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The Wiseco Professional Series forged piston set for Chevrolet big‑block engines (4.320 in bore, 1.270 in compression height) provides a complete set of eight pistons intended for heavy to severe duty race builds. These pistons are forged and machined in the USA from 2618 aluminum and are supplied with premium ring provisions. Features include precision ring grooves, an anti‑detonation groove, ArmorGlide skirt coating for seizure resistance, forced pin oiling, and a 0.990 in pin diameter.
Wiseco Chevy Big Block 4.320in Bore 1.270in CH 9.50 CC Piston Set
