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 : 1.180"
- ID : 0.868"
- Closed Load : 75 @ 1.900"
- Open Load : 150 @ 1.400"
- Spring Type : Single
- Coil Bind : 1.368"