PAC 1223 Dual

PAC 1243-16 1200 Series Racing Dual Valve Springs

$388.00 Set of 16, Free Shipping

PAC Racing Springs Model 1243 is a severe duty valve spring designed for solid roller style valvetrain. Designed for most aftermarket cylinder heads with 1.550 diameter dual springs.

  • 1200 Series Dual Spring
  • 1.55″ OD
  • .812″ ID
  • .700″ Max lift
  • 550 lbs./in. Rate
  • 1.053″ Coil Bind Height
SKU: PAC-1243-16 Category: Tags: , , ,
Part#PAC-1243
Alt Part#PAC-1243-16
DescriptionCircle Track 1200 Series Dual Valve Spring 1.550
Outside Diameter1.55
Outer Spring ID1.136
Middle Spring IDN/A
DamperNo
Inner Spring ID0.812
Install Height1.900
Load at Installed Height240
Spring Open Height1.200
Spring Open Load625
Recommended Valve Lift.700
Spring Rate (lbs/in)550
Coil Bind (max)1.053
Weight5.5 lbs
Dimensions16 × 4 × 3.5 in

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