Alum 4.440 3.470 6.400 1.8444 1.2795 4.840
454 - Iron 4.250 4.000 6.135 1.5338 1.0625 4.840
465 4.440 3.750 0.000 0.000 1.1840 4.840
482 - Iron 4.250 4.500 6.135 1.3633 0.9444 4.840
495 4.440 4.000 0.000 0.000 1.1100 4.840
ZZ454 - Iron 4.250 4.000 6.135 1.5338 1.0625 4.840
ZZ502 - Iron 4.466 4.000 6.135 1.5338 1.1165 4.840
ZZ572 - Iron 4.560 4.375 0.000 0.000 1.0423 4.840
DRCE2 (Drag Race) - Iron 0.0001 0.0001 0.000 0.000 1.0000 4.900
DRCE3 (Drag Race) - Iron 0.0001 0.0001 0.000 0.000 1.0000 4.900



Chrysler
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
Lv8-323 - Iron 3.250 3.875 0.000 0.000 0.8387 -
v8-287 4.7L - Iron 3.66 3.40 6.12 1.8000 1.0765 4.09
4 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-86 2.91 3.23 5.158 1.5969 0.9009 -
I-91 3.39 2.53 4.966 1.9628 1.3399 -
I-98 3.03 3.39 6.051 1.7850 0.8938 -
I-98 Peugeot 3.07 3.46 0.000 0.000 0.8873 -
I-105 VW 3.13 3.40 5.360 1.5765 0.9206 -
I-122 1997 cc Mitsubishi 3.346 3.465 5.906 1.7045 0.9657 -
I-156 Mitsubishi 3.59 3.86 6.535 1.6930 0.9301 -
I-2.0L 3.44 3.24 0.000 0.000 1.0617 3.78 / 96mm
I-122 1996 cc ECB/ECC - Iron 3.445 3.268 5.470 1.6738 1.0542 3.78 / 96mm
I-135 2.2L 87.5 93.0 151.1 1.6247 0.9409 3.78 / 96mm
I-148 2429 cc - Iron 3.445 3.976 5.945 1.4952 0.8664 3.78 / 96mm
I-2.5L 153ci 3.445 4.094 6.180 1.5095 0.8415 3.78 / 96mm
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
V-152 2497 cc 3.290 2.992 0.000 0.000 1.0996 -
V-167 2736 cc - Alum 3.386 3.091 0.000 0.000 1.0954 -
V-181 2972 cc - Iron 3.587 2.992 0.000 0.000 1.1989 -
V-195 3.2L Crossfire - Alum 3.539 3.307 0.000 0.000 1.0702 -
V-195 3231 cc 3.622 3.189 0.000 0.000 1.1358 -
V-201 3301 cc - Iron 3.66 3.19 0.000 0.000 1.1473 4.45
V-215 3518 cc - Alum 3.78 3.19 0.000 0.000 1.1850 4.45
V-231 3785 cc 3.78 3.43 0.000 0.000 1.1020 4.45
V-238.5 3908 cc - Iron 3.91 3.31 6.123 1.8498 1.1813 4.460
L-I-217 - Iron 3.250 4.375 0.000 0.000 0.7429 -
L-I-230 - Iron 3.250 4.625 0.000 0.000 0.7027 -
L-I-237 - Iron 3.4375 4.250 0.000 0.000 0.8088 -
L-I-251 - Iron 3.4375 4.500 0.000 0.000 0.7639 -
L-I-264 - Iron 3.4375 4.750 0.000 0.000 0.7237 -
I-170 - Iron 3.400 3.124 5.707 1.8268 1.0883 3.98-4.00
I-198 - Iron 3.400 3.640 7.006 1.9247 0.9341 -
I-225 - Iron 3.400 4.120 6.699 1.6260 0.8252 3.98-4.00
I-359 4.020 4.720 0.000 0.000 0.8517 -
I-215 - Iron 3.50 3.68 0.000 0.000 0.9511 -
I-245 - Iron 3.76 3.68 0.000 0.000 1.0217 -
I-265 - Iron 3.91 3.68 0.000 0.000 1.0625 -
8 Cylinder - Poly A
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
277 - Iron 3.750 3.125 6.123 1.9594 1.2000 4.460
301 - Iron 3.910 3.125 6.123 1.9594 1.2512 4.460
303 - Iron 3.8125 3.310 6.123 1.8498 1.1518 4.460
318 - Iron 3.910 3.310 6.123 1.8498 1.1813 4.460
326 - Iron 3.950 3.310 6.123 1.8498 1.1934 4.460
LA
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
273 - Iron 3.625 3.310 6.123 1.8498 1.0952 4.460
318 - Iron 3.910 3.310 6.123 1.8498 1.1813 4.460
340 - Iron 4.040 3.310 6.123 1.8498 1.2205 4.460
360 - Iron 4.000 3.580 6.123 1.7103 1.1173 4.460
AJPE Hemi
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
531.6 8.7L 4.75 3.75 0.00 0.000 1.2667 5.3
New Hemi
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
346 5.7L - Iron 3.92 3.58 6.25 1.7458 1.0950 4.46
370 6.0L - Iron 4.055 3.58 6.25 1.7458 1.1327 4.46
B / RB
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
350 - Iron 4.063 3.380 6.358 1.8811 1.2021 4.800
361 - Iron 4.120 3.380 6.358 1.8811 1.2189 4.800
383 - Iron 4.250 3.380 6.358 1.8811 1.2574 4.800
400 - Iron 4.340 3.380 6.358 1.8811 1.2840 4.800
383 - Iron 4.031 3.750 6.768 1.8048 1.0749 4.800
413 - Iron 4.190 3.750 6.768 1.8048 1.1173 4.800
426 - Iron 4.250 3.750 6.768 1.8048 1.1333 4.800
440 - Iron 4.320 3.750 6.768 1.8048 1.1520 4.800
Late Hemi
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
426 Hemi - Iron 4.250 3.750 6.860 1.8293 1.1333 4.800
500 4.380 4.150 0.000 0.000 1.0554 4.800
528 4.500 4.150 0.000 0.000 1.0843 4.800
572.6 4.500 4.500 0.000 0.000 1.0000 4.800
604.4 4.500 4.750 0.000 0.000 0.9474 4.800
636 4.500 5.000 0.000 0.000 0.9000 4.800
Poly - Dodge
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
241 LB - Iron 3.4375 3.250 5.9375 1.8269 1.0577 4.1875
259 LB - Iron 3.5625 3.250 5.9375 1.8269 1.0962 4.1875
270 LB - Iron 3.625 3.250 5.9375 1.8269 1.1154 4.1875
315 HB - Iron 3.625 3.800 6.618 1.7416 0.9539 4.1875
325 HB - Iron 3.6875 3.800 6.618 1.7416 0.9704 4.1875
Poly - Chrysler
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
301 LB - Iron 3.5625 3.625 6.625 1.8276 0.9828 4.5625
331 LB - Iron 3.8125 3.625 6.625 1.8276 1.0517 4.5625
354 LB - Iron 3.9375 3.625 6.625 1.8276 1.0862 4.5625
Early Hemi - Dodge
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
241 LB - Iron 3.4375 3.250 5.9375 1.8269 1.0577 4.1875
270 LB - Iron 3.625 3.250 5.9375 1.8269 1.1154 4.1875
315 HB - Iron 3.625 3.800 6.618 1.7416 0.9539 4.1875
325 HB - Iron 3.6875 3.800 6.618 1.7416 0.9704 4.1875
Early Hemi - DeSoto
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
276 LB - Iron 3.625 3.344 6.067 1.8143 1.0840 4.3125
291 LB - Iron 3.720 3.344 6.067 1.8143 1.1124 4.3125
330 HB - Iron 3.720 3.800 6.625 1.7434 0.9789 4.3125
341 HB - Iron 3.781 3.800 6.625 1.7434 0.9950 4.3125
345 HB - Iron 3.800 3.800 6.625 1.7434 1.0000 4.3125
Early Hemi - Chrysler
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
331 LB - Iron 3.8125 3.625 6.625 1.8276 1.0517 4.5625
354 LB - Iron 3.9375 3.625 6.625 1.8276 1.0862 4.5625
392 HB - Iron 4.000 3.906 6.956 1.7808 1.0241 4.5625
10 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
V10 - 487.58 8.0L Viper 4.00 3.88 0.000 0.000 1.0309 4.460
V10 - 505 8.2L SRT-10 - Alum 4.03 3.96 0.000 0.000 1.0177 4.460



Cummins
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-122 1991cc Marine 83.0 92.0 0.000 0.000 0.9022 -
I4-169 2776cc Marine 94.0 100.0 0.000 0.000 0.9400 -
4-239 3922cc 102.0 120.0 192.0 1.6000 0.8500 120.0
I6-254 4164cc Marine 94.0 100.0 0.000 0.000 0.9400 -
I6-359 5883cc 102.0 120.0 192.0 1.6000 0.8500 120.0
6-378 6194cc 4.625 3.750 0.000 0.000 1.2333 -
I6-408 6690cc 107.0 124.0 192.0 1.5484 0.8629 120.0
6-464 7603cc 4.4375 5.000 0.000 0.000 0.8875 -
I6-504.5 8268cc 114.0 135.0 0.000 0.000 0.8444 -
6-611 10014cc 125.0 136.0 0.000 0.000 0.9191 -
6-661 10824cc 125.0 147.0 0.000 0.000 0.8503 -
6-885 14016cc 5.500 6.000 0.000 0.000 0.9167 -
6-1150 18853cc 6.250 6.250 0.000 0.000 1.0000 -
8-470 7709cc 4.625 3.500 0.000 0.000 1.3214 -
v8-504 8259cc 4.625 3.750 0.000 0.000 1.2333 -
8-554.4 9085cc 4.625 4.125 0.000 0.000 1.1212 -
8-903 14794cc 5.500 4.750 0.000 0.000 1.1579 -
12-1710.6 28032cc 5.500 6.000 0.000 0.000 0.9167 -
12-2301 37706cc 6.250 6.250 0.000 0.000 1.0000 -
16-3068 50275cc 6.250 6.250 0.000 0.000 1.0000 -



