[Jack21]

These things may be fairly common items for folks that service these things. My collecter gaskets are 5" square, have 4, 1 5/8" holes on 2 1/8" centers, and 4, 3/8" holes on 4 1/8" centers for the bolts. I got a coupla extra sets from Classic Roadsters parts. Any of the builders here, Don, DV, Jay, Bob should have them for a coupla bucks.

Yes, a little RTV hi temp red seals 'em up nicely. Works on headers to block gaskets too.