KB Hypereutectic SBF 351W D-Cup 2V Piston Set 4.030 Bore -19.5cc 21411510 Polypropylene

Polypropylene

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231 in Long

Using the Centerforce centrifugal weight system (where applicable)

KB Hypereutectic SBF 351W D-Cup 2V Piston Set 4.030 Bore -19.5cc 21411510 PolypropyleneProduct Description: Piston KB Series Hypereutectic 4. 030 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 19. 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