KB Hypereutectic Piston 4.160" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.0 cc 931072 Single pattern/overlap reduced for restricted

Single pattern/overlap reduced for restricted intake classes (Late model stock) 1/4 mile track/long rod applications

GM A-Body 1973-83

Designed For High Deceleration Rates

Hardened and black oxide finished

1-1/2" Diameter Chromed steel case

KB Hypereutectic Piston 4.160" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.0 cc 931072 Single pattern/overlap reduced for restrictedProduct Description: Piston KB Series Hypereutectic 4. 160 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 6. 00 cc Pontiac V8 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