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GT-40P Question... [Archive] - StangBangerz Forums
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mailman
03-06-2007, 12:03 AM
I brought a set of P heads to a local machine shop to have them cleaned, ported, ground, and assembled and they wanted to sell me new stainless 1-piece valves.
My cam is .490 int, .520 exh, and the new springs are 110 lbs at the seat.

Would I be at risk with the stock valves?

What do people with similar seat pressures do?

I would rather not end up with $700 tied up in a set of mild cast iron heads...
Jeff88coupe
03-06-2007, 08:55 AM
You should be just fine with the stock valves. Just don't run the stock valve springs on them.
mailman
03-06-2007, 07:44 PM
That's what I was hoping to hear! I picked them up. I am not going to let anyone that I am not completely comfortable with play with my toys.

Heads Up is going to do them for me.
NXcoupe
03-07-2007, 09:42 AM
WOW! That'll be pricey. How much that going to set you back?? Stock valves should work fine, Heads up is known for good work, but very pricey.
mailman
03-11-2007, 12:19 PM
Not cheap, but I know I will be happy with the result.
ibstrokin
03-11-2007, 01:24 PM
Heads up has done a couple of sets of heads for me, very good work. BTW rick88coupe has that air filter at his house if you want to pick it up.
mailman
03-13-2007, 10:34 PM
Sweet- PM me a contact number or address and I will get right on it!