| Industry | Automotive |
|---|---|
| Product Market | Domestic |
| Product Category | Circle Track Dual Springs |
| Product Type | Engine Valve Spring Kit |
| Outer Diameter – Outer Valve Spring | 1.550 IN |
| Inner Diameter – Outer Valve Spring | 1.100 IN |
| Inner Diameter – Inner Valve Spring | 0.788 IN |
| Installed Height | 2.000 IN |
| Installed Load / Height (Valve Closed) | 250 LB @ 2.000 IN |
| Open Height | |
| Open Load | |
| Open Load / Height (Valve Open) | 765 LB @ 1.200 IN |
| Valve Spring Rate | 644 PS |
| Max Coil Bind | 1.150 IN |
| Max Valve Lift | 0.800 IN |
| Recommended Valve Spring Retainer – 400 Series | R405 |
| Recommended Valve Spring Retainer – 500 Series | R505, R556 |
| Recommended Valve Spring Seat | S103, S104 |
| Recommended Valve Spring Cup | C204 |
| Valve Spring Series | 1300 Series |
| Valve Spring Type | Dual |
| Valve Spring Application | Circle Track |
| Primary Market | Circle Track|Drag Race|Street Performance |
