Allstar Performance Aluminum 2 Groove Chevy Crankshaft Pulley - 4-3/4" Diameter 351012 The Universal Bar Mount provides

The Universal Bar Mount provides multiple mount options for the MAC Helmet Air Pumper

Commonly used with solid front engine mounts

No yoke and low profile design for minimal interference with helmet

1974-1984 Cadillac Fleetwood

Foam can be shaved for a perfect custom fit tailored specifically to you and your helmet

Allstar Performance Aluminum 2 Groove Chevy Crankshaft Pulley - 4-3/4" Diameter 351012 The Universal Bar Mount providesSpecifically 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