which underdrive pulley? ASP or SLP
- Extra-tall belt-retention "walls"--no more thrown belts!
- No aftermarket tensioner required
- 100% steel construction
- Lighter than the stock balancer
- Integral timing marks and puller-mounting threads
- Keyed for high-rpm or supercharged applications
- Does not cause false knock retard or erratic power-curve dips
- Includes a new balancer bolt
- This is what you need to know about SLP Pulley
Trending Topics
The Best V8 Stories One Small Block at Time