Ferrari
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
v10-2998.5cc 3.0l 1998 F1 91.5 45.6 110.0 2.4123 2.0066 -
2000 F1 8-2.4L 96.0 41.4 0.000 0.000 2.3188 106.5
2008 F1 8-2.4L 98.0 39.75 0.000 0.000 2.4654 106.5
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
6-1489.3cc 70.0 64.5 0.0 0.000 1.0853 -
6-1490.2cc 72.0 61.0 0.0 0.000 1.1803 -
6-1575.7cc 72.0 64.5 0.0 0.000 1.1163 -
v6-1592.6cc 77.0 57.0 0.0 0.000 1.3509 -
v6-1983.7cc 77.0 71.0 0.0 0.000 1.0845 -
v6-1986.6cc 86.0 57.0 0.0 0.000 1.5088 -
6-2195.2cc 81.0 71.0 0.0 0.000 1.1408 -
6-2417.3cc 85.0 71.0 0.0 0.000 1.1972 -
v6-2419.2cc 92.5 60.0 0.0 0.000 1.5417 -
6-2451.4cc 85.0 72.0 0.0 0.000 1.1806 -
6-2495.6cc 85.0 73.3 129.0 1.7599 1.1596 -
v6-2862.8cc 90.0 75.0 0.0 0.000 1.2000 -
6-2962.1cc 85.0 87.0 0.0 0.000 0.9770 -
6-3210.1cc 87.0 90.0 0.0 0.000 0.9667 -
v8 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
2.9L 82.0 69.0 0.000 0.000 1.1884 -
2855cc 80.0 71.0 0.000 0.000 1.1268 -
2927cc 81.0 71.0 0.000 0.000 1.1408 -
2929cc 81.9 69.5 0.000 0.000 1.1784 -
3160cc 83.0 73.0 0.000 0.000 1.1370 -
3185.8cc 3.2L 83.0 73.6 0.000 0.000 1.1277 -
3.2L 83.0 74.0 0.000 0.000 1.1216 -
3.4L 85.0 75.0 0.000 0.000 1.1333 -
3467cc 3.35 3.00 0.000 0.000 1.1167 -
3504cc 85.1 77.0 0.000 0.000 1.1052 -
3586.3cc 3.6L - Alum 85.0 79.0 0.000 0.000 1.0759 -
3.8L 89.0 77.0 0.000 0.000 1.1558 -
4040cc 85.0 89.0 0.000 0.000 0.9551 -
4308cc 92.0 81.0 0.000 0.000 1.1358 104.0
12 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
v-1497cc 55.0 52.5 0.000 0.000 1.0476 -
v-1995cc 60.0 58.8 0.000 0.000 1.0204 -
v-2341cc 65.0 58.8 0.000 0.000 1.1054 -
v-2563cc 68.0 58.8 0.000 0.000 1.1565 -
2951cc 2.870 2.320 0.000 0.000 1.2371 -
v-2953cc 73.0 58.8 0.000 0.000 1.2415 -
v-3286cc 77.0 58.8 0.000 0.000 1.3095 -
v-3267cc 77.0 71.0 0.000 0.000 1.0845 -
v-4023cc 77.0 72.0 0.000 0.000 1.0694 -
v-4102cc 80.0 68.0 0.000 0.000 1.1765 -
v-4297cc 94.0 77.4 0.000 0.000 1.2145 -
v-4390cc 81.0 71.0 0.000 0.000 1.1408 -
v-4823cc 81.0 78.0 0.000 0.000 1.0385 -
v-4699cc - Iron 85.0 69.0 0.000 0.000 1.2319 -
v-4943cc 82.0 78.0 0.000 0.000 1.0513 -
v-5474cc 88.0 75.0 0.000 0.000 1.1733 -
v-5.7L - 5673 cc - Alum 89.0 76.0 0.000 0.000 1.1711 -
v-5.7L - 5748 cc - Alum 89.0 77.0 0.000 0.000 1.1558 -
v-6.0L - 5983 cc 92.0 75.0 0.000 0.000 1.2267 104.0
v-6.0L - 5998.8 cc 92.0 75.2 0.000 0.000 1.2234 104.0



Fiat
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1116 80.0 55.5 0.000 0.000 1.4414 -
I4-1285 80.0 63.9 0.000 0.000 1.2520 -
I4-1290 86.0 55.5 0.000 0.000 1.5495 -
I4-1302 86.4 55.5 0.000 0.000 1.5568 -
I4-1372 80.5 67.4 0.000 0.000 1.1944 -
I4-1499 86.4 63.9 0.000 0.000 1.3521 -
I4-1581 86.4 67.4 0.000 0.000 1.2819 -
I4-1585 84.0 71.5 0.000 0.000 1.1748 -
I4-1592.4 80.0 79.2 0.000 0.000 1.0101 -
I4-1608.5 80.0 80.0 0.000 0.000 1.0000 -
I4-1755.6 84.0 79.2 0.000 0.000 1.0606 -
I4-1995 84.0 90.0 0.000 0.000 0.9333 -



Ford - Edsel - Lincoln - Mercury
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
L-V8-136 2.600 3.200 0.000 0.000 0.8125 -
L-V8-150 2.690 3.300 0.000 0.000 0.8152 -
L-V8-221 3.0625 3.750 7.000 1.8667 0.8167 -
L-V8-239 3.1875 3.750 7.000 1.8667 0.8500 -
L-V8-255 3.1875 4.000 7.000 1.7500 0.7969 -
L-V8-337 3.50 4.375 0.00 0.00 0.8000 -
4 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I-81 1.3L Kia 2.79 3.29 0.000 0.000 0.8480 -
I-97.4 1597 cc 2.992 3.465 0.000 0.000 0.8635 -
I-98 1599 cc Kent 3.188 3.056 4.928 1.6126 1.0432 3.780
I-98 1599 cc CVH 3.150 3.130 5.194 1.6594 1.0064 3.614
I-114 1861 cc CVH 3.230 3.465 5.1945 1.4991 0.9322 3.614
I-118 1948 cc - Alum 83.0 90.0 0.000 0.000 0.9222 -
I-121 1989 cc Zetec - Iron 3.339 3.465 5.3618 1.5474 0.9636 3.614
I-121 1989 cc ZX3 3.339 3.465 5.48 1.5815 0.9636 -
I-122 1993 cc OHC 3.575 3.029 4.977 1.6431 1.1803 4.016
I-140 2301 cc OHC 3.780 3.126 5.2047 1.6650 1.2092 4.173
I-153 2502 cc OHC 3.780 3.401 5.457 1.6045 1.1114 4.173
I-140 2301 cc Ranger 3.781 3.126 5.457 1.7457 1.2095 4.173
I-138 2261 cc - Alum 3.445 3.701 6.904 1.8654 0.9308 3.780
I-140 2301 cc HSC 3.680 3.300 5.457 1.6536 1.1152 4.080
I-152 2498 cc HSC 3.680 3.583 5.990 1.6718 1.0271 4.080
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
V-152 2487 cc 3.327 2.921 0.000 0.000 1.1390 -
V-152 2498 cc 3.215 3.1299 5.437 1.7371 1.0272 4.0157 / 102mm
V-155 2545 cc 3.2447 3.1299 5.437 1.7371 1.0367 4.0157 / 102mm
V-156 2552 cc 3.545 2.630 5.140 1.9544 1.3479 4.760
V-157 2665 cc 3.554 2.630 5.140 1.9544 1.3513 4.760
V-170 2778 cc 3.650 2.700 5.140 1.9037 1.3519 4.760
V-179 2934 cc 3.661 2.835 5.140 1.8131 1.2914 4.760
V-181 2968 cc - Alum 3.504 3.1299 5.436 1.7368 1.1195 4.0157 / 102mm
V-182 2986 cc - Alum 3.504 3.1496 5.5315 1.7563 1.1125 4.330
V-231 3791 cc - Iron 3.80 3.40 0.000 0.000 1.1176 -
V-244 4000 cc - Iron 3.95 3.32 5.748 1.7313 1.1898 -
V-256 4192 cc 3.81 3.74 6.091 1.6286 1.0187 4.193
L-I-215 - Iron 3.523 3.600 0.000 0.000 0.9786 -
L-I-226 - Iron 3.300 4.400 0.000 0.000 0.7500 -
L-I-223 - Iron 3.625 3.600 0.000 0.000 1.0069 -
I-144 - Iron 3.500 2.500 4.715 1.8860 1.4000 4.080
I-170 - Iron 3.500 2.940 4.715 1.6037 1.1905 4.080
I-200 - Iron 3.683 3.126 4.977 1.5921 1.1782 4.080
I-250 - Iron 3.682 3.910 5.880 1.5038 0.9417 4.080
I-240 - Iron 4.000 3.180 6.795 2.1368 1.2579 4.480
I-300 - Iron 4.000 3.980 6.210 1.5603 1.0050 4.480
8 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
3.4L 207ciYamaha SHO 3.25 3.13 5.437 1.7371 1.0383 4.0157 / 102mm
3.9L 242ci 3.39 3.35 0.000 0.000 1.0119 3.858
330 3.875 3.500 6.540 1.8686 1.1071 -
383 MEL - Iron 4.300 3.300 0.00 0.00 1.3030 4.900
410 MEL - Iron 4.200 3.700 6.60 1.7838 1.1351 4.900
430 MEL - Iron 4.300 3.700 6.600 1.7838 1.1622 4.900
462 MEL - Iron 4.380 3.830 0.00 0.00 1.1436 4.900
Y-Block
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
239 - Iron 3.50 3.10 6.324 2.0400 1.1290 4.375
256 - Iron 3.62 3.10 6.324 2.0400 1.1677 4.375
272 - Iron 3.620 3.300 6.324 1.9164 1.0970 4.375
292 - Iron 3.750 3.300 6.324 1.9164 1.1364 4.375
312 - Iron 3.800 3.440 6.324 1.8384 1.1047 4.375
Lincoln Y-Block
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
279 - Iron 3.562 3.50 0.000 0.000 1.0177 4.63
302 - Iron 3.63 3.66 7.065 1.9303 0.9918 4.63
317 - Iron 3.80 3.50 0.000 0.000 1.0857 4.63
332 - Iron 3.80 3.66 7.065 1.9303 1.0383 4.63
341 - Iron 3.937 3.50 0.000 0.000 1.1249 4.63
368 - Iron 4.00 3.66 7.065 1.9303 1.0929 4.63
Modular
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
4.6L 280ci - Iron / Alum 3.552 3.543 5.933 1.6746 1.0025 3.937 / 100mm
5.0L - Alum 92.2 92.7 150.7 1.6257 0.9946 100.0
5.4L - Iron 3.552 4.165 6.657 1.5983 0.8528 3.937 / 100mm
6.2L 379 ci - Iron 102.0 95.0 0.000 0.000 1.0737 115.0
Cleveland
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
Boss 302 - Iron 4.000 3.000 5.150 1.7167 1.3333 4.380
351 - Iron 4.000 3.500 5.786 1.6531 1.1429 4.380
351M - Iron 4.000 3.500 6.580 1.8800 1.1429 4.380
400 - Iron 4.000 4.000 6.580 1.6450 1.0000 4.380
Windsor
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
221 - Iron 3.500 2.870 5.155 1.7962 1.2195 4.380
255 - Iron 3.680 3.000 5.155 1.7183 1.2267 4.380
255 - Indy 3.76 2.87 0.000 0.000 1.3101 4.380
260 - Iron 3.800 2.870 5.155 1.7962 1.3240 4.380
289 - Iron 4.005 2.870 5.155 1.7962 1.3955 4.380
302 - Iron 4.002 3.000 5.090 1.6967 1.3340 4.380
351 - Iron 4.000 3.500 5.956 1.7017 1.1429 4.380
FE
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
332 - Iron 4.000 3.300 0.00 0.00 1.2121 4.630
352 - Iron 4.000 3.500 6.540 1.8686 1.1429 4.630
359 - Iron 4.050 3.500 6.540 1.8686 1.1571 4.630
360 - Iron 4.050 3.500 6.540 1.8686 1.1571 4.630
361 - Iron 4.050 3.500 6.540 1.8686 1.1571 4.630
389 - Iron 4.050 3.780 6.489 1.7167 1.0714 4.630
390 - Iron 4.050 3.780 6.489 1.7167 1.0714 4.630
391 - Iron 4.050 3.780 6.489 1.7167 1.0714 4.630
406 - Iron 4.130 3.780 6.489 1.7167 1.0926 4.630
410 - Iron 4.050 3.980 6.489 1.6304 1.0176 4.630
427 - Iron 4.230 3.780 6.489 1.7167 1.1190 4.630
428 - Iron 4.130 3.980 6.489 1.6304 1.0377 4.630
385
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
370 - Iron 4.050 3.590 6.605 1.8398 1.1281 4.900
385 - Iron 4.130 3.590 6.605 1.8398 1.1504 4.900
429 - Iron 4.362 3.590 6.605 1.8398 1.2150 4.900
460 - Iron 4.362 3.850 6.605 1.7156 1.1330 4.900
10 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
v-413 ci 6763 cc 3.552 4.165 6.657 1.5983 0.8528 3.937
12 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
362 ci 5935 cc 3.504 3.130 5.437 1.7371 1.1195 4.0157 / 102mm



