Checking valve spring heights.

MOPAROFFICIAL said
We differ there, it's okay.

With what i do id rather have a little more than a little less. He will be at about 125-130 psi pn the exhaust and only 100 maybe on the intake. Id shim the intake springs, leave the exhaust. The cam isnt fast, itll be better the not have springs eating into the heads from doing the boogaloo off the retainers at 5000 rpms. Besides... the springs will lose about 7 psi after some rum time ...as well as set more as they seat and wear, now imagine that 100 turning into the 90lb or less spring you just replaced. If it doesnt coil bind, run it. The tightest is 1.57? I bet you have more, are yoy putting 100 lbs against that retainer?

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Thank you for the information.

Thank you espically for the above graph. That has a TON of good info I was looking for, (such as the spring pressure at height info).

But I think coil bind will be a problem.

1.560 was our shortest height.

Coil bind is at 1.100

That puts us at .460

Our valve lift on the exhaust is .466.

That's no bueno.

I'm pretty happy with where the intake height came out. One .015 shim on one spring and they are all within spitting distance in my opinion.

Thank you again for all the info. That chart is great. Thanks. Eric