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JE Pistons Ultra Series forged piston kit for GM Gen III/IV LS (4.075in bore, 4.00in stroke) supplies a robust eight‑cylinder option for high-output LS engines. JE's Aligned Grain Flow forging boosts tensile strength and the pistons include thermal barrier crown coating, skirt coating, lateral gas ports and optimized pin oiling to manage heat and wear. Premium wrist pins and US manufacture finish the package.
JE Pistons Ultra Series GM Gen III/IV LS 4.075in Bore/4in Stroke Set of 8 Pistons
