Finally!

It's does look like a 273, and that is the look I went for. I think they are a nice looking engine.
But under the valve covers is a .030 over 68 340 with a 360 crank. Keith Black pistons and a Hughes cam. Opened up magnum heads and toped with a Mopar dual plane intake.
It has a 904 trans with some mild mods and a low gear set. Also has a 2800 stall converter.

Engine 08 (1).jpg

Engine 08 (2).jpg