Geo
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I3-60.6 993.5cc 1.3L 74.0 77.0 0.000 0.000 0.9610 -
I3-61 993 cc 2.91 3.03 0.000 0.000 0.9604 -
I4-79 1300 cc 2.91 3.03 0.000 0.000 0.9604 -
I4-80.8 1325cc 1.3L 74.0 77.0 0.000 0.000 0.9610 -
I4-96.9 1587cc 1.6L 81.0 77.0 0.000 0.000 1.0519 -
I4-97 1590 cc 3.20 3.00 0.000 0.000 1.0667 -
I4-110 1803 cc 3.20 3.40 0.000 0.000 0.9412 -



Honda
4 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
1170 cc 70.0 76.0 0.000 0.000 0.9211 -
1238 cc 72.0 76.0 128.65 1.6928 0.9474 -
1.3L 1343 cc 75.0 76.0 0.000 0.000 0.9868 -
1.4L 1396 cc 75.0 79.0 0.000 0.000 0.9494 -
1.5L 1488 cc 74.0 86.5 0.000 0.000 0.8555 -
1.5L 1493 cc D15b 75.0 84.5 134.000 1.5858 0.8876 -
1.5L 1493 cc 75.0 84.5 137.000 1.6213 0.8876 -
1.6L 1587 cc B-16 81.0 77.0 134.0 1.7403 1.0519 90.0
1.6L - 1590 cc - D16y D16z 75.0 90.0 137 1.5222 0.8333 -
1.6L - 1590 cc D-16a 2.953 3.543 5.394 1.5224 0.8335 -
1.6l - 1595 cc B16a 3.189 3.047 5.290 1.7361 1.0466 90mm
I-1.7L 1668 cc - Alum 75.0 94.4 0.000 0.000 0.7945 -
1.7L - 1678 cc B17a 3.189 3.205 5.208 1.6250 0.9950 90mm
1678 cc B-17a 81.0 81.4 132.0 1.6216 0.9951 90.0
1.8L Non VTEC - B-18a1 3.189 3.504 5.394 1.5394 0.9101 90.0
1.8L VTEC - 1797cc B-18c 81.0 87.2 137.9 1.5814 0.9289 90.0
1.8L V-TEC - B18c1 3.189 3.433 5.429 1.5814 0.9289 90mm
1.8L V-TEC 3.209 3.433 5.429 1.5814 0.9348 -
1834 cc B-18b 81.0 89.0 137.0 1.5393 0.9101 90.0
2.0L 1973 cc - B20B4 3.307 3.505 5.394 1.5389 0.9435 90mm
1987 cc 3.42 3.30 0.000 0.000 1.0364 -
1958 cc B-20a 81.0 95.0 142.75 1.5026 0.8526 90.0
1973 cc 84.0 89.0 137.0 1.5393 0.9438 -
1998 cc K20a K20c - Alum 86.0 86.0 139.0 1.6163 1.0000 94.0
1998 cc H-20 - Alum 86.0 86.0 0.000 0.000 1.0000 94.0
2056 cc B21a 83.0 95.0 141.7 1.4916 0.8737 -
2157 cc H-22 87.0 90.7 143.0 1.5766 0.9592 94.0
2.2L 2157 cc H22a 3.425 3.571 5.630 1.5766 0.9591 94mm
2.2L - F22a 3.346 3.740 5.571 1.4896 0.8947 94mm
2.2L 2207 cc 3.386 3.740 5.571 1.4896 0.9053 -
2.3L 2254 cc 3.39 3.82 0.000 0.000 0.8874 -
2.3L 2259 cc H-23a 87.0 95.0 141.5 1.4895 0.9158 94.0
I-2.4L 2354 cc - K24a Alum 87.0 99.0 152.0 1.5354 0.8788 94.0
V6
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
2.7L 2675 cc 87.0 75.0 153.0 2.0400 1.1600 -
3.0L 2977 cc - Alum 90.0 78.0 0.000 0.000 1.1538 98.0
3.0L 2997 cc - Alum 86.0 86.0 0.000 0.000 1.0000 98.0
3.2L 3179 cc - Alum 93.0 78.0 0.000 0.000 1.1923 98.0
3.2L 3206 cc 90.0 84.0 0.000 0.000 1.0714 98.0
3.2L 3210 cc - Alum 89.0 86.0 0.000 0.000 1.0349 98.0
3.5L 3471 cc - Alum 89.0 93.0 0.000 0.000 0.9570 98.0
3.5L 3474 cc - Alum 90.0 91.0 0.000 0.000 0.9890 98.0
3.7L 3664 cc 90.0 96.0 0.000 0.000 0.9375 98.0



Hyundai
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1495cc - Iron 75.5 83.5 0.000 0.000 0.9042 -
I4-1.6L - Iron 76.5 87.0 0.000 0.000 0.8793 -
I4-1975cc - Iron 82.0 93.5 0.000 0.000 0.8770 -
I4-2351cc - Iron 86.5 100.0 0.000 0.000 0.8650 -
V6-2657cc - Iron 86.7 75.0 0.000 0.000 1.1560 -
V6-3.5L - Iron 93.0 85.8 0.000 0.000 1.0839 -



Infinity
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
6-3.0L 3.43 3.27 0.000 0.000 1.0489 -
v8-3.5L Indy/IRL 93.0 64.39 0.000 0.000 1.4443 112.0
v8-4.5L 93.0 82.7 0.000 0.000 1.1245 112.0



Isuzu
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1471cc 1.5L 77.0 79.0 0.000 0.000 0.9747 -
I4-1584cc 1.6L 82.0 75.0 0.000 0.000 1.0933 -
I4-1588cc 1.6L 80.0 79.0 0.000 0.000 1.0127 -
I4-1810cc 1.8L 80.0 90.0 0.000 0.000 0.8889 -
I4-1818cc 1.8L 84.0 82.0 0.000 0.000 1.0244 -
I4-1950cc 2.0L 87.0 82.0 0.000 0.000 1.0610 -
I4-2.2L - Iron 86.1 94.6 0.000 0.000 0.9101 -
I4-2559cc 2.6L 92.6 95.0 0.000 0.000 0.9747 -
V6-3165cc 3.2L 93.4 77.0 0.000 0.000 1.2130 -
V6-3.2L - Alum 93.5 77.0 0.000 0.000 1.2143 -
V6-3494cc 3.5L 93.4 85.0 0.000 0.000 1.0988 -
V6-3.5L - Alum 93.5 85.0 0.000 0.000 1.1000 -
I6-4.2L - Alum 93.0 102.0 0.000 0.000 0.9118 -



Jaguar
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
6-3.0L 2954 cc 83.0 91.0 0.000 0.000 0.9121 105
6-3.0L 2996 cc 85.0 88.0 0.000 0.000 0.9659 105
6-3.4L 3441 cc 83.0 106.0 0.000 0.000 0.7830 105
6-4.0L 3979 cc 3.58 4.02 0.000 0.000 0.8905 105 mm
6-4.2L 4234 cc 92.07 106.0 0.000 0.000 0.8686 105
6-4.2L 4243 cc 3.63 4.17 0.000 0.000 0.8705 105 mm
V6-2.0L 2099 cc 81.6 66.8 0.000 0.000 1.2216 -
V6-2.5L 2497 cc 81.65 79.5 0.000 0.000 1.0270 -
V6-3.0L 2967 cc 89.0 79.5 0.000 0.000 1.1195 -
V8-4.2L 4196 cc 86.0 90.3 0.000 0.000 0.9524 -
V8-245 4011 cc 3.39 3.39 0.000 0.000 1.0000 -
V12-5344 cc 90.0 70.0 0.000 0.000 1.2857 105
V12-5990 cc 3.543 3.09 0.000 0.000 1.1466 105 mm



Kia
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1594cc - Iron 78.0 83.4 0.000 0.000 0.9353 -
I4-1793cc - Iron 81.0 87.0 0.000 0.000 0.9310 -
I4-1998cc - Iron 86.0 86.0 0.000 0.000 1.0000 -
I4-2351cc - Iron 86.5 100.0 0.000 0.000 0.8650 -
V6-2657cc - Iron 86.7 75.0 0.000 0.000 1.1560 -
V6-3.5L - Iron 93.0 85.5 0.000 0.000 1.0877 -



Lamborghini
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
12-4.8L 85.5 60.0 0.000 0.000 1.4250 -
12-4.9L 83.0 75.0 0.000 0.000 1.1067 -
12-5.7L 87.0 80.0 0.000 0.000 1.0875 -



Lexus
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
6-3.0L 3.39 3.39 0.000 0.000 1.0000 -
8-4.0L 3.45 3.25 0.000 0.000 1.0615 105.5



