Product Description
PAC-1231X springs for GT500 & Cobra Jet exhaust valves
- OD Large End 1.083
- ID Large End 0.720
- ID Small End 0.636
- Install Height 1.575
- Load at Installed Height 120
- Spring Open Height 1.025
- Spring Open Load 280
- Recommended Valve Lift 0.550
- Spring Rate (lbs/in) 291.000
- Mass (grams) 41.40
- Coil Bind (max) 0.952
