351 Log-style manifold

Jeff,
As mentioned, the key to an epoxy job is the prep. It does need to be V'd out and to get to clean metal. If you just put the JB on top of old, it will not stick.

(BTW, the photos are prior to the "patch" job)

Didn't "V" it out,thought might make worse..cleaned up sandpaper & small wire brush then few even coats of JB Weld.
Still drips a little bit. Now that manifold is off should be able to do a better job. Could touch up, or grind it down and re-do(?).
Will also research brazing further.

Encouraged to hear of "5 year" patch..but what exactly is and how does one do an epoxy patch?

Boat's 90 miles away so can't quite picture the pressure testing process without looking at it. Last fall you'd detailed a more complicated process..I'm a bit lost, is there better detail or a drawing somewhere?

Also there's a craigslist Palmer 302 that was suggested, I've no need for an engine but would that manifold apply & fit right up to a 351 without riser/hose modification?

Also out of curiosity, my engine had been painted at some point and there is some red that shows thru in spots, the Palmer is red, do you know what the original Thermo-Electron color was?

There are old skool guys that are very good at welding cast iron.
Around Atlanta you should find a guy - good luck.

Important to pre-heat, weld, post heat.

I know a guy that pre-heats fluxs, then silver sodiers, post heats
old one of a kind engine blocks. I've driven his 1905 Caddy with a
repaired block.

Whats that big monthly car catalog with the brown cover?

- Hemmings Motor News - you'll find a good guy there.