Blueprint crate engine

AJ/FormS said
If it was mine, I'd keep the poly (with maybe a 2x4 for the visual) and stick an A500 overdrive under the floor, and something like a SG 3.73/3.91 in the back.

that would be my play as well. i'm a sucker for factory duals on 50's cars.

the poly is strong and could support a nice stroker with a mild cam and make tugboat levels of torque too.