Hot Rods flattie swap

anyone know if I can squeeze a 53 flathead into my 36 5window without firewall alterations?

 

Yes you can.
It’ll mount to your existing frame mounts and not interfere with your firewall.
You may have to change the pan to clear the steering linkage and install F1 truck pumps to achieve the needed height.
The 8ba side mounted distributor ***y will take up some valuable space between the engine and radiator. Your fan ***y will have to be modified or you could install an electric fan as I did in my 37.