Dual Drag Race Valve Spring

PAC-1361 Dual Drag Race Valve Spring

PAC-1361
Regular price
$41.84
Sale price
$41.84
Quantity must be 1 or more

Drag Race 1300 Series Valve Spring 1.536 Dual - 1.065 lift

Pro-Stock - Top Fuel Dragster - Top Fuel Funny Car - Top Alcohol Funny Car - ProMod

1300 Series Processing Improves Fatigue Life, which enhances the longevity against premature spring failures.  1300 Series processing involves REM polishing, and Nano Peen, a micro shot peening done to the surface. 

All 1300 series springs come with an ID chamfer to improve clearance on the radius of the spring Retainer.

SPRING SPECS

  • 1.536 OD
  • ID Outer- 1.050"
  • ID Inner-0.726"
  • Installed 2.350" @ 377#
  • Open 1.300" @ 1389#
  • Max Lift 1.065
  • Coil Bind- 1.215
  • 964 #/in Rate