PAC Racing RPM Series Ovate Wire Beehive Valve Spring
Top 0.650 in. / Bottom 0.906 in. ID – Top 1.034 in. / Bottom 1.290 in. OD – 1.800 in. installed Height – 0.650 in. Max Valve Lift
Your Price: $20.26
SKU: PAC-1276X
In Stock
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PAC Racing’s Street Performance RPM Series Beehive Valve Springs are constructed using our signature PACaloy super clean wire and are heat-treated in-house for precision spring rates and improved strength. They also receive a multi-peen process, polishing, and a Nano-Peen™ proprietary surface treatment for service life optimization. Applications include GM Gen III/IV LS, Ford 2V and 4V Mod Motors, Ford Coyote, Big Block Chevy, Ford 5.4L GT500 & Cobra Jet, Chrysler 6.4L Gen III Hemi, GM Gen IV LS7, and Ford Godzilla 7.3L.
- Built using our signature PACaloy super clean wire to ensure strength and durability
- In-house heat-treating for precise spring rates and increased strength
- Multi-peen process to optimize service life
- Polishing to improve operating cycles
- Nano-Peen™ proprietary surface treatment
GTIN: 00193564530189
| Outer Diameter – Outer Valve Spring | Top 1.034 IN / Bottom 1.290 IN |
|---|---|
| Inner Diameter – Outer Valve Spring | Top 0.650 IN / Bottom 0.906 IN |
| Installed Height | 1.800 IN |
| Installed Load | 150 PS |
| Open Height | 1.140 IN |
| Open Load | 420 PS |
| Open Load / Height (Valve Open) | 420 LB @ 1.140 IN |
| Valve Spring Rate | 410 PS |
| Max Coil Bind | 1.070 IN |
| Max Valve Lift | 0.650 IN |
| Recommended Valve Spring Retainer – 300 Series | R310, R311, R363 |
| Recommended Valve Spring Retainer – 500 Series | R510, R511 |
| Recommended Valve Spring Seat | S111 |
| Valve Spring Series | RPM Series |
| Valve Spring Type | Round Wire Beehive |
| Primary Market | Circle Track|Drag Race|Street Performance |