You are viewing a brand new set of Crow Cam performance valve springs. These Crow Cam performance valve springs will accommodate the extra valve lift and maintain valve train stability and have excellent resistance to extreme heat and pressure experienced in both road and race applications.
These conical performance springs are part of our performance package that can deliver up to 40% power increase for LS1.
| Part # | Install Height | Install Pressure | Pressure at .5 lift | Max lift | Solid lift | Spring retainer | Valve Locks |
| 4231 | 1.780" | 110 | 260 | .0550" | 1.120" | standard | 10701 |