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The JE Ultra Series forged piston set for GM Gen III/IV LS engines features a 4.010 in bore and 4.000 in stroke dome configuration in an eight-cylinder kit built for power-adder setups. JE's Aligned Grain Flow forging increases tensile strength; thermal barrier crown and skirt coatings, lateral gas ports and optimized pin oiling help manage temperatures and maintain ring seal. Includes premium Trend wrist pins and is made in the USA.
JE Pistons Ultra Series GM Gen III/IV LS 4.01in Bore/4in Stroke Set of 8 Pistons
