| Industry | Automotive |
|---|---|
| Product Market | Domestic |
| Product Category | Dual Springs |
| Product Type | Engine Valve Spring |
| Outer Diameter – Outer Valve Spring | 1.324 IN |
| Inner Diameter – Outer Valve Spring | 0.950 IN |
| Inner Diameter – Inner Valve Spring | 0.680 IN |
| Installed Height | 1.800 IN |
| Installed Load / Height (Valve Closed) | 160 LB @ 1.800 IN |
| Open Height | |
| Open Load | |
| Open Load / Height (Valve Open) | 510 LB @ 1.100 IN |
| Valve Spring Rate | 500 PS |
| Max Coil Bind | 1.000 IN |
| Max Valve Lift | 0.750 IN |
| Recommended Valve Spring Retainer – 300 Series | R335 |
| Recommended Valve Spring Retainer – 400 Series | R435, R450 |
| Recommended Valve Spring Retainer – 500 Series | R550 |
| Recommended Valve Spring Retainer – 600 Series | R635, R650 |
| Recommended Valve Spring Seat | S129, S135, S136 |
| Valve Spring Series | RPM Series |
| Valve Spring Type | Dual |
| Primary Market | Circle Track|Street Performance |
