KB Hypereutectic Piston 4.125" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 17.0 cc 1530A13 and only then

and only then

1977-1983 Ford F-150

Real-time ECU tuning - HP/Dominator ECUs only

3/8 in Male Hose Barb Outlet

KB Hypereutectic Piston 4.125" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 17.0 cc 1530A13 and only thenProduct Description: Piston KB Series 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