KB Hypereutectic Piston 4.185" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 17.0 cc YA0817G 1 in H x 3

1 in H x 3

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1968-1972 Chevrolet Biscayne CID 427

The 4770 features a 1

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KB Hypereutectic Piston 4.185" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 17.0 cc YA0817G 1 in H x 3Product Description: Piston KB Series Hypereutectic 4. 185 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 17. 00 cc Big Block Chevy Set of 8 Created from a high silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while still being strong enough to withstand high compression and high temperatures. Each piston is engineered with race ready features like high upper compression ring locations, gas