Thanks for your feedback. Here’s my exhaust flange and the pipe without and with the donut. I think you are right that gasket isn’t going to do anything and might interfere with the donut. Might be why the last donut broke.
I’ll just snug my bolts up like my VW buddies say: “Gütntight”
1951 GMC with positive ground. Engine is a ‘54 Chevy passenger car (Serial Number 0024472F54Z) with a ‘56 head (casting code on top of head 3836848 GM 4), Casting Code (on passenger side on side of head B56 848 850)
