[Nova4301]

I have short blocked my new stocker project engine and I was curious on people's thoughts on what might be too tight for piston to head clearance. I checked pitson to valve clearance and I have plenty (.150+). But, I figured that I want as thin of a head gasket that is legal and that I can run clearance-wise.

I am probably going with either a GM# 3995633 (which I believe is about .017-.020 compressed) or a Fel-Pro 7733SH1 which is about the same. In another thread I asked what the bore sizes of each were...I believe a person would want the thinnest and smallest bore (respective to the engine bore) size gasket that they could get (that is legal). Any thoughts would be appreciated...I am trying to learn as I build.