Test-proven for 850 racing miles, Endurance Plus springs feature a higher alloy outer spring plus special processing for increased durability. Excellent for use in sprint cars, super modifieds, super late models, road racing, and other race cars running up to 8400 RPM. Sold in sets of 16.
- Valve Spring Style:
- Standard
- Number of Springs Per Valve:
- Dual
- O.D. Outer Spring (in.):
- 1.530 in.
- Coil Bind Height (in.):
- 1.120 in.
- Damper Spring Included:
- Yes
- Spring Rate (lbs/in.):
- 440 lbs./in.
- I.D. of Outer Spring (in.):
- N/A
- I.D. of Inner Spring (in.):
- 0.730 in.
- Valve Springs Coated:
- N/A
- Maximum Valve Lift (in.):
- 0.650 in.
- Retainers Included:
- N/A
- Retainer Material:
- N/A
- Locks Included:
- N/A
- Lock Material:
- N/A
- Valve Stem Seals Included:
- N/A
- Installed Height:
- N/A @ N/A
- Open Height:
- N/A @ N/A
- Quantity:
- Sold as a set of 16.
