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PAC RPM Beehive Valve Springs, 1.290" O.D, Set of 16 140-328lbs @ 1.800", .600" Lift, 1.115" Coil Bind (PAC-1218X-16) PAC-1218X-16

PAC RPM Beehive Valve Springs, 1.290" O.D, Set of 16 140-328lbs @ 1.800", .600" Lift, 1.115" Coil Bind (PAC-1218X-16)

140-328lbs @ 1.800", .600" Lift, 1.115" Coil Bind
SKU: PAC-1218X-16
$623.70 - $623.70
$623.70
$623.70 - $623.70
$623.70
+ GST
Stock Status: ⚠️ Low stock — contact before purchasing

BEEHIVE VALVE SPRINGS 1.290 OD

140-328lbs @ 1.800", .600" Lift, 1.115" Coil Bind

Part Number: PAC-1218X-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:

Outer Diameter - Outer Valve Spring: 1.055" Top / 1.290" Bottom
Inner Diameter - Inner Valve Spring: 0.650" Top / 0.885" Bottom
Installed Height: 1.800"
Installed Load / Height (Valve Closed): 140 LB @ 1.800"
Open Height: 1.200"
Open Load: 318 PS
Open Load / Height (Valve Open): 328 LB @ 1.200"
Valve Spring Rate: 313 PS
Max Coil Bind: 1.140"
Max Valve Lift: 0.600"
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: Ovate Wire Beehive
Primary Market: Circle Track, Street Performance