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Speedmaster 40th Anniversary Black and White button down shirt
These pulleys are available in your choice of two finishes
premium-grade 4140 chromoly steel
Fits big block Chevy rectangular port cylinder heads on standard deck blocks
1966-72 (1973 non-CA) passenger cars
Chevy BBC 454 Steel Long Water Pump Lwp 3 Groove Crank Pulley Chrome Speedmaster 40th Anniversary Black andTry using Speedmaster steel crankshaft pulleys to increase horsepower and reduce accessory drag. These pulleys are available in your choice of two finishes. Since Chevrolet has made a variety of pulley diameters, Speedmaster has chosen the most popular diameters for their pulleys. In some instances, the stock accessories may not run at the same speed as originally designed.
