I used Fel-pro 60052 gaskets on my Fentons with no ring cut for donuts and flat flanges on the pipe. It has a crush ring built into the gasket. The flat gasket would probably work if everything is aligned right.

My problem was shoddy workmanship by the muffler shop that did my pipes. After a couple of hundred miles my gaskets blew out. Since my fix I have put about 25,000 miles on it with no problems. If interested you can read about the problems and the fix here.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.