| Industry | Automotive |
|---|---|
| Product Market | Domestic |
| Product Category | Hot Rod |
| Product Type | Engine Valve Spring Kit |
| Outer Diameter – Outer Valve Spring | 1.290 IN |
| Inner Diameter – Outer Valve Spring | 0.950 IN |
| Inner Diameter – Inner Valve Spring | 0.694 IN |
| Installed Height | 1.800 IN |
| Installed Load / Height (Valve Closed) | 150 LB @ 1.800 IN |
| Open Height | |
| Open Load | |
| Open Load / Height (Valve Open) | 400 LB @ 1.125 IN |
| Valve Spring Rate | 370 PS |
| Max Coil Bind | 1.010 IN |
| Max Valve Lift | 0.625 IN |
| Recommended Valve Spring Retainer – 300 Series | R335 |
| Recommended Valve Spring Seat | S129, S135 |
| Valve Spring Series | 1900 Series |
| Valve Spring Type | Dual |
| Valve Spring Application | Hot Rod |
| Primary Market | Drag Race|Street Performance |
