Aftermarket cylinder head debate - who's the best
by ProPower engines ยป Wed Aug 29, 2012 5:00 pm
Depending on how much difference you have in the installed heights you can machine the spring seats slightly deeper. That way you can be right on the amount needed using std. thickness shims.
If you are within .005 installed height I would bet the springs will test correctly but to be perfect machine the spring seats the amount needed to use a shim to get it right on. As you mentioned you are short .005 installed height as you mentioned so drop the spring .010 and use a .015 shim.
by ProPower engines ยป Wed Aug 29, 2012 5:00 pmDepending on how much difference you have in the installed heights you can machine the spring seats slightly deeper. That way you can be right on the amount needed using std. thickness shims.
If you are within .005 installed height I would bet the springs will test correctly but to be perfect machine the spring seats the amount needed to use a shim to get it right on. As you mentioned you are short .005 installed height as you mentioned so drop the spring .010 and use a .015 shim.
