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Description
Dual Valve Springs from COMP Cams are manufactured from H11 material and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams Dual Valve Springs exceed the expectations of today's engine builders and racers.
Specifications
| Amazon ASIN | B00062YHLA |
|---|---|
| C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles? | Yes |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? | Yes, but must be a race/competition only vehicle. |
| C.A.R.B. Exemption Reason | No impact on pollution output of vehicle. |
| Coil Bind Height | 1.1 in |
| Compatible .570" Guide Diameter Spring Seat | 4774-1 |
| Compatible .630" Guide Diameter Spring Seat | 4775-1 |
| Compatible Retainer | 733-1 |
| Compatible Shims | 4756 |
| Compatible Spring Cup (O.D. Locator) | 4702-1 |
| Damper | Yes |
| Inner Spring Inside Diameter | 0.757 in |
| Number of Springs | 2 |
| Outer Spring Inside Diameter | 1.167 in |
| Outer Spring Outside Diameter | 1.638 in |
| Seat Height | 2 in |
| Seat Pressure | 275 PSI |
| Spring Rate | 637 |
| UPC / GTIN | 00036584280026 |