KB Hypereutectic Piston 4.290" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 12.0 cc 2010203 uses a diaphragm-controlled

uses a diaphragm-controlled

9 wideband O2 sensors for accurate readings and precise tuning control

Liberally spray the outside of the visor with the cleaner

Tester checks cylinder compression from 0 to 300 PSI and features an air-hold valve to reset gauge

KB Hypereutectic Piston 4.290" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 12.0 cc 2010203 uses a diaphragm-controlledProduct Description: Piston KB Series Hypereutectic 4. 290 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 12. 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