Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The JE Ultra Series 8‑cylinder forged piston kit for GM Gen III/IV LS with a 4.065 in bore and 4.00 in stroke provides a robust choice for high-power domestic V8 builds. Proprietary Aligned Grain Flow forging boosts tensile strength for extreme cylinder pressures. Thermal barrier crown coating, skirt coating, lateral gas ports, optimized pin oiling and high-strength Trend wrist pins reduce heat, wear and noise. Made in the USA.
JE Pistons Ultra Series GM Gen III/IV LS 4.065in Bore/4in Stroke Set of 8 Pistons
