Just wondering if anyone has one of these. I'm now to the point of getting a cam. Been looking at the MS4. My buddy has one in his GTO with a 6.0. I was surprised when he told me that he put it in there with only LT's. I was reading and saw that it will fit in there with no PTV stock. I will be buying a set of WCCH LS3 heads in a couple weeks. Just wondering if anyone already has this done. If I do get the heads in and PTV is a problem, then hopefully I can fix it with a thicker gasket. I really don't want to get into the bottom end yet.

 

I ran the ms3 in my old lq4 - 377/364 through an 80e and 20's. (LT's only) and am running the same cam in my current setup in sig. (basically ls3 heads)

What is it going in? I think I would go with a smaller cam in the 6.0 We put an ms4 in my buddies fbody and it just made a bunch of valvetrain noise and not much power.. Lq4/ported&milled 243's, ls6 intake ect. only put down ~430 through a 6 spd.