Allstar Performance Aluminum 2 Groove Chevy Crankshaft Pulley - 4-3/4" Diameter RS003C0101 1-1/8 in x 10 Spline

1-1/8 in x 10 Spline

3/4 in Jam Nut

6 AN Hose to 6 AN Female

Must be used with FIA 8860-2018 ST5 ABP ABP helmets

AN-06 size with a 10 micron cellulose element and black anodize finishTo us

Allstar Performance Aluminum 2 Groove Chevy Crankshaft Pulley - 4-3/4" Diameter RS003C0101 1-1/8 in x 10 SplineSpecifically for short or Corvette water pumps, pulleys work with power steering pump and pulley to provide a ratio within the GM specified RPM range. Race engine RPM differs greatly from street engines. For 30% less water pump speed and reduced weight and inertia, the crankshaft and water pump pulleys are smaller in diameter than standard reduction pulleys. Acceleration capabilities are greatly enhanced. Specialty items for the Shop, Trailer and