I put a 56 DeSoto 330 Hemi into a 52 Dodge B3B pickup. I sold the truck to a buddy who is down and AZ and drives the crap out of it.
In my case I installed a 88 Dodge Dakota front clip and made the motor mounts using some generic spool mounts I bought from Speedway motors. I adapted the Hemi to a SB 727 which worked ok. For headers I used Sanderson shorty headers.
In my case I ended up cutting out the center of the firewall and mounting the Hemi rearward and then fabricating covers. This worked out well as it moved the center of gravity back (those engines are not light) but it is tight on the sides. In the rear I made an access panel so that I can get to the distributor easily.
I used a GM water pump with the adapter from Hotheads, a modified SB mopar distributor and electronic ignition. The Dakota steering was a manual rack and pinion so I just left that because there really wasn't a good place to mount a PS pump on the engine. If I were to do it now I would go electric for sure. The truck was not hard to steer really except at really low speeds and with wider front tires.
You should go to the HAMB (forum) as they have a lot of old school 1st Gen hemi guys there.
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