Lets build a new engine.
How often to you plan on running it at full power? With the 6-71, we are in T/A, X, or R block territory here. Of course head studs are mandatory, and I would be looking at the SCE copper with the embossed Neoprene Printo-Seal gaskets here. I would be considering a Hughes girdle and main stud kit with some Milodon main caps. But I would also be considering one of the 3.79 or 4 inch cranks and some upper end connecting rods like Molnar. Also, what heads are you considering running?