| Brand: | Speedmaster |
| Part Number: | PCE272.1013 |
| Part Type: | Valve Spring |
| Number of Springs Per Valve: | Single |
| Outside Diameter of Outer Spring (in): | 1.550 in. |
| Coil Bind Height (in): | 1.125 in. |
| Damper Spring Included: | Yes |
| Spring Rate (lbs/in): | 135lbs @ 1.900 in. |
| Inside Diameter of Outer Spring (in): | 1.125 in. |
| Inside Diameter of Inner Spring (in): | N/A |
| Valve Spring Style: | Standard |
| Coated: | No |
| Quantity: | Sold as a set of 16 |
| Notes: | Single spring with dampner commonly used in aftermarket aluminum Big Chevy and Big Ford Heads. |