Originally Posted by EJ48315
I told my situation to one of the tech guys at summit and he directed me to comp 953-16 springs.
Specs: COMP Cams 953-16
Recommended Camshaft Style Roller solid
Installed Height (in) 1.900 in.
Seat Pressure at Installed Height (lbs) 148 lbs.
Open Height (in) 1.250 in.
Open Pressure (lbs) 455 lbs.
Dual
1.535 in. Outside Diameter
496 lbs./in. Rate
1.085 in. Coil Bind Height
I plan to swap out the .060 cups for .015 shims and use +.050 offset locks which would put my installed hight dead on at 1.9"
First and formost Summit and Jegs, sales people are not good tech people they are there to sell parts.
As mentioned in the engineer's above post compCams will have the answer, but i'll save you the trouble of calling them.
The valve springs recommended for the cam you have is P/N 943-16. these springs have a seat pressure rating of 240 lbs @ 1.900 installed height and a coil bind of 1.180.
I looked up you cam at Comp Cams (12-900-9) (288A-R6) and these were the recommended springs, i then looked the springs and the above #'s came from the spring discription.
Zip.