KB Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.0 cc H778C42XXL Designed as a drop-in upgrade

Designed as a drop-in upgrade for factory roller '87+ Chevrolet Small Block

1-3/4 x 27 Spline

69 oz Squeeze Tube

Machined Anodized Aluminum Mass Airflow Mounting Plate

Power-Deploying

KB Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.0 cc H778C42XXL Designed as a drop-in upgradeProduct Description: Piston KB Series Hypereutectic 4. 280 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 6. 00 cc Mopar B 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