I have a 357 with ZERO miles. Forged TRW pistons (domed tho so cant run em with boost)...1974 block which is one of the strongest year blocks because of higher nickel content and whatnot...
Also got a Fully Forged 408 stroker with less than 1 hour run time, it seriously looks brand new. I have some pics of both...I also have a 306, and a 347 too.