In the near future, I plan on swapping out a stock Model A engine on my '30 tudor for a Buick 231 engine. The car is presently in storage, so I can't get started just yet, but I am in a planning stage at present. I will be adding a th 350 automatic tranny to the engine and will be mounting this all in the stock 1930 Ford frame. I'll do the boxing of the frame and use the mounts for the 231. The wishbones will be split if necessary.

Since I have only swapped out engines that did not require such mods in the past (Chevy for a Chevy, Buick for a Buick, etc.), then it appears that there must be some mounting point that is basically a universal one. Will the firewall have to be cut or can I just get by with the V6 placement without having to cut in or replacing the firewall metal? How do you locate the best placement of the mounts on the stock Model A frame for this application? I don't want the motor to sit exceedingly far back from the radiator, but I want a good balance of where it should be located. Is there a rule of thumb, or universal mounting location?

Hope this question makes sense. Most all of the motors I have ever swapped out have been a direct fit and required no fabrication to make them work. This project won't be like that and I want to know what to expect and how to do it right on the first go. Thanks for any tips and suggestions.
Huey