pittsburghracer, everyone...

Originally Posted by pittsburghracer
...If you stay with the same length valve your geometry kit won’t be affected. Go for it. Personally I would go 2.08 but that’s me.

So strangely enough, I was able to find two Manley valves that literally are a drop-in, well, just about, here is why:

1) CURRENT valve - 2.02", 11702-8, 5.240" long, Severe Duty Pro-Flo

2) ALT_1 - 2.055", 11556-8, 5.240" long, Race Pro-Flo

3) ALT_2 - 2.080", 11574-8, 5.240" long, Race Pro-Flo

Now both ALT_1 & ALT_2 are not a Severe Duty valve material, they are the immediate step-down from that, which is the Race stuff (so says Manley catalog).

This being a street car, i.e. prolonged idle and low-rpm operation, therefore more heat, do I need to worry about the valve materials?

Also, is the idea of tossing a 2.080" valve in there a little crazy - given my intended use? Seems like a tight fit as well, no? Do I need to start looking at de-shrouding the chambers further (they have some light clearancing done rigth now)?