PAC Racing 1200 Series Drag Race Valve Springs
Upgrade your engine's performance with PAC Racing 1200 Series drag race valve springs. When you're installing new camshafts or rebuilding your engine, these are the springs to choose. Made with a premium alloy that surpasses automotive industry standards, these springs are processed by PAC Racing to aerospace shot-peening standards for exceptional fatigue dependability. Rest assured that these springs will maintain the necessary load for peak performance in the most challenging situations.
Part Number: PAC-1231X-16
Valve Spring Style:
Standard
Number of Springs Per Valve:
Single
Maximum Valve Lift (in.):
0.550 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.083 in.
Coil Bind Height (in.):
0.952 in.
Damper Spring Included:
No
Spring Rate (lbs/in.):
291 lbs./in.
Inside Diameter of Outer Spring (in.):
0.636 in./0.720 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Set of 16.
Fitment:
2005 Ford Mustang Shelby GT500
2006 Ford Mustang Shelby GT500
2007 Ford Mustang Shelby GT500
2008 Ford Mustang Shelby GT500
2009 Ford Mustang Shelby GT500
2010 Ford Mustang Shelby GT500
2011 Ford Mustang Shelby GT500
2012 Ford Mustang Shelby GT500
2005 Ford Mustang Cobra
2006 Ford Mustang Cobra
2007 Ford Mustang Cobra
2008 Ford Mustang Cobra
2009 Ford Mustang Cobra
2010 Ford Mustang Cobra
2011 Ford Mustang Cobra
2012 Ford Mustang Cobra
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