Lotus
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1557cc 1.6L Iron 82.55 72.75 0.000 0.000 1.1347 -
I4-1588cc 1.6L 80.0 79.0 0.000 0.000 1.0127 -
4-1795cc 1.8L 80.0 89.3 0.000 0.000 0.8959 -
I4-1796cc 1.8L 82.0 85.0 0.000 0.000 0.9647 -
I4-1798cc 1.8L 82.0 85.1 0.000 0.000 0.9636 -
4-1969cc 2.0L Alum 95.25 69.1 0.000 0.000 1.3784 -
4-1991cc 2.0L Iron 95.25 69.85 0.000 0.000 1.3636 -
V6-2996cc 3.0L Alum 88.0 82.1 0.000 0.000 1.0719 -
V6-2997cc 3.0L 86.0 86.0 0.000 0.000 1.0000 -
V8-1496cc 1.5L 63.0 60.0 0.000 0.000 1.0500 -
V8-3506cc 3.6L 83.0 81.0 0.000 0.000 1.0247 -



Maserati
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1088.4cc 65.0 82.0 0.000 0.000 0.7927 -
I4-1990.2cc 93.8 72.0 0.000 0.000 1.3028 -
I4-1994.3cc 92.0 75.0 0.000 0.000 1.2267 -
I4-1994.9cc 88.0 82.0 0.000 0.000 1.0732 -
I6-1488.2cc 66.0 72.5 0.000 0.000 0.9103 -
I6-1493.2cc 65.0 75.0 0.000 0.000 0.8667 -
V6-1996.2cc 82.0 63.0 0.000 0.000 1.3016 -
I6-2493.8cc 84.0 75.0 0.000 0.000 1.1200 -
V6-2675.1cc 87.0 75.0 0.000 0.000 1.1600 -
6-3.0L 3.31 3.55 0.000 0.000 0.9324 -
I6-3485.3cc 3.5L 86.0 100.0 0.000 0.000 0.8600 -
I8-1492.9cc 60.0 66.0 0.000 0.000 0.9091 -
I8-1980.5cc 62.0 82.0 0.000 0.000 0.7561 -
I8-2981.7cc 78.0 78.0 0.000 0.000 1.0000 -
V8-3217cc 80.0 80.0 0.000 0.000 1.0000 -
V8-4254cc 92.0 80.0 0.000 0.000 1.1500 -
V8-4941.1cc 5.0L 94.0 89.0 0.000 0.000 1.0562 -
V8-6462cc 110.0 85.0 0.000 0.000 1.2941 -
V12-2989.5cc 3.0L 70.4 64.0 0.000 0.000 1.1000 -
V16-3961.0cc 62.0 82.0 0.000 0.000 0.7561 -



Mazda
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1.3L 81ci 71.0 83.6 0.000 0.000 0.8493 -
I4-1.5L 91ci 77.0 80.0 0.000 0.000 0.9625 -
I4-1.6L 97ci 78.0 83.6 132.9 1.5897 0.9330 -
I4-1.8L 112ci 83.0 85.0 132.9 1.5635 0.9765 -
I4-2.0L 122ci 86.0 86.0 0.000 0.000 1.0000 -
I4-2.0L 122ci 83.0 92.0 0.000 0.000 0.9022 -
I4-2.0L 122ci 80.0 98.0 0.000 0.000 0.8163 -
I4-2.2L 133ci 86.0 94.0 0.000 0.000 0.9149 -
I4-2.5L Diesel 93.0 92.0 0.000 0.000 1.0109 -
I4-2.5L 153ci 96.0 86.4 0.000 0.000 1.1111 -
I4-2.6L 92.0 98.0 0.000 0.000 0.9388 -
6-1.8L 112ci 2.95 2.74 0.000 0.000 1.0766 -
V6-3.0L 3.43 3.27 0.000 0.000 1.0489 -
V6-2255cc 138ci 80.3 74.2 0.000 0.000 1.0822 -
V6-2497cc 152ci 84.5 74.2 0.000 0.000 1.1388 -
6-2.5L 155ci 3.22 3.17 5.426 1.7117 1.0158 -
V6-3.0L 182ci 88.9 79.8 0.000 0.000 1.1140 -
V6-4.0L 245ci 100.3 84.3 0.000 0.000 1.1898 -



Mercedes
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
4-4.5l 1914GP 93.0 164.0 0.000 0.000 0.5671 -
8-2.5l W196 76.0 69.0 0.000 0.000 1.1014 -
2008 F1 8-2.4L 98.0 39.75 0.000 0.000 2.4654 106.5
4 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
4-5918cc Iron 1900's 116.0 140.0 0.000 0.000 0.8286 -
I4-1498cc 1.5L 83.0 69.2 0.000 0.000 1.1994 -
I4-1796cc 1.8L 83.0 85.0 0.000 0.000 0.9765 -
4-1988cc 2.0L 200D/M115 87.0 83.6 0.000 0.000 1.0407 -
4-1997cc 2.0L M102 89.0 80.25 0.000 0.000 1.1090 -
I4-2034cc 2.0L 83.0 94.0 0.000 0.000 0.8830 -
4-2197cc 2.2L 220D/M115 87.0 92.4 0.000 0.000 0.9416 -
4-2299cc 2.3L M102 95.5 80.25 0.000 0.000 1.1900 -
4-2404cc 2.4L 240D 87.0 92.4 0.000 0.000 0.9416 -
4-2463cc 2.5L M102 97.3 82.8 0.000 0.000 1.1751 -
4-3005cc 3.0L 240D 3.0 87.0 92.4 0.000 0.000 0.9416 -
4-3784cc 3.8L D 97.0 128.0 0.000 0.000 0.7578 -
6 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
6-2293cc 2.3L M180 81.75 72.8 0.000 0.000 1.1229 -
6-2497cc 2.5L M114 82.0 78.8 0.000 0.000 1.0406 -
v6-2597 2.6L 89.9 68.2 0.000 0.000 1.3182 -
6-2746cc M110 86.0 78.8 0.000 0.000 1.0914 -
6-2778cc 2.8L M130 86.5 78.8 0.000 0.000 1.0977 -
6-2996cc 3.0L 88.0 82.1 0.000 0.000 1.0719 -
6-3.0L 180ci 3.48 3.16 0.000 0.000 1.1013 -
v6-3199 3.2L 89.9 84.0 0.000 0.000 1.0702 -
8 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I8-3823cc M22 78.0 100.0 0.000 0.000 0.7800 -
I8-4021cc M22 80.0 100.0 0.000 0.000 0.8000 -
8-4.2L 256ci 3.62 3.11 0.000 0.000 1.1640 -
8-5439cc 5.4L 97.0 92.0 0.000 0.000 1.0543 -
v8-6208cc M156 102.2 94.6 0.000 0.000 1.0803 -
v8-3428.9cc 97.0 58.0 116.0 2.0000 1.6724 109.0
12 Cylinder
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
v12-5513cc 5.5L M285 Alum 82.0 87.0 0.000 0.000 0.9425 -
v12-5513cc 5.5L M275 82.0 87.0 0.000 0.000 0.9425 -
v12-5980cc 6.0L M275 AMG 82.6 93.0 0.000 0.000 0.8882 -
12-6.0L 365ci 3.50 3.16 0.000 0.000 1.1076 -



Mitsubishi
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4 2.0L 1997cc 122ci 4G63 - Iron 3.346 3.465 5.906 1.7045 0.9657 -
I4 2.4L 4G64 - Iron 3.406 3.937 5.906 1.5001 0.8651 -
I4-2.6L 2554cc 156ci G54B 3.586 3.858 6.535 1.6939 0.9295 101mm
v6-181.4 2972 6G72 - Iron 91.1 76.0 0.000 0.000 1.1987 -
G54B 3.5875 3.858 6.570 1.7030 0.9299 -
v6-3.5L 6G74 - Iron 93.0 85.8 0.000 0.000 1.0839 -
v6-233.6 3828 6G75 - Iron 95.0 90.0 0.000 0.000 1.0556 -



Nissan
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
V6-3.5L 3.820 3.256 0.000 0.000 1.1732 -
I4-1.6L 2.99 3.46 0.000 0.000 0.8642 -
I4-1809cc 83.0 83.6 0.000 0.000 0.9928 -
4-2.0L SR20DET 86.0 86.0 136.3 1.5849 1.0000 -
4-2.0L RB26DET 86.5 86.0 121.4 1.4116 1.0058 -
4-1974cc (CA20E) 84.5 88.0 0.000 0.000 0.9602 97.0
4-2389cc (KA20E) 89.0 96.0 165.0 1.7188 0.9271 -
6-2392cc 83.0 73.7 133.0 1.8046 1.1262 96.5
6-2568cc R33 86.0 73.7 0.000 0.000 1.1669 96.5
6-2719cc 86.0 78.0 130.2 1.6692 1.1026 96.5
6-2771cc 87.0 77.7 0.000 0.000 1.1197 96.5
V6-2960cc 3.0L 87.0 83.0 154.2 1.8578 1.0482 -
V6-2985cc 3.0L 87.0 83.7 154.2 1.8423 1.0394 -
V6-2988cc 93.0 73.3 0.000 0.000 1.2688 -
v6-3475cc (VG33E/S) - Iron 91.5 83.0 0.000 0.000 1.1024 -
v6-3498cc (VQ35DE) - Alum 95.5 81.4 141.15 1.7340 1.1732 108.0
v6-3531cc 96.0 81.3 0.000 0.000 1.1808 108.0
V6-3954 cc 95.5 92.0 0.000 0.000 1.0380 108.0
V8-4.983L 101.6 78.6 0.000 0.000 1.2926 -
V8-4.5L 4494cc (VK45DE) - Alum 93.0 82.7 0.000 0.000 1.1245 -
1595 cc - L16 83.0 73.7 133.0 1.8046 1.1262 -
L18 85.0 78.0 130.2 1.6692 1.0897 -
Z20E 85.0 86.0 152.2 1.7698 0.9884 -



Olds
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
L-I6-238 3.50 4.125 0.000 0.000 0.8485 -
L-I6-257 3.53125 4.375 0.000 0.000 0.8071 -
L-I8-257 3.250 3.875 0.000 0.000 0.8387 -
I4-138 - 2.3L 3.625 3.350 5.810 1.7343 1.0821 -
I6-207 3.62 3.31 5.700 1.7221 1.0937 -
v8-244 4.0L Aurora 87.0 84.00 0.000 0.000 1.0357 102.0
v8-244 4.0L Aurora Indy 93.0 73.40 0.000 0.000 1.2670 102.0
I6-250 3.875 3.530 5.700 1.6147 1.0977 -
215 - Alum 3.500 2.800 5.660 2.0214 1.2500 4.240
260 3.500 3.385 6.000 1.7725 1.0340 -
Rocket
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
303 - Iron 3.750 3.4375 6.625 1.9273 1.0909 4.625
324 - Iron 3.875 3.4375 6.625 1.9273 1.1273 4.625
371 - Iron 4.000 3.6875 7.000 1.8983 1.0847 4.625
394 - Iron 4.125 3.6875 7.000 1.8983 1.1186 4.625
Late
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
307 - Iron 3.800 3.385 6.000 1.7725 1.1226 4.625
330 - Iron 3.9375 3.385 6.000 1.7725 1.1632 4.625
350 - Iron 4.057 3.385 6.000 1.7725 1.1985 4.625
403 - Iron 4.351 3.385 6.000 1.7725 1.2854 4.625
400 - Iron 4.000 3.975 6.998 1.7605 1.0063 4.625
'68-'69 400 - Iron 3.870 4.250 6.735 1.5847 0.9106 4.625
425 - Iron 4.125 3.975 6.998 1.7605 1.0377 4.625
455 - Iron 4.126 4.250 6.735 1.5847 0.9708 4.625



