KB Hypereutectic Piston - 4.150 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 10.00 cc - Pontiac V8 (Set of 8) Motorcycle & ATV/UTV Gear Part Number: 561-131

Part Number: 561-131

secondary with accelerator pump provisions

6 or 8 cylinder distributor

2 Youth SFI 24

KB Hypereutectic Piston - 4.150 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 10.00 cc - Pontiac V8 (Set of 8) Motorcycle & ATV/UTV Gear Part Number: 561-131Product Description: Piston KB Series Hypereutectic 4. 150 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Plus 10. 00 cc Pontiac V8 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