KB Claimer Performance Series SB Chevy Flat Top Piston Set - 4.155" Bore - 3.750" Stroke - 5.565" Rod Length 2050081 (1) 3/8" NPT Outlet

(1) 3/8" NPT Outlet

5/16 in OD

Dexterity and Vibration Absorbtion

Rack travels 5

33709 45 Degree fitting

KB Claimer Performance Series SB Chevy Flat Top Piston Set - 4.155" Bore - 3.750" Stroke - 5.565" Rod Length 2050081 (1) 3/8" NPT OutletAchieve maximum performance with high piston ring placement and low thermal conductivity. Top rings operate at higher temps and require slightly larger end gaps (4. 000" bore x . 0065" gap factor = . 026" total end gap). It is recommended that ignition timing be retarded 2 4 degrees. Sold in sets of eight with wrist pins. Coated skirts. Designated as O. E. relacement for engines manufactured in years Truck 69 78, Passenger Car 69 70, Corvette 90 91.