Welded j heads/w2

Can one of you tell the story behind these heads a little more?
I quit fakebook almost a decade ago, talk about life tracking, stealing, meddling, divorce, death... I reccomend to everyone I care about...to not use fakebook.

Are they clay? Painted balzoa? Lol
I actually had a friend send it to me tbh I don’t have a Facebook this is as advanced as I get lol. The person with the heads was asking for info on them lol. So what I figured he got suckered on the heads.
Looks like the kind of work done regularly on 351C exhaust ports back-in-the-the-day. Those had miserable exhausts with a sharp and narrow bend over a water jacket area under the exhaust ports. There were a number of work-arounds with epoxy (eventually would fail), inserts, and welding. It was 100% worth the effort on those heads 'cuz the intake ports were already so darned good for the times.

IDK on these...without results, I'd hesitate to pass judgement one way or the other.
I thought they may have cut into a water jacket. That’s a lot of material. I’m going to ask my dad he’s been building engines and basically have abodys for ever.
This is what happens in the winter time. Idle hands are the devils work. I hope it was all just extra material hanging around collecting dust he decided to just to burn time away in his snowy winter wonderland garage.
I mean we can hope but I’m pretty sure the guy wanted to run them lol. My question was why lol had to bring it here tho.