KB Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc DX2650K FF XR292 R-10

FF XR292 R-10

Use only stock ratio rocker arms

5 to 3 in ID

Solid enough to endure the roughest rides

KB Hypereutectic Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.0 cc DX2650K FF XR292 R-10Product Description: Piston KB Series Hypereutectic 4. 060 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 7. 00 cc Small 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