I am looking at a buying a full gasket set. The head gasket is composite and .60. I'm puttin 317 heads on my 5.3. with what compressin ratio will I be with stock heads and this gasket? I am running boost so I need low. Also they want an extra $50 for the 6.0 gead gasket vs. the 5.3. Is there really a difference between the two? I was told that all gen III parts are a direct swap, if thats the case then I would be waisting my $50.

 

If you use the 6.0 heads you need the 6.0 gaskets. The 5.3 will not work.