Summit Racing Pistons & Piston Rings

Forged Pro pistons for BB Chevy 565, 4.600 bore, 1.120 C.H., 4.25 in. stroke, 6.535 in. rod, 40cc Dome open chamber only, 14.2:1@114cc, 13.5@119cc.

Part Number: SUM-BBC540460040

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

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