KB Piston Hypereutectic 4.250" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 26.0 cc 016437NRSI includes SFI tag

includes SFI tag

Right and Left lateral supports for ribs

Display Data In Fahrenheit or Celsius

1972-1975 GMC Sprint

KB Piston Hypereutectic 4.250" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 26.0 cc 016437NRSI includes SFI tagProduct Description: Piston KB Series Hypereutectic 4. 250 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