Packard
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I6-237 ci - Iron 3.440 4.250 0.000 0.000 0.8094 -
I6-288 ci - Iron 3.500 5.000 0.000 0.000 0.7000 -
I8-282 ci - Iron 3.250 4.250 0.000 0.000 0.7647 -
I8-316 ci - Iron 3.440 4.250 0.000 0.000 0.8094 -
I8-320 ci - Iron 3.190 5.000 0.000 0.000 0.6380 -
I8-356 ci - Iron 3.500 4.625 0.000 0.000 0.7568 -
I8-359 ci - Iron 3.5625 4.500 0.000 0.000 0.7917 -
V12-473 ci - Iron 3.440 4.250 0.000 0.000 0.8094 -
V8-320 - Iron 3.8125 3.500 6.7181 1.9195 1.0893 5.000
V8-352 - Iron 4.000 3.500 6.7181 1.9195 1.1429 5.000
V8-374 - Iron 4.125 3.500 6.7181 1.9195 1.1786 5.000



Pontiac
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-151 4.000 3.000 6.050 2.0167 1.3333 -
I4-194 - Iron 4.0625 3.750 6.625 1.7667 1.0833 4.620
L-I6-239 - Iron 3.5625 4.000 0.000 0.000 0.8906 -
L-I8-249 - Iron 3.250 3.750 0.000 0.000 0.8667 -
L-I8-268 - Iron 3.375 3.750 0.000 0.000 0.9000 -
I6-250 3.875 3.530 5.700 1.6147 1.0977 -
265 - Iron 3.750 3.000 6.050 2.0167 1.2500 4.620
287 - Iron 3.750 3.250 6.625 2.0385 1.1538 4.620
301 - Iron 4.000 3.000 6.050 2.0167 1.3333 4.620
303 - Short Deck Iron 4.120 2.840 0.000 0.000 1.4507 4.620
303 - Iron 4.120 2.840 7.080 2.4930 1.4507 4.620
316 - Iron 3.9375 3.250 6.625 2.0385 1.2115 4.620
326 - Iron 3.718 3.750 6.625 1.7667 0.9915 4.620
347 - Iron 3.9375 3.5625 6.625 1.8596 1.1053 4.620
350 - Iron 3.875 3.750 6.625 1.7667 1.0333 4.620
370 - Iron 4.0625 3.5625 6.625 1.8596 1.1404 4.620
389 - Iron 4.0625 3.750 6.625 1.7667 1.0833 4.620
400 - Iron 4.120 3.750 6.625 1.7667 1.0987 4.620
421 - Iron 4.09375 4.000 6.625 1.6563 1.0234 4.620
428 - Iron 4.120 4.000 6.625 1.6563 1.0300 4.620
455 - Iron 4.150 4.210 6.625 1.5736 0.9857 4.620



Porsche
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-2479cc 100 78.9 0.000 0.000 1.2674 122.0
I4-2990cc 104 88 0.000 0.000 1.1818 122.0
F6-2480cc - Alum 85.5 72.0 0.000 0.000 1.1875 -
F6-2650cc 956 - Alum 92.3 66.0 0.000 0.000 1.3985 -
F6-2687cc 2.7l 911 - Alum 90.0 70.4 127.8 1.8153 1.2784 118
F6-2687cc - Alum 85.5 78.0 0.000 0.000 1.0962 -
F6-2807cc 935 - Alum 92.0 70.4 127.8 1.8153 1.3068 -
F6-2994cc 3.0l 911 - Alum 95.0 70.4 127.8 1.8153 1.3494 118
F6-3164cc 3.2l 911 - Alum 95.0 74.4 127.0 1.7070 1.2769 118
F6-3179cc - Alum 93.0 78.0 0.000 0.000 1.1923 -
F6-3299cc 3.3l 911 Turbo / 962 Twin Turbo - Alum 97.0 74.4 127.0 1.7070 1.3038 -
F6-3387cc- Alum 96.0 78.0 0.000 0.000 1.2308 -
F6-3545cc 911/993 - Alum 99.1 76.2 0.000 0.000 1.3005 -
F6-3596cc - Alum 96.0 82.8 0.000 0.000 1.1594 -
F6-3600cc 3.6l 911/996 - Alum 100.0 76.4 127.0 1.6623 1.3089 -
F6-3604cc - Alum 96.0 83.0 0.000 0.000 1.1566 -
F6-3614cc 3.6l - Alum 97.0 81.5 0.000 0.000 1.1902 -
F6-3746cc - Alum 102.0 76.4 127.0 1.6623 1.3351 -
v6-3598cc Cayenne 89.0 96.4 0.000 0.000 0.9232 -
v8-4474cc 928 Alum 95.0 78.9 0.000 0.000 1.2041 -
v8-4510cc - Alum 98.0 76.0 0.000 0.000 1.2895 -
v8-4664cc 928 Alum 97.0 78.9 0.000 0.000 1.2294 -
v8-4806cc Cayenne 96.0 83.0 0.000 0.000 1.1566 -
v8-4957cc 928 Alum 100.0 78.9 0.000 0.000 1.2674 -
v8-5.0L 98.0 76.0 0.000 0.000 1.2895 -
v8-5397cc 928 Alum 100.0 85.9 0.000 0.000 1.1641 -
v10-5733cc 93.0 83.0 0.000 0.000 1.1205 -



Saab
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1.8L - Iron 80.5 88.5 0.000 0.000 0.9096 -
I4-1998cc 2.0L - Alum 86.0 86.0 0.000 0.000 1.0000 -
I4-121 1985 cc B204 90.0 78.0 0.000 0.000 1.1538 -
I4-2105cc 2.1L 90.4 82.0 0.000 0.000 1.1024 -
I4-129 2119cc 2.1L 93.0 78.0 0.000 0.000 1.1923 -
I4-2290cc 2.3L B234 90.0 90.0 0.000 0.000 1.0000 -
V6-2792cc 2.8L - Alum 89.0 74.8 0.000 0.000 1.1898 -



Saturn
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-116 1901 cc 3.23 3.54 0.000 0.000 0.9124 -
I4-126 2.1L 3.38 3.50 0.000 0.000 0.9657 -
I4-134 2.2L 3.39 3.72 0.000 0.000 0.9113 -
V6-183 3000 cc 3.38 3.50 0.000 0.000 0.9657 -



Studebaker
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
L-I6-169 - Iron 3.000 4.000 6.375 1.5938 0.7500 -
L-I6-170 - Iron 3.000 4.000 6.375 1.5938 0.7500 -
L-I6-185 - Iron 3.000 4.375 6.375 1.4571 0.6857 -
L-I6-226 - Iron 3.3125 4.375 0.000 0.000 0.7571 -
L-I6-245 - Iron 3.3125 4.750 0.000 0.000 0.6974 -
V8-224 - Iron 3.5625 2.8125 6.625 2.3556 1.2667 4.500
V8-232 - Iron 3.375 3.250 6.625 2.0385 1.0385 4.500
V8-259 - Iron 3.565 3.250 6.625 2.0385 1.0969 4.500
V8-289 - Iron 3.565 3.625 6.625 1.8276 0.9834 4.500
V8-304 - Iron 3.656 3.625 6.625 1.8276 1.0086 4.500
V8-352 - Iron 4.000 3.500 6.7181 1.9195 1.1429 -



Subaru
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I3-998cc 1.0L 78.0 69.6 0.000 0.000 1.1207 -
I3-1190cc 1.2L 78.0 83.0 0.000 0.000 0.9398 -
F4-997cc 1.0L 72.0 60.0 0.000 0.000 1.2000 -
F4-1089cc 1.1L 76.0 60.0 0.000 0.000 1.2667 -
F4-1267cc 1.3L 82.0 60.0 0.000 0.000 1.3667 -
F4-1362cc 1.4L 85.0 60.0 0.000 0.000 1.4167 -
F4-1498cc 1.5L 77.7 79.0 0.000 0.000 0.9835 -
F4-1595cc 1.6L 92.0 60.0 0.000 0.000 1.5333 -
F4-1782cc 1.8L 92.0 67.0 0.000 0.000 1.3731 -
F4-2.0L 1994cc EJ20 92.0 75.0 130.4 1.7387 1.2267 -
F4-1998cc 2.0L Diesel 86.0 86.0 0.000 0.000 1.0000 -
4-2.2L 97.0 75.0 130.4 1.7387 1.2933 -
F4-2.5L 2457cc EJ25 99.5 79.0 130.4 1.6506 1.2595 -
6-2672cc 2.7L 92.0 67.0 0.000 0.000 1.3731 -
6-3.3L 97.0 75.0 0.000 0.000 1.2933 -



Suzuki
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1.3L 74.0 75.5 119.8 1.5868 0.9801 -
I4-1590 cc 75.0 90.0 0.000 0.000 0.8333 -
I4-1995 cc - Alum 84.0 90.0 0.000 0.000 0.9333 -
V6-1998 cc 78.0 69.7 0.000 0.000 1.1191 -
V6-2494 cc - Alum 84.0 75.0 0.000 0.000 1.1200 -
V6-2.7L - Alum 87.9 74.9 0.000 0.000 1.1736 -



