I need to put my gt40p heads together so I can install everything on the new fox.. Question is.. I dont know how to install my valve springs.. I mean I know how to install them but I dont know what height they should be at or whether I need to shim them or not.. Ive got Stock GT40P heads E303 cam and 1.72 Roller Rockers And heres the specs on the springs I got.. And these springs do have the staggered retainers for intake and exhaust Sent from my Galaxy S3 using Tapatalk 2!
I could explain it but this has pictures also an I'm a visual person so figured this would be easier COMP Cams® - Sorry...
Wait but wouldnt putting a shim under the spring make the height taller?? Sent from my Galaxy S3 using Tapatalk 2!
Or after the shims are on you measure from the shim to the retainer? Sent from my Galaxy S3 using Tapatalk 2!
You're using the shims to get the springs to the Installed spring height which is 1.775" in your case, you'll need a special tool to accurately measure it but basically you'll measure and shim as needed to get to the specs, this will give the correct spring pressure and will help the springs live longer an function better. Comps website does theirs a little different but since you already have what your specs should be just measure and then if off use shims to compensate for the differences
