Piston and Ring - Pro 2681 Series - 4.005 in Bore - 0.048 in x 0.06 in x 0.119 in Ring Grooves - Minus 4.50 cc - Small Block Chevy - Kit Vendor SPORTSMAN RACING PRODUCTS MPN 324864 Truck Freight NO GM SBC 604 CT Crate Engine 3.480 Stroke 5.7 Rod Length 1.560
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