KB Hypereutectic Piston 4.030" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 19.0 cc 4087ADUBU These heads retain the stock

These heads retain the stock intake port location for compatibility with standard manifolds and headers

Closed Tip

Optional brake probe for Intercomp's Pyrometer

These spring rubbers are made for racing from a special Polyurethane that out lasts rubber 4 to 1

KB Hypereutectic Piston 4.030" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 19.0 cc 4087ADUBU These heads retain the stockProduct Description: Piston KB Series Hypereutectic 4. 030 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves Minus 19. 00 cc Small 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,