3500.00 using your spinning assembly is ridiculous... I just build a 383 for a guy at the shop i work at. He paid 3000

(this is about 1500 in parts, about 400 in machine and balancing work, and about 1100 in labor for the pull of his engine, the install of the new engine, and the labor to assemble it.)

for the engine and all he supplied was the block. We ordered pistons, crank, rods, rings, bearings, gaskets, seals, ect.

That engine now has a centrifugal supercharger on it and is running pretty hot on