I own a couple '32 Chevy's, fitting engine mounts is a snap. You can get some from a junk fyard and cut to fit or fabricate them, I have done both ways and each one is a fine way. There's plenty of room for the 250 in th early chassis and will fit under the hood too. Just be creative and you'll have no trouble. Transmission mounts usually will bolt to the stock crossmember with a small adaptor plate.