I have 3 Leece Neville/Powerline 160 amp Alts. These came out of commercial vehicles when we changed to larger output alts.
$100 OBO 401-847-0659

12v 160amp alternators (http://providence.craigslist.org/pts/1463286674.html)

What frame are they?

I'm confused by what you mean by frame. Material?