KB Claimer Performance Series SB Chevy Dome Piston Set - 4.030" Bore - 3.480" Stroke - 5.700 Rod Length H776003S FAST has revolutionized the tuning

FAST has revolutionized the tuning industry with the most advanced

The lightweight shell has been aerodynamically tuned for motorcycle riding and is fully ventilated for maximum airflow when you need it most

Fan Kit includes complete mounting kit with a single relay wiring harnessDerale has been the leader in performance cooling for decades

Provides maximum protection available for cams and lifters during initial break-in

KB Claimer Performance Series SB Chevy Dome Piston Set - 4.030" Bore - 3.480" Stroke - 5.700 Rod Length H776003S FAST has revolutionized the tuningAchieve 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.