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JE Pistons forged eight-piece kit for 5.4 4V Modular engines, set to a 9.5:1 compression ratio. It uses a 3.622 in bore and -19.9 cc piston volume sized for the application. Forged in the USA from 2618 aluminum, JE’s Forged Side Relief forging reduces skirt width and friction. Accumulator grooves and optional skirt coatings enhance ring sealing and wear resistance, supporting reliable performance in both street and competition engines.
JE Pistons 5.4 4V MODULAR 9.5:1 Set of 8 Pistons
