KB Hypereutectic Piston 4.030" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 6.5 cc BR20025 But for vehicles running E85

But for vehicles running E85 fuel

Pump Discharge

17 in Stud

and are designed to eliminate the cost of heavy aftermarket cast aluminum bellhousings and cases

090 in Bore

KB Hypereutectic Piston 4.030" Bore 1/16 x 1/16 x 3/16" Ring Grooves - Minus 6.5 cc BR20025 But for vehicles running E85Product 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