KB Piston Hypereutectic 4.310" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 26.0 cc Metric Quick Disconnect Fittings Does not fir models with

Does not fir models with dual mode exhaust option

The backspacing is 1

1965-1965 GMC PB2500 Series

The finest design of hose ends available

KB Piston Hypereutectic 4.310" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 26.0 cc Metric Quick Disconnect Fittings Does not fir models withProduct Description: Piston KB Series Hypereutectic 4. 310 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 26. 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