; Machined from the highest grade aircraft billet aluminum for maximum durability; Deep precision machined grooves ensure belt retention even during extreme changes in engine RPM; When crankshaft and water pump pulleys are used together, water pump speed is reduced by approximately 30%; Hard-coat anodized for extended life; Uses 36° x 17/32 wide belt
- Billet Aluminum
- single groove
- For BBC
- Short water pump
- Deep precision machined grooves ensure belt retention
- 30% less water pump speed when crankshaft & water pump pulleys work together
- Hard-coat anodized
- Uses 36° x 17/32 wide belt.