Originally Posted by F-BIRD'88
The comp 924 spring is rated @1.88" installed height (125LBS) If you install at 1.86" or more you'll be good to go. Installed seat pressure will be around 130lbs. If your lowest installed height is too low you can buy +.050" valve locks to adjust the installed height. If one is just a little too low try different retainers and lock pairs. There is some variance.
your response make sense. but check the latest comp cams published specs on the 924's. they say the installed height is to be 1.900, NOT 1.88". also I didnt know that you can buy spring retainers with +/- .050" height change. that will fix my problem. Only thing is, I just checked one of my retainer/valve/lock assemblies. If I get the +.050" locks, the retainer will be placed higher on the valve stem, flush with the top of the valve stem. Typically the top of the stem is a bit higher than the retainer to the rocker won't contact it. I think this will be ok though because I have roller rockers and it does not appear the roller rocker will contact the top surface of the retainer. Do you understand?
If I get the +.050" locks and shim the spring pocket .015" that should put me almost exactly at 1.900 installed height as comp cams suggests. Only downside like I said is the spring retainer gets moved up higher near the top of the valve stem.