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JE Pistons forged piston kit for air‑cooled Porsche 911 includes six pistons sized for a 3.937 in. bore with an 11.50:1 compression ratio and dome crown. JE applies a proprietary Forged Side Relief design, skirt coating and, where applicable, accumulator grooves to reduce friction and improve ring seal. Each kit includes high‑quality wrist pins, locks and JE Pro Seal rings and is forged and finished in the USA.
JE Pistons Porsche 911 3.6L 100mm Set of 6 Pistons
