Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The JE Ultra Series forged piston set for GM Gen III/IV LS engines features a 4.000 in bore and 4.000 in stroke in an eight-cylinder kit tuned for power-adder builds. JE's proprietary Aligned Grain Flow forging increases tensile strength, while thermal barrier crown coating, skirt coating, lateral gas ports and enhanced pin oiling preserve ring seal and reduce friction. Premium Trend wrist pins and US manufacturing complete the package.
JE Pistons Ultra Series GM Gen III/IV LS 4in Bore/4in Stroke Set of 8 Pistons
