KB Hypereutectic Piston 4.030" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 6.5 cc 42143 Rated Injector Flow: 80 lb/hr

Rated Injector Flow: 80 lb/hr

1955-1970 Chevrolet Bel Air

nail shift points and improve launch consistency

4-cylinders require one (1) coil pack

LS3 Low-Ram

KB Hypereutectic Piston 4.030" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 6.5 cc 42143 Rated Injector Flow: 80 lb/hrProduct Description: Piston KB Series Hypereutectic 4. 030 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 6. 50 cc Small Block Ford 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