Toyota
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1166 cc 75.0 66.0 0.0 0.000 1.1364 -
I4-1290 cc 75.0 73.0 0.0 0.000 1.0274 -
I4-1295.6 cc 76.0 71.4 0.0 0.000 1.0644 -
I4-1296 cc 73.0 77.4 0.0 0.000 0.9432 -
I4-1332 cc 74.0 77.4 0.0 0.000 0.9561 -
I4-1457 cc 73.0 87.0 0.0 0.000 0.8391 -
I4-1463 cc 81.0 71.0 122.0 1.7183 1.1408 -
I4-1.5L - Alum 74.9 84.6 0.0 0.000 0.8853 -
I4-1497 cc 74.0 87.0 0.0 0.000 0.8506 -
I4-1587 cc 4A-GEU 81.0 77.0 122.0 1.5844 1.0519 -
I4-1588 cc 2tc 85.0 70.0 123.0 1.7571 1.2143 -
I4-1762 cc 7afe 81.0 85.5 132.5 1.5497 0.9474 -
I4-1770 cc 3tc 85.0 78.0 123 1.5769 1.0897 -
I4-1781 cc 80.5 87.5 0.0 0.000 0.9200 -
I4-1794 cc 1ZZFE - Alum 79.0 91.5 146.65 1.6027 0.8634 87.5
I4-1796 cc 82.0 85.0 137.9 1.6224 0.9647 -
I4-1796 cc ZZ-FE - Alum 82.0 85.1 138.0 1.6216 0.9636 87.5
I4-1796 cc 2ZZ-GE 82.0 85.0 140.15 1.6488 0.9647 87.5
I4-1941 cc 89.0 78.0 122.8 1.5744 1.1410 -
I6-1988 cc 75.0 75.0 0.0 0.000 1.0000 -
I4 2.0L - 1998 cc 3SGE 86.0 86.0 138.0 1.6047 1.0000 -
I4-2.0l cc 86.5 86.0 142.0 1.6512 1.0058 -
I4-2165 cc 88.0 89.0 148.0 1.6629 0.9888 -
I4-2166 cc 5SFE 87.1 90.9 138.0 1.5182 0.9582 -
I4-2190 cc 20R 88.5 89.0 148.0 1.6629 0.9944 -
I4-2.4L 5S-FE - Alum 88.4 96.0 0.000 0.000 0.9208 -
I4-2367 cc 22R/22RE 92.0 89.0 148.0 1.6629 1.0337 -
I4-2.4L RZ-FE - Iron 95.0 85.9 0.000 0.000 1.1059 -
I4-2694 cc RZ-FE - Iron 95.0 95.0 146.95 1.5468 1.0000 -
I4-2883 cc 101.6 88.9 139.7 1.5714 1.1429 -
V6-1993 cc 78.0 69.5 0.000 0.000 1.1223 -
V6-2508 cc 87.5 69.5 0.000 0.000 1.2590 -
V6-2658 cc 87.5 82.0 0.000 0.000 1.0671 -
6-2954 cc - 7MGTE 83.0 91.0 152.0 1.6703 0.9121 -
V6-2958 cc 3.0L 87.5 82.0 0.000 0.000 1.0671 -
V6-3.0L 1MZ-FE - Alum 87.5 83.1 0.000 0.000 1.0529 105.5
I6-3.0L 2JE-GE - Alum 86.1 86.1 142.0 1.6492 1.0000 -
6-2997 cc 86.0 86.0 142.0 1.6512 1.0000 -
V6-3.3L 3MZ - Alum 92.0 83.0 0.000 0.000 1.1084 105.5
V6-3378 cc 5YZ-FE - Iron 93.5 82.0 148.0 1.8049 1.1402 -
V6-3378 cc 95.5 81.4 0.000 0.000 1.1732 -
V6-4.0L - Iron 94.0 95.0 0.000 0.000 0.9895 -
V8-4.0L 1UZ-FE 87.5 82.5 146.0 1.7697 1.0606 105.41
V8-4.3L 3UZ-FE - Alum 91.0 82.5 146.0 1.7697 1.1030 105.41
V8-4.7L 242-FE - Iron 94.0 84.0 146.0 1.7381 1.1190 105.41



Volvo
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
I4-1773cc 84.0 80.0 0.000 0.000 1.0500 -
I4-1948cc 1.9L - Alum 83.0 90.0 0.000 0.000 0.9222 -
I4-1991cc 89.0 80.0 0.000 0.000 1.1125 -
I4-2127cc 2.1L 92.0 80.0 0.000 0.000 1.1500 -
I5-2319cc 2.3L - Alum 81.0 90.0 0.000 0.000 0.9000 -
I5-2435cc 2.4L - Alum 83.0 90.0 0.000 0.000 0.9222 -
I5-2.5L - Alum 83.0 93.2 0.000 0.000 0.8906 -
I6-2380cc 2.4L 81.0 77.0 0.000 0.000 1.0519 -
I6-2473cc 2.5L 81.0 80.0 0.000 0.000 1.0125 -
I6-2922cc 2.9L - Alum 83.0 90.0 0.000 0.000 0.9222 -
I6-3.0L - Alum 83.0 90.0 0.000 0.000 0.9222 -
I6-2979cc 3.0L 88.9 80.0 0.000 0.000 1.1113 -
I6-3192cc 3.2L 84.0 96.0 0.000 0.000 0.8750 -
v8-4414cc 4.4L 94.0 79.5 0.000 0.000 1.1824 -



VW
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
4-985cc 70.0 64.0 129.250 2.0195 1.0938 -
4-1131cc 75.0 64.0 129.250 2.0195 1.1719 -
4-1192cc 77.0 64.0 129.250 2.0195 1.2031 -
F4-1285cc 77.0 69.0 137.000 1.9855 1.1159 112
F4-1493cc 1.5L 83.0 69.0 137.000 1.9855 1.2029 112
F4-1585cc 85.5 69.0 137.000 1.9855 1.2391 112
4-1679cc 90.0 66.0 127.000 1.9242 1.3636 124.5
4-1793cc 93.0 66.0 127.000 1.9242 1.4091 124.5
4-1971cc 94.0 71.0 127.000 1.7887 1.3239 -
I4-104.7 1715.6 cc 1.7L 79.5 86.4 136.0 1.5741 0.9201 -
I4-108.7 1.8L EA827 - Iron 81.0 86.4 144.0 1.6667 0.9375 88.0
I4-108.7 1.8L 81.0 86.4 136.0 1.5741 0.9375 88.0
I4-115.7 1896cc 1.9L EA086 - Iron 79.5 95.5 172.0 1.8010 0.8325 -
I4-1984cc 2.0L EA827 - Iron 82.6 92.7 0.000 0.000 0.8910 -
4-121 1984cc 2.0L 9a 16v 82.5 92.8 144.0 1.5517 0.8890 -
4-121 1984cc 2.0L aba 16v - 8v 82.5 92.8 159.0 1.7134 0.8890 -
V6-2.7L - Iron 81.0 86.4 0.000 0.000 0.9375 -
6-2.8L 81.3 89.4 0.000 0.000 0.9094 -
V6-2.8L - Iron 82.5 86.4 0.000 0.000 0.9549 -
V6-170.4 2.8L - Iron 81.0 90.3 164.0 1.8162 0.8970 88.0
V6-3.0L - Iron 82.5 92.8 0.000 0.000 0.8890 -
V6-3952cc 4.0L 96.0 91.0 0.000 0.000 1.0549 -
W8-4.0L - Alum 81.0 90.4 0.000 0.000 0.8960 -
V8-4163cc 4.2L 84.5 92.8 0.000 0.000 0.9106 -
V8-4.2L - Alum 84.5 93.0 0.000 0.000 0.9086 -




Motorcycle - ATV - Snowmobile - Etc.

Arctic Cat
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-250cc 70.0 65.0 0.000 0.000 1.0769
2-431cc 65.0 65.0 0.000 0.000 1.0000
2-436cc 68.0 60.0 0.000 0.000 1.1333
2-438cc 66.5 63.0 0.000 0.000 1.0556
2-497cc 71.0 62.7 0.000 0.000 1.1324
2-499cc 70.0 65.0 0.000 0.000 1.0769
2-499cc 71.0 63.0 0.000 0.000 1.1270
2-529cc 72.0 65.0 0.000 0.000 1.1077
2-550cc 73.4 65.0 0.000 0.000 1.1292
2-581cc 75.4 65.0 0.000 0.000 1.1600
2-599cc 78.0 62.7 0.000 0.000 1.2440
2-599cc 73.8 70.0 0.000 0.000 1.0543
2-639cc 75.7 71.0 0.000 0.000 1.0662
2-650cc 78.0 68.0 0.000 0.000 1.1471
2-698cc 79.7 70.0 0.000 0.000 1.1386
2-699cc 81.0 68.0 0.000 0.000 1.1912
2-785cc 81.0 76.0 0.000 0.000 1.0658
2-794cc 85.0 70.0 0.000 0.000 1.2143
2-862cc 85.0 76.0 0.000 0.000 1.1184
2-1000cc 90.3 78.0 0.000 0.000 1.1577
3-594cc 66.5 57.0 0.000 0.000 1.1667
3-794cc 72.0 65.0 0.000 0.000 1.1077
3-895cc 76.5 65.0 0.000 0.000 1.1769
3-1000cc 81.0 64.6 0.000 0.000 1.2539



BMW
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-247 cc 68.0 68.0 0.000 0.000 1.0000
2-473 cc 70.0 61.5 0.000 0.000 1.1382
F2-494 cc 68.0 68.0 0.000 0.000 1.0000
2-498 cc 67.0 70.6 0.000 0.000 0.9490
2-594 cc 72.0 73.0 0.000 0.000 0.9863
2-599 cc 73.5 70.6 0.000 0.000 1.0411
2-745 cc 70.0 78.0 0.000 0.000 0.8974
2-650 cc 82.0 61.5 0.000 0.000 1.3333
1-652 cc 100.0 83.0 0.000 0.000 1.2048
2-745 cc 78.0 78.0 0.000 0.000 1.0000
2-746 cc 82.0 70.6 0.000 0.000 1.1615
2-797 cc 84.8 70.6 0.000 0.000 1.2011
2-898 cc 90.0 70.6 0.000 0.000 1.2748
2-980 cc 94.0 70.6 0.000 0.000 1.3314
F2-1085 cc 99.0 70.5 0.000 0.000 1.4043
F2-1130 cc 101.0 70.5 0.000 0.000 1.4326
F2-1170 cc 101.0 73.0 0.000 0.000 1.3836
I4-1171 cc 70.5 75.0 0.000 0.000 0.9400
4-1157 cc 79.0 59.0 0.000 0.000 1.3390



Ducati
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
2- 45.65 ci - 748.1 cc 88.0 61.5 0.000 0.000 1.4309
2- 52.75 ci - 864.4 cc 86.0 74.4 0.000 0.000 1.1559
2- 54.21 ci - 888.3 cc 94.0 64.0 0.000 0.000 1.4688
2- 60.87 ci - 997.5 cc 100.0 63.5 124.0 1.9528 1.5748



