KB Piston - 4.060 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Mopar (Set of 8) BR10045 550" OD and a

550" OD and a

Bed Rail Attachment

5/16 32 Thread

heads and are ideal for drag racing and circle track applications

May be used on 348 engines with valve lifts up to

KB Piston - 4.060 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Mopar (Set of 8) BR10045 550" OD and aProduct Description: Piston KB Series 4. 060 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 5. 00 cc Small Block Mopar 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 accumulator