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Vehicle Info NeededPAC RACING SPRINGSPART NUMBER: 278-PAC-1275X
RPM Series Beehive Single Valve Spring
$2100
Ships on 11/17/2026
Lowest Price GuaranteeBeehive Valve Springs
- RPM Series Beehive Single Valve Spring
- Installed Height: 140 [email protected] in.
- Open: 405 [email protected] in.
- Coil Bind: 1.215 in.
- Rate: 408 lbs.
- OD: Top 1.040 in./Bottom 1.290 in.
- ID: Top .650 in./Bottom .906 in.
- Max Lift: .650 in.
PAC Racing 278-PAC-1275X RPM Series Beehive Single Valve Spring:
This beehive valve spring from PAC Racing is compatible with GM LS, LT, Mopar Gen III Hemi, and engines with a spring pocket that will accept a 1.290-inch diameter spring. Check with the cam manufacturer for the required spring to reach the full potential of your camshaft.
Beehive Valve Springs That Withstand High RPMs
High-RPM racing engines to street-driven muscle cars, PAC RPM Series Beehive Valve Springs will let your engine rev to its full potential.
Part TypeValve Spring
Product LinePAC Racing Springs RPM Series Beehive Valve Springs
BrandPAC RACING SPRINGS
Package Height1.75
Package Width3.65
Package Length4.05
Weight0.185 PG
Part CategoryPerformance Parts
Installed Height (In)1.950 in.
Open Height (In)1.300 in.
Open Pressure (Lbs.)405
Installed Pressure (Lbs.)140
QuantitySold individually
Spring Rate (Lbs./In.)408
Coil Bind Height (In)1.215 in.
Valve Spring StyleBeehive
Vendor Part NumberPAC-1275X
Package Qty1
Package TypeEA
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