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.
For Chevy LS
Specs
- OD : 1.295″
- ID : 0.676″
- Closed Load : 140 @ 1.800″
- Open Load : 385 @ 1.150″
- Spring Type : Dual
- Coil Bind : 1.100