Contact seller
I have a new set of 16 PAC dual valve springs with damper, part # PAC-1243, matching Trick Flow 10 degree titanium retainers and Comp Cams 10 degree locks part # 630-16. All parts are new and unused. I purchased these new and have changed direction on my next build so I am selling these parts.
Here is some information from PAC on the springs.
PAC Racing 1200 Series circle track valve springs are great for providing your valve train with optimal performance. Select them when you're upgrading camshafts or doing engine rebuilds. The 1200 series use a premium alloy that outperforms automotive industry standards; and PAC Racing processes the alloy to aerospace shot-peening standards to achieve superior fatigue dependability. This ensures that the springs maintain the load needed to perform lap-after-lap.
Brand: PAC Racing Springs
Part Number: PAC-1243-16
# of Springs Dual
Maximum Lift (in.): 0.700 in.
Outside Diameter (in.): 1.550 in.
Coil Bind Height (in.): 1.100 in.
Spring Rate (lbs./in.): 550 lbs./in.
Inside Diam. of Outer Spring (in.): 1.136 in.
Inside Diam. of Inner Spring (in.): 0.812 in.
Installed Height (in.): 1.900 in.
Seat Pressure 240 lbs.
Open Height (in.)(application): 1.200 in.
Open Pressure (lbs.): 625 lbs.
Price for these new springs, retainers and locks is $550 plus $30 shipping.
PM me with any questions.
Here is some information from PAC on the springs.
PAC Racing 1200 Series circle track valve springs are great for providing your valve train with optimal performance. Select them when you're upgrading camshafts or doing engine rebuilds. The 1200 series use a premium alloy that outperforms automotive industry standards; and PAC Racing processes the alloy to aerospace shot-peening standards to achieve superior fatigue dependability. This ensures that the springs maintain the load needed to perform lap-after-lap.
Brand: PAC Racing Springs
Part Number: PAC-1243-16
# of Springs Dual
Maximum Lift (in.): 0.700 in.
Outside Diameter (in.): 1.550 in.
Coil Bind Height (in.): 1.100 in.
Spring Rate (lbs./in.): 550 lbs./in.
Inside Diam. of Outer Spring (in.): 1.136 in.
Inside Diam. of Inner Spring (in.): 0.812 in.
Installed Height (in.): 1.900 in.
Seat Pressure 240 lbs.
Open Height (in.)(application): 1.200 in.
Open Pressure (lbs.): 625 lbs.
Price for these new springs, retainers and locks is $550 plus $30 shipping.
PM me with any questions.
Last edited:















