I owned when I was a kid a 1953 chevy car.If the trucks are the same,there are two firewall supports that needs to be trimmed of removed if any V8 engine is put in there.The rear end was a torque tube style if memory serves me correctly.

Yeah that car was a learning curve first hot rod with training wheels still in place.I put in a Hemi 354 in it and the wt of 750 lbs engine made the stock front end drop like a rock.It was a chewing gum,baling wire mod that I did get running and drove it only acouple of times.The front wheels bowed out so bad from the wt of the engine it was hard to control.

Sold the old rust bucket to a guy who pulled the engine back out and put it into his Dodge station wagon the right way as a sleeper.