PSI LS, LT1, L83 & LT4 .660" High Lift Valve Springs
PSI LS, LT1, L83 & LT4 .660" High Lift Valve Springs are beehive valve springs designed for high-performance LS, LT1, L83, and LT4 engines, often used in applications with lifts up to 0.660". Optron valvetrain dynamics testing revealed this spring was the best choice to keep heavier replacement valves in control.
Works with LS, LT1,L83 & LT4 with proper hardware.
| Pushrod Applications | ||||||||
| Part Number |
Part Description |
Spring O.D. |
Outer ID |
Seat Pressure |
Open Pressure |
Rate Lbs/in. |
Max Lift |
Coil Bind |
|---|---|---|---|---|---|---|---|---|
| LS 1516 ML | Beehive | 1.290" | 0.640" | 150 lbs @ 1.800 | 420 LBS at 1.140" | 409.0" | 0.660" | 1.080" |
