It's fairly simple for a reasonably talented wood butcher to fabricate a plywood mockup of the small block engine and use it for trial fitting of mounting points. It's a lot simpler to handle a 20-lb. wooden "block" than even a bare engine block and heads for fabrication purposes.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!