Head gasket question

[Al]

I'm looking at doing a head swap on a stock bore 350. I'm wondering if there are issues with using a 4.100 bore gasket instead of a 4.000 bore gasket. Also I'm looking at using a thin gasket to raise the compression and am wondering what the effect would be if using a 4.100 bore gasket with a compressed thickness of .015 instead of a 4.00 bore gasket with a .028 compressed thickness. I'm thinking tha extra volume allowed by the extra bore size might negate any gain found with the .013 thinner gasket.

 

[SSedan64]

4.00" Bore X 3.48" Stroke.
76cc Head, 6cc 4VR Piston.
.015"/4.100" Bore, .025" Deck Ht. = 8.931:1 Cr.
Gasket Volume (cubic in.) = 0.198

W/.028"/4.000" Bore = 8.715:1 Cr.
Gasket Volume (cubic in.) = 0.352

The Thickness creates much more Volume difference than the Diameter.
Cr. caluculator >> http://www.kb-silvolite.com/calc.php?action=comp

Not a huge difference, little more than 2 tenths of 1 Point.
Also the Metal or Coated Metal Shim gaskets requires a much smoother/flatter Head/Block surface than Composite type gaskets do.

 

[Al]

Cool. Thanks for the response.