QualFast High Performance Springs are manufactured by the industry-leading high performance valve spring factory using the latest materials and manufacturing processes. All QualFast springs are wound using super-clean chrome silicon or new Alpha 1 or 3 alloy wires. Engineered for high performance to give optimum lift and prevent valve float.
Specs
- OD : 1.437″
- ID : 0.796″
- Closed Load : 165 @ 1.800″
- Open Load : 315 @ 1.300″
- Spring Type : Dual
- Coil Bind : 1.100