| Industry | Automotive |
|---|---|
| Product Market | Domestic |
| Product Category | Circle Track Dual Springs |
| Product Type | Engine Valve Spring |
| Outer Diameter – Outer Valve Spring | 1.550 IN |
| Inner Diameter – Outer Valve Spring | 1.100 IN |
| Inner Diameter – Inner Valve Spring | 0.706 IN |
| Installed Height | 2.000 IN |
| Installed Load / Height (Valve Closed) | 275 LB @ 2.000 IN |
| Open Height | |
| Open Load | |
| Open Load / Height (Valve Open) | 805 LB @ 1.200 IN |
| Valve Spring Rate | 663 PS |
| Max Coil Bind | 1.150 IN |
| Max Valve Lift | 0.800 IN |
| Recommended Valve Spring Retainer – 500 Series | R506, R541 |
| Recommended Valve Spring Retainer – 600 Series | R606, R641, R661 |
| Recommended Valve Spring Seat | S105, S106, S139X |
| Recommended Valve Spring Cup | C204 |
| Valve Spring Series | 1300 Series |
| Valve Spring Type | Dual with Damper |
| Valve Spring Application | Circle Track |
| Primary Market | Circle Track|Drag Race|Street Performance |
