Engine Valve Spring
Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what 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.
Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what 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.
| Attributes | |
| Amazon ASIN | B00062YH9M |
| ASIN | B00062YH9M |
| C.A.R.B. E.O. Number | N/A |
| 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. |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Camshaft Type | Hydraulic, Mechanical |
| Coil Bind Height | 1.17, 1.17 |
| Coil Bind Height (in.) | 1.17 |
| Compatible .570" Guide Diameter Spring Seat | 4781-1, 4781-1 |
| Compatible .630" Guide Diameter Spring Seat | 4782-1, 4782-1 |
| Compatible Retainer | 741-1, 741-1 |
| Compatible Shims | 4757, 4757 |
| Compatible Spring Cup (O.D. Locator) | 4700-1, 4700-1 |
| Country of Origin (Primary) | US |
| Damper | Yes, Yes |
| Emission Code | Legal US |
| Harmonized Tariff Code (Schedule B) | 8409914000 |
| Hazardous Material Code | N |
| Inner Spring Inside Diameter | 0.72, 0.72 |
| Inside Diameter | 0.731 in. |
| Inside Diameter (in.) | 0.731 |
| Installed Height (in.) | 1.9 |
| Installed Pressure (lbs.) | 223 |
| Life Cycle Status Code | Available to Order |
| NAFTA Preference Criterion Code | B |
| Number of Springs | 2, 2 |
| Open Height (in.) | 1.25 |
| Open Pressure (lbs.) | 537 |
| Outer Spring Inside Diameter | 1.112, 1.112 |
| Outer Spring Outside Diameter | 1.536, 1.536 |
| Outside Diameter | 1.535 |
| Outside Diameter (in.) | 1.535 |
| Position | N/A |
| SDR Required Flag | N |
| SDS Sheet Number | N/A |
| Seat Height | 1.9, 1.9 |
| Seat Pressure | 210, 210 |
| Spring Rate | 483, 483 |
| Spring Rate (lbs./in.) | 483 |
| Spring Type | Double |
| Warranty Time | 12 |
| GTIN | 00036584270775 |