| Part# | CT-1580-ML (Single Spring) |
| Alt Part# | CT-1580-ML-16 (Set of 16) |
| Description | PSI Drag Race 1500 Series Dual Valve Spring |
| Outside Diameter | 1.510″ |
| Outer Spring | ID 1.085″ |
| Middle Spring | N/A |
| Inner Spring | ID 0.760″ |
| Install Height | 1.980″ |
| Load at Installed Height | 205 lbs |
| Spring Open Height | 1.180″ |
| Spring Open Load | 705 lbs |
| Max Valve Lift | .800″ |
| Spring Rate (lbs/in) | 625 |
| Retainer Step |
.070″ |
| Coil Bind | 1.110″ |
PSI CT 1580 ML Dual Racing Valve Springs
$698.00 Set of 16, Free Shipping
PSI Performance Springs CT-1580-ML is a severe duty dual valve spring designed for solid roller valvetrain with added features. This model includes Max Life (ML) multi-step surface enhancement process to increase spring endurance. Designed for aftermarket cylinder heads with 1.510″ OD Dual Springs.
Type: Dual
Spring OD: 1.510″
Inner ID: 1.085″
Seat: 205 lbs @ 1.980″
Open: 705 lbs @ 1.180″
Max Lift: .800″
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