Post a wanted ad in the classifieds, and check ebay; craigslist.com is also a good local source. Hot Heads.com sells early Hemi parts.
From a long block?? Maybe eBay for a core and Egge or HotHeads for parts and a good machine shop for assy. Pep boys will not stock one ;-)
Hello..These is one on ebay now. try ...270 Red Ram Hemi in ebay motors..It's in S.F. CA. been bored and sonic tested etc.. Duane..