Head gasket question

This destined for a 318
What's the difference between the fel pro 17050 "marine" head gaskets and the regular "car" ones?
I know fel pro also has a "heavy duty" head gasket version too. Somehow the "9898" part number ( actually spec'd for the 360 I believe) comes to mind.
Daily driver, small cam, build along the lines of the "very mild 360" thread build.
Are there different holes in the marine gasket that aren't in the pass car gaskets or vise versa? Made from different material...

Read more
Author: volaredon