I can't find the mr. Gasket ones I've been wanting, Jeg's and Summit dont even have them now. So I guess the impy gasket is the closest one. But my compression is already on the low side in my 383, 10.5:1 with the 5716. I'm torn between modifying my 1094 gaskets, or going with the impala ss. Anyone know the bore size?

 

THE GM 12553160 head gasket has a 4.100 bore and is .028 thick after compress .038 before,just got a set from spdc2000.

 

I think the 5716 gaskets have a bore of 4.100" also. So in other words there's like .003" of compressed thickness difference. I guess I might as well get the impy gaskets then, even though my quench will go from .052" to .055". I'm still tempted to use the 1094's to get a .041" quench, though I'm worried about seepage and blowing a gasket.

 

I would use the felpros. impy gaskets will likely blow under any detonation