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JE Pistons forged piston set for Big Block Chevrolet V8 applications — a set of eight .420‑dome pistons optimized for performance assemblies. Made in the USA from 2618 aluminum, the pistons use Forged Side Relief to cut friction and reduce skirt mass; accumulator grooves and skirt coatings are used in applicable configurations to help ring seal and lower wear. Specified for a 4.500 in. bore with 37.0 cc volume and 1.645 pin spacing.
JE Pistons BBC .420 DOME Set of 8 Pistons