Harley-Davidson
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
45 1929-73 45.1 ci 739 cc 2.745 3.8125 7.4375 1.9508 0.7200
K 1952-69 45.1 ci 739 cc 2.745 3.8125 7.4375 1.9508 0.7200
KH 1954-56 54.0 ci 885 cc 2.745 4.5625 7.4375 1.6301 0.6016
KR "Low Boy" 1968-69 45.1 ci 739 cc 2.745 3.8125 6.4375 1.6885 0.7200
Iron Sportster 1957-71 53.9 ci 883 cc 3.000 3.8125 7.4375 1.9508 0.7869
Iron Sportster 1972-85 60.8 ci 996 cc 3.1875 3.8125 7.4375 1.9508 0.8361
X-750 1972-2011 45.8 ci 750 cc 3.125 2.9835 6.438 2.1579 1.0474
XR1000 1983-84 60.8 ci 996 cc 3.1875 3.8125 6.926 1.8167 0.8361
Evo Sportster 1986-* 53.9 ci 883 cc 3.000 3.8125 6.926 1.8167 0.7869
Evo Sportster 1986-87 67.2 ci 1101 cc 3.35 3.8125 6.926 1.8167 0.8787
Evo Sportster 1988-* 73.3 ci 1201 cc 3.498 3.8125 6.926 1.8167 0.9175
EL 1936-52 60.3 ci 988 cc 3.3125 3.500 7.46875 2.1339 0.9464
U 1937-48 73.8 ci 1209 cc 3.3125 4.28125 7.90625 1.8467 0.7737
UH 1937-41 78.7 ci 1290 cc 3.421875 4.28125 7.90625 1.8467 0.7993
74OHV 1941-83 73.7 ci 1208 cc 3.4375 3.96875 7.4375 1.8740 0.8661
80OHV 1978-* 81.7 ci 1339 cc 3.498 4.250 7.4375 1.7500 0.8231
V-Rod 69.0 ci 1131 cc 3.940 2.830 0.000 0.000 1.3922
87.7 ci 1438 cc 3.625 4.250 0.000 0.000 0.8529
Twin Cam 88.4 ci 1448 cc 3.750 4.000 7.660 1.9150 0.9375
95.4 ci 1564 cc 3.625 4.625 0.000 0.000 0.7838
100.5 ci 1647 cc 4.000 4.000 0.000 0.000 1.0000
105.6 ci 1730 cc 3.8125 4.625 0.000 0.000 0.8243
106.0 ci 1736 cc 3.927 4.375 7.667 1.7525 0.8976
106.4 ci 1743.5 cc 4.250 3.75 7.44 1.9840 1.1333
106.8 ci 1750 cc 4.000 4.250 7.44 1.7506 0.9412
112.75 ci 1847.6 cc 4.375 3.75 7.44 1.9840 1.1667
113.1 ci 1853 cc 4.000 4.500 0.000 0.000 0.8889
119.3 ci 1954.7 cc 4.5 3.75 8.0 2.1333 1.2000
120.6 ci 1976 cc 4.250 4.250 8.0 1.8824 1.0000
124.8 ci 2046 cc 4.250 4.400 0.000 0.000 0.9659
127.7 ci 2092 cc 4.250 4.500 0.000 0.000 0.9444
131.2 ci 2150 cc 4.25 4.625 8.5 1.8378 0.9189
143.14 ci 2345.6 cc 4.5 4.5 8.0 1.7778 1.0000



Honda
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
1-84.7 cc-2c 47.5 47.8 0.000 0.000 0.9937 -
1-97.2 cc 50.0 49.5 0.000 0.000 1.0101 -
1-121.9 cc 56.0 49.5 0.000 0.000 1.1313 -
1-125 cc-2c 54.0 54.5 0.000 0.000 0.9908 -
1-156.8 cc 63.5 49.5 0.000 0.000 1.2828 -
1-195 cc GX200 2.679 2.118 3.303 1.5595 1.2649 -
1-195 cc 65.5 57.8 0.000 0.000 1.1332 -
1-197.7 cc 66.0 57.8 0.000 0.000 1.1419 -
1-229 cc 68.5 62.2 0.000 0.000 1.1013 -
1-244.3 cc 72.0 60.0 0.000 0.000 1.2000 -
1-246.3 cc-2c 66.0 72.0 0.000 0.000 0.9167 -
1-247.4 cc-2c 70.0 64.4 0.000 0.000 1.0870 -
1-248.6 cc 74.0 57.8 0.000 0.000 1.2803 -
1-249.3 cc-2c 66.4 72.0 0.000 0.000 0.9222 -
1-249.4 cc 78.0 52.2 0.000 0.000 1.4943 -
4-250 cc 48.5 33.8 0.000 0.000 1.4349 -
1-349.5 cc 79.0 71.3 0.000 0.000 1.1080 -
1-340 cc 84.0 61.3 0.000 0.000 1.3703 -
1-350 cc 84.0 63.15 0.000 0.000 1.3302 -
1-397 cc 85.0 70.0 0.000 0.000 1.2143 -
4-399 cc 55.0 42.0 0.000 0.000 1.3095 -
1-435.5 cc 89.0 70.0 0.000 0.000 1.2714 -
1-449.5 cc 96.0 62.1 0.000 0.000 1.5459 -
1-451.8 cc 87.0 76.0 0.000 0.000 1.1447 -
1-456.2 cc 89.2 73.0 0.000 0.000 1.2219 -
1-491 cc-2c 89.0 79.0 0.000 0.000 1.1266 -
1-499 cc 92.0 75.0 0.000 0.000 1.2267 -
1-591 cc 97.0 80.0 134.000 1.6750 1.2125 -
I4-599 cc 67.0 42.5 0.000 0.000 1.5765 -
1-628.3 cc 100.0 60.0 0.000 0.000 1.6667 -
1-649 cc 100.0 82.6 140.000 1.6949 1.2107 -
V4-782 cc 72.0 48.0 0.000 0.000 1.5000 -
4-929 cc 74.0 54.0 0.000 0.000 1.3704 81.0
4-998 cc 77.0 53.6 0.000 0.000 1.4366 -
4-1261 cc 78.0 66.0 0.000 0.000 1.1818 -



Kawasaki
2-Stroke
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
1-124.6 cc 56.0 50.6 0.000 0.000 1.1067 -
1-124.8 cc 54.0 54.5 0.000 0.000 0.9908 -
1-249.3 cc 66.4 72.0 0.000 0.000 0.9222 -
1-249.75 cc 67.4 70.0 0.000 0.000 0.9629 -
1-249.76 cc 70.0 64.9 0.000 0.000 1.0786 -
I3-499 cc 60.0 58.8 0.000 0.000 1.0204 -
I3-748 cc 71.0 63.0 0.000 0.000 1.1270 -
4-Stroke
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio Bore Spacing
1-215 cc 67.0 61.0 0.000 0.000 1.0984 -
1-249 cc 74.0 58.0 0.000 0.000 1.2759 -
1-249.6 cc 77.0 53.6 0.000 0.000 1.4366 -
1-250.0 cc 75.0 56.6 0.000 0.000 1.3251 -
1-290 cc 76.0 64.0 0.000 0.000 1.1875 -
1-294.4 cc 76.0 64.9 0.000 0.000 1.1710 -
2-435.8 cc 68.0 60.0 0.000 0.000 1.1333 -
1-449.5 cc 96.0 62.1 0.000 0.000 1.5459 -
2-475.1 cc 71.0 60.0 0.000 0.000 1.1833 -
2-530.1 cc 75.0 60.0 0.000 0.000 1.2500 -
2-544.4 cc 76.0 60.0 0.000 0.000 1.2667 -
2-743.9 cc 80.0 74.0 0.000 0.000 1.0811 -
2-781.6 cc 82.0 74.0 0.000 0.000 1.1081 -
3-891.5 cc 73.0 71.0 0.000 0.000 1.0282 -
4-899 cc 75.0 50.9 0.000 0.000 1.4735 -
3-1070.7 cc 80.0 71.0 0.000 0.000 1.1268 -
3-1176.2 cc 80.0 78.0 0.000 0.000 1.0256 -
4-1199 cc 83.0 55.4 0.000 0.000 1.4982 85.4
4-1299 cc Muzzy Crank ZX-12 83.0 60.0 0.000 0.000 1.3833 85.4
4-1375 cc Muzzy ZX-12 85.4 60.0 0.000 0.000 1.4233 85.4
4-1427 cc Muzzy Block / Crank PSB ZX-12 87.0 60.0 0.000 0.000 1.4500 -
4-1484 cc Muzzy Block / Crank ZX-12 87.0 62.4 0.000 0.000 1.3942 -



KTM
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-49 cc-2c 39.5 40.0 0.000 0.000 0.9875
1-50 cc-2c 39.5 40.8 0.000 0.000 0.9681
1-65 cc-2c 45.0 40.8 0.000 0.000 1.1029
1-124.8 cc-2c 54.0 54.5 0.000 0.000 0.9908
1-193 cc-2c 64.0 60.0 0.000 0.000 1.0667
1-249.3 cc-2c 66.4 72.0 0.000 0.000 0.9222
1-249.6 cc 75.0 56.5 0.000 0.000 1.3274
1-297.2 cc-2c 72.0 73.0 0.000 0.000 0.9863
1-447.92 cc 89.0 72.0 0.000 0.000 1.2361
1-510.35 cc 95.0 72.0 0.000 0.000 1.3194



MAC
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-3.49cc 21 16.17 16.98 31.0 1.8257 0.9523
1-7.48cc 45 21.2 21.1 39.0 1.8483 1.0047
1-10.95cc 67 24.1 24.0 43.2 1.8000 1.0042
1-13.74cc 84 27.0 24.0 43.2 1.8000 1.1250



Polaris
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
2-600 cc-2c 77.24 64.0 0.000 0.000 1.2069
3-647.1 cc 65.0 65.0 0.000 0.000 1.0000
2-701 cc-2c 81.0 68.0 0.000 0.000 1.1912
2-750 cc 85.0 66.0 0.000 0.000 1.2879
2-777 cc-2c 84.0 70.0 0.000 0.000 1.2000



Sea-Doo
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
2-782 cc-2c 82.0 74.0 0.000 0.000 1.1081
2-951 cc-2c 88.0 78.2 0.000 0.000 1.1253



Ski-Doo
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-248.4cc 72.0 61.0 0.000 0.000 1.1803
2-368.3cc 62.0 61.0 0.000 0.000 1.0164
2-436.6cc 67.5 61.0 0.000 0.000 1.1066
2-436.7cc 65.0 65.8 0.000 0.000 0.9878
2-462.8cc 69.5 61.0 0.000 0.000 1.1393
2-496.7cc 72.0 61.0 0.000 0.000 1.1803
2-499.2cc 69.5 65.8 0.000 0.000 1.0562
2-521.2cc 72.0 64.0 0.000 0.000 1.1250
2-580.7cc 76.0 64.0 0.000 0.000 1.1875
2-594.4cc 72.0 73.0 0.000 0.000 0.9863
2-597.0cc 76.0 65.8 0.000 0.000 1.1550
3-597.4cc 64.5 61.0 0.000 0.000 1.0574
2-617.0cc 76.0 68.0 0.000 0.000 1.1176
2-669.0cc 78.0 70.0 0.000 0.000 1.1143
3-669.2cc 69.75 61.0 0.000 0.000 1.1434
2-697.6cc 78.0 73.0 0.000 0.000 1.0685
3-773.9cc 69.5 68.0 0.000 0.000 1.0221
3-796.3cc 70.5 68.0 0.000 0.000 1.0368
2-799.5cc 82.0 75.7 0.000 0.000 1.0832
2-997.5cc 88.0 82.0 0.000 0.000 1.0732



