Dual Valve Spring Kit for the 3500/3900 VVT engines. Includes the Comp 26925 spring set of 12, matching retainers, spring locators, and seals. Optionally, the Manley keepers can be added if you would like a machined set vs the stock stamped steel keepers. They are not required but are noticably better quality.
- I.D.of Outer Dia:.958"
- I.D.of Inner Dia:.680"
- Spring Rate: 400 lbs/in
- Seat Load: 141 lbs @ 1.810''
- Open Load: 405 lbs @ 1.150''
- Coil Bind: 1.100''
- Spring Damper: No
- 12/pkg
- Spring retainers included with our kit