ForrestB

I know they stock them on americanmuscle.com and their prices always seem to be competitive.

I'm curious about this too. I was considering putting stage 2 comp cams in. I'm n/a, have a fair amount of bolt on work done, running 3.73's. Aside from replacing springs, is there any other mods that I really should or must have done before putting in stage 2 cams?

mrtstang

Other than maticulously degreeing them in (ptv clearence will be extremely tight) and a full exhaust including long tubes, there's not much else needed or benificial.

ForrestB

PTV is piston-to-valve correct? Do you just mean that the installation is very tight or is there actual adjustments that have to be made to get them in?

I've heard about the MHS Stage 2 Cams on these forums. Are they quality cams (never heard of that brand anywhere else...though I haven't really done much looking) and would it be a solid upgrade without PTV clearance issues rather than the CMC's?

If I'm going to drop the money on Cams I want to get the most out of it, so I'm definitely leaning towards Stage 2. I'm worried (probably because I have very little idea what it means..) about the PTV clearance issue..

mrtstang

Yes PTV = piston to valve. The Comp stage 2's will be very tight. Too tight to be considered safe by many. The way to get safe clearence is by retarding the intake centerline. Unfortunatly when you do that you're loosing power too. Most popular stage 2 cams (Comp, CMS, Hitech, etc) have 0.005"-0.015" clearence. Most expert engine builders like a minimum of 0.035" or more...a lot prefering 0.070".

MHS cams are gound by Bullet Racing, and they are among the very best in quality. They have grinds that will clear safely with no ptv clearence issues. Their stage 2 n/a cams are the best choice for the stock PI heads.

Call Nick at MHS, and decide for yourself. It was a real eye opener for me.

http://www.modularheadshop.com/Cams.htm

ForrestB

Thanks a lot!

grogan

what ive heard about stage 1 and 2s are that stage 1s will go into our stock heads without any ptv issues. stage 2s need to be checked and may not fit without changing the pistons.

mrtstang

There's a lot of truth to that. Usually what needs to happen (with the stage 2's) is the intake centerline needs to be retarted (which costs power) or the pistons need to be notched.

2kStangGT08

Ok so if I were to get the new wedge trickflow heads with cms stage 2 cam, would I have any ptv issues?

mrtstang

No you should be fine then.

2kStangGT08

Kool kool kool