Suzuki
2-Stroke
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-49.9 cc 41.0 37.8 0.000 0.000 1.0847
1-60.4 cc 43.0 41.6 0.000 0.000 1.0337
1-64.7 cc 44.5 41.6 0.000 0.000 1.0697
1-79.2 cc 49.0 42.0 0.000 0.000 1.1667
1-79.5 cc 46.5 46.8 0.000 0.000 0.9936
1-82.5 cc 50.0 42.0 0.000 0.000 1.1905
1-82.9 cc 47.5 46.8 0.000 0.000 1.0150
1-83.0 cc 49.0 44.0 0.000 0.000 1.1136
1-84.7 cc 48.0 46.8 0.000 0.000 1.0256
1-98.2 cc 50.0 50.0 0.000 0.000 1.0000
1-99.1 cc 52.5 45.8 0.000 0.000 1.1463
1-99.4 cc 52.0 46.8 0.000 0.000 1.1111
1-123.2 cc 56.0 50.0 0.000 0.000 1.1200
1-123.7 cc 54.0 54.0 0.000 0.000 1.0000
1-124.8 cc 54.0 54.5 0.000 0.000 0.9908
1-172.1 cc 62.0 57.0 0.000 0.000 1.0877
1-183.4 cc 64.0 57.0 0.000 0.000 1.1228
1-246.3 cc 70.0 64.0 0.000 0.000 1.0938
1-246.8 cc 67.0 70.0 0.000 0.000 0.9571
2-249.3 cc 56.0 50.6 0.000 0.000 1.1067
1-249.3 cc 66.4 72.0 0.000 0.000 0.9222
1-249.4 cc 70.0 64.8 0.000 0.000 1.0802
1-499.6 cc 86.0 86.0 0.000 0.000 1.0000
4-Stroke
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-111.6 cc 53.0 50.6 0.000 0.000 1.0474
1-124.5 cc 57.0 48.8 0.000 0.000 1.1680
1-147.5 cc 57.0 57.8 0.000 0.000 0.9862
1-229.2 cc 66.0 67.0 0.000 0.000 0.9851
1-248.4 cc 72.0 61.0 0.000 0.000 1.1803
1-249.4 cc 73.0 59.6 0.000 0.000 1.2248
1-249.6 cc 77.0 53.6 0.000 0.000 1.4366
1-280.1 cc 68.5 76.0 0.000 0.000 0.9013
1-299.6 cc 80.0 59.6 0.000 0.000 1.3423
1-348.0 cc 79.0 71.0 0.000 0.000 1.1127
1-349.0 cc 79.0 71.2 0.000 0.000 1.1096
1-398.2 cc 90.0 62.6 0.000 0.000 1.4377
1-439.1 cc 94.5 62.6 0.000 0.000 1.5096
1-441.7 cc 89.0 71.0 0.000 0.000 1.2535
1-449.8 cc 95.5 62.8 0.000 0.000 1.5207
1-493 cc 87.5 82.0 0.000 0.000 1.0671
1-589.9 cc 94.0 85.0 0.000 0.000 1.1059
4-599.4 cc 67.0 42.5 0.000 0.000 1.5765
4-599.6 cc 62.6 48.7 0.000 0.000 1.2854
4-599.8 cc 65.5 44.5 0.000 0.000 1.4719
V2-635 cc 81.0 61.6 0.000 0.000 1.3149
1-640.8 cc 95.0 90.4 0.000 0.000 1.0509
2-645.2 cc 81.0 62.6 0.000 0.000 1.2939
1-652 cc 94.0 94.0 0.000 0.000 1.0000
2-697.1 cc 82.0 66.0 0.000 0.000 1.2424
4-747.4 cc 67.0 53.0 0.000 0.000 1.2642
4-749.2 cc 72.0 46.0 0.000 0.000 1.5652
4-749.9 cc 70.0 48.7 0.000 0.000 1.4374
4-750.0 cc 73.0 44.8 0.000 0.000 1.6295
4-795.4 cc 67.0 56.4 0.000 0.000 1.1879
4-988 cc 73.0 59.0 0.000 0.000 1.2373
V2-996 cc 98.0 66.0 0.000 0.000 1.4848
4-997.5 cc 70.0 64.8 0.000 0.000 1.0802
4-998.6 cc 73.4 59.0 0.000 0.000 1.2441
4-1070.6 cc 76.0 59.0 0.000 0.000 1.2881
4-1073.7 cc 72.0 65.93 0.000 0.000 1.0921
4-1074.5 cc 75.5 60.0 0.000 0.000 1.2583
4-1127.1 cc 78.0 58.97 0.000 0.000 1.3227
4-1134.7 cc 74.0 65.96 0.000 0.000 1.1219
4-1157 cc 79.0 59.0 0.000 0.000 1.3390
4-1298.6 cc 81.0 63.0 0.000 0.000 1.2857
4-1340 cc 81.0 65.0 0.000 0.000 1.2462
4-1496.5 cc Pro Stock 85.0 65.93 0.000 0.000 1.2892
4-1531.9 cc Pro Stock 86.0 65.93 0.000 0.000 1.3044



Triumph
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
2-790 cc 86.0 68.0 0.000 0.000 1.2647



Yamaha
2-Stroke
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-49.0 cc 40.0 39.0 0.000 0.000 1.0256
1-49.3 cc 40.0 39.2 0.000 0.000 1.0204
1-72.9 cc 47.0 42.0 0.000 0.000 1.1190
1-79.4 cc 46.0 47.8 0.000 0.000 0.9623
1-79.9 cc 49.0 42.0 0.000 0.000 1.1667
1-82.5 cc 48.0 45.6 0.000 0.000 1.0526
1-82.9 cc 47.0 47.8 0.000 0.000 0.9833
1-84.7 cc 47.5 47.8 0.000 0.000 0.9937
1-96.8 cc 52.0 45.6 0.000 0.000 1.1404
1-98.2 cc 50.0 50.0 0.000 0.000 1.0000
1-103.5 cc 52.5 47.8 0.000 0.000 1.0983
1-123.2 cc 56.0 50.0 0.000 0.000 1.1200
1-124.3 cc 53.8 54.7 0.000 0.000 0.9835
1-124.8 cc 54.0 54.5 0.000 0.000 0.9908
1-124.9 cc 56.0 50.7 0.000 0.000 1.1045
1-171.1 cc 66.0 50.0 0.000 0.000 1.3200
1-176.4 cc 64.5 54.0 0.000 0.000 1.1944
1-195.0 cc 66.0 57.0 0.000 0.000 1.1579
1-199.8 cc 66.8 57.0 0.000 0.000 1.1719
1-246.3 cc 70.0 64.0 0.000 0.000 1.0938
1-247.0 cc 68.0 68.0 0.000 0.000 1.0000
1-249.3 cc 66.4 72.0 0.000 0.000 0.9222
2-347 cc 64.0 54.0 0.000 0.000 1.1852
1-397 cc 85.0 70.0 0.000 0.000 1.2143
1-465 cc 85.0 82.0 0.000 0.000 1.0366
1-487 cc 87.0 82.0 0.000 0.000 1.0610
4-Stroke
Cubic Inches Bore Stroke Rod Length Rod / Stroke Ratio Bore / Stroke Ratio
1-89.9 cc 47.0 51.8 0.000 0.000 0.9073
1-123.7 cc 54.0 54.0 0.000 0.000 1.0000
1-124.5 cc 57.0 48.8 0.000 0.000 1.1680
1-223.2 cc 70.0 58.0 0.000 0.000 1.2069
1-249.4 cc 73.0 54.0 0.000 0.000 1.3519
1-249.6c 77.0 53.6 0.000 0.000 1.4366
1-250.7 cc 75.5 56.0 0.000 0.000 1.3482
1-346.2 cc 86.0 59.6 0.000 0.000 1.4430
1-348 cc 83.0 64.5 0.000 0.000 1.2868
1-399.5 cc 92.0 60.1 0.000 0.000 1.5308
1-426.0 cc 95.0 60.1 0.000 0.000 1.5807
2-433 cc 68.0 59.6 0.000 0.000 1.1409
2-438 cc 66.0 64.0 0.000 0.000 1.0313
2-439 cc 68.5 59.6 0.000 0.000 1.1493
1-449.4 cc 95.0 63.4 0.000 0.000 1.4984
2-485 cc 72.0 59.6 0.000 0.000 1.2081
2-494 cc 68.0 68.0 0.000 0.000 1.0000
2-499.2 cc 77.0 53.6 0.000 0.000 1.4366
1-499.4 cc 87.0 84.0 0.000 0.000 1.0357
1-534.4 cc 90.0 84.0 0.000 0.000 1.0714
2-536 cc 73.0 64.0 0.000 0.000 1.1406
2-569 cc 73.0 68.0 0.000 0.000 1.0735
3-593 cc 65.0 59.6 0.000 0.000 1.0906
1-595.4 cc 95.0 84.0 0.000 0.000 1.1310
2-598 cc 74.8 68.0 0.000 0.000 1.1000
4-598.2 cc 59.0 54.7 0.000 0.000 1.0786
I4-600.7 cc 65.5 44.5 0.000 0.000 1.4719
1-659.7 cc 100.0 84.0 0.000 0.000 1.1905
3-698 cc 70.5 59.6 0.000 0.000 1.1829
V2-42.67 ci - 700 cc 80.2 69.2 155.5 2.2471 1.1590
V2-45.70 ci - 750 cc 83.0 69.2 155.5 2.2471 1.1994
V2-56.14 ci - 920 cc 92.0 69.2 155.5 2.2471 1.3295
3-973 cc 79.0 66.2 0.000 0.000 1.1934
V2-59.87 ci - 981 cc 95.0 69.2 155.5 2.2471 1.3728
4-988.7 cc 75.0 55.95 0.000 0.000 1.3405
I4-998 cc 74.0 58.0 110.5 1.9052 1.2759
4-998.4 cc 77.0 53.6 0.000 0.000 1.4366
4-1000 cc 75.5 55.85 0.000 0.000 1.3518
V2-64.88 ci - 1063 cc 95.0 75.0 155.5 2.0733 1.2667
4-1097 cc 74.0 63.75 0.000 0.000 1.1608
4-1101 cc 71.5 68.55 0.000 0.000 1.0430
V4-1198 cc 76.0 66.0 0.000 0.000 1.1515
4-1294 cc 79.0 65.98 0.000 0.000 1.1973
V4-1294 cc 79.0 66.0 0.000 0.000 1.1970
I4-1298 cc 79.0 66.2 0.000 0.000 1.1934
V2-97.76 ci - 1602 cc 95.0 113.0 0.000 0.000 0.8407
V2-101.92 ci - 1670 cc 97.0 113.0 0.000 0.000 0.8584



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