PAC RPM Beehive Valve Springs, 1.290" O.D, Set of 16 - PAC-1275X-16
140-405lbs @ 1.950", .660" Lift, 1.215" Coil Bind
PAC RPM Beehive Valve Springs, 1.290" O.D, Set of 16 - PAC-1275X-16 is not in stock at Fast Lane Spares and will ship direct from supplier
Description
Description
BEEHIVE VALVE SPRINGS 1.290 OD
140-405lbs @ 1.950", .660" Lift, 1.215" Coil Bind
Part Number: PAC-1275X-16
PAC Racing's 1200 Series Ovate Wire Beehive Valve Springs are a budget-minded spring designed for the rigors of street driving with occasional track days in the mix. This is the perfect spring for your street/strip terror. Applications include Ford 2V MO.D Motor, GM Gen III/IV LS, Big Block Chevy, Ford 4V MO.D Motor, Ford 3V MO.D Motor, Chrysler Gen III Hemi, Viper SRT-10, and Small Block Chevy.
- 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
Specifications:
Inner Diameter - Inner Valve Spring: 0.650" Top / 0.906" Bottom
Installed Height: 1.900"
Installed Load / Height (Valve Closed): 140 LB @ 1.900"
Open Height: 1.300"
Open Load: 405 PS
Open Load / Height (Valve Open): 405 LB @ 1.300"
Valve Spring Rate: 408 PS
Max Coil Bind: 1.215"
Max Valve Lift: 0.650"
Recommended Valve Spring Retainer - 300 Series: R310, R311, R363
Recommended Valve Spring Retainer - 400 Series: N/A
Recommended Valve Spring Retainer - 500 Series: R510, R511
Recommended Valve Spring Seat: S111
Recommended Valve Spring Cup: N/A
Valve Spring Series: RPM Series
Valve Spring Type: Round Wire Beehive
Primary Market: Circle Track, Drag Race, Street Performance
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