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Forged Pistons for Geo Storm, Isuzu Impulse & Stylus, Asuna Sunfire and Lotus Elan M100

Forged from billet 2618 (non-silicon) billet aluminum. Pistons forged from billet raw material offer ultimate tensile strength and fatigue resistance, and retain a true 100% wrought (extruded) structure throughout. Don't confuse "powerforged" or "budget" forged pistons with premium billet forged pistons!

PISTONS feature:
Hi-tensile forged, not cast, billet material
Proper forging cross-sections
CNC machined working surfaces
Micro-flat Sure Seal ring grooves
Optimized crowns for efficient combustion
Diamond-turned ellipsoidal skirt profile
Ultra close no-rock skirt clearance
Consistent measurements part-to-part

Kits include:
4 Forged pistons
Wrist pins: high carbon, case-hardened
Locks: carbon steel wire or spiral
Total Seal Gapless Rings
High quality matching chrome / nitride steel or moly faced ductile iron ring sets are available separately

Custom compression ratios available!

These forged pistons are for the following cars:
1990-93 Isuzu Impulse RS
1990-93 Isuzu Stylus RS
1991-1993 Lotus Elan M100 (Turbo)

Current turnaround time is ~6 weeks.

$630 USD
Shipping: $10 USD
Prices are for lower 48 US only unless otherwise noted.
Please email for International shipping quote.

Geo Storm isuzu impulse performance parts