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) 2010005 Side B is 5/32"

Side B is 5/32"

Fits Holley Model 2300

GM Fullsize Truck 2006-10

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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) 2010005 Side B is 5/32"Product 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