PAC-1238X

PAC-1238X RPM 1200 Series Racing Dual Valve Springs

$489.80 Set of 16, Free Shipping

PAC Racing Springs Model PAC-1238X is a High Frequency High Lift Dual Spring for Roller Cam Applications. Designed for most aftermarket cylinder heads with 1.274″ diameter dual springs and camshafts with up to .750″ lift.

  • 1200 Series Dual Spring
  • Optimized for aggressive valvetrains
  • High lift abusive applications
  • 1.274″ OD
  • .630″ ID
  • .750″ Max lift
  • 600 lbs./in. Rate
  • .985″ Coil Bind Height
SKU: PAC-1238X-16 Category: Tags: , , ,
Part# PAC-1238X
Alt Part# PAC-1238X-16
Description RPM Series Dual Valve Spring RACE ONLY Spring
Outside Diameter 1.274″
Outer Spring ID 0.900″
Middle Spring ID N/A
Damper No
Inner Spring ID 0.630″
Install Height 1.800″
Load at Installed Height 250
Spring Open Height 1.050
Spring Open Load 700
Recommended Valve Lift .750″
Spring Rate (lbs/in) 600
Coil Bind (max) 0.985″
Weight 3.7 lbs
Dimensions 15.8 × 4 × 3.6 in

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