[mikefocke]

Oh for the days when a Model-A engine swap could be done with simple tools at the junkyard. Buddy replaced his engine for $25 which tells you how old I am. Drove it for several years afterwards.

Take a look at the engine and see how much in the way of wiring and hoses are outside the block and heads. Even assuming you had a perfect base (rebuilt block and a rebuilt set of heads), just removing all that stuff and reinstalling it is going to give you a diagnostic headache. Old wires and hoses and fused connectors. Clamps galore.

There is a reason completely rebuilt and reinstalled engines with improved parts cost double what the car is worth. But don't improve the value of the car as much except perhaps to the owner.