I have both the small and big block Chrysler bellhousing drawings, plus the slant 6.
I also have a really fuzzy photo of an AMC V8 blueprint, but it is readable!
I also have some nice drawings of 4 and 5 cylinder Volkswagen TDI Diesels.
PM me your email address and I'll send them to anyone who wants them, I'm not interested it setting up a photo hosting account.
Lastly I'm searching for a BOP Buick/Olds/Pontiac/Cadillac bellhousing bolt pattern drawing.
P.S. I have a spread sheet listing a pattern for the Mercedes OM617 5 cylinder Diesel