Does anyone sell "crate" motors that are not "408"s?

Gotcha.
That's a nice stock spec rebuilt bottom end .

Performance cam, 2.02 valves, little bit of port work, better pistons and higher compression ratio make the diff in $$$
Like 2oo something hp vs 4oo something hp.lol
Yeah for a stocker rebuild might be OK. Their process seems legit for what the OP mentioned. They do at least fire it up. No dyno.