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The JE Ultra Series forged piston set for GM Gen III/IV LS engines uses a 4.005 in bore, 4.000 in stroke dome configuration in an eight-cylinder kit tailored for boosted engines. Ultra Series employs Aligned Grain Flow forging for superior strength, plus thermal barrier crown and skirt coatings, lateral gas ports and enhanced pin oiling to limit heat and wear. High-strength Trend wrist pins and American production complete this heavy-duty kit.
JE Pistons Ultra Series GM Gen III/IV LS 4.005in Bore/4in Stroke Set of 8 Pistons
