KB Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 2.0 cc Transmission Blankets M6049 B351

M6049 B351

740 in OD Steps

880 in Round Port

Commonly used with solid front engine mounts

1975-1987 Chevrolet P20

KB Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 2.0 cc Transmission Blankets M6049 B351Product Description: Piston KB Series Hypereutectic 4. 030 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 2. 00 cc Ford Cleveland Modified 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