KB Auto Hyper Hypereutectic Piston - 4.125 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 17.00 cc - Big Block Chevy (Set of 8) HX02121 Keep tabs on your truck's

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KB Auto Hyper Hypereutectic Piston - 4.125 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 17.00 cc - Big Block Chevy (Set of 8) HX02121 Keep tabs on your truck'sProduct Description: Piston Auto Hyper Hypereutectic 4. 125 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