KB Hypereutectic Piston 4.350" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 3.5 cc BR40071 Check out Holley's new line

Check out Holley's new line of high-flow throttle bodies

and a meticulous approach to engineering

Dual 3/8 in NPT Ports

1971-1983 Plymouth Scamp

KB Hypereutectic Piston 4.350" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 3.5 cc BR40071 Check out Holley's new lineProduct Description: Piston KB Series Hypereutectic 4. 350 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 3. 50 cc Mopar RB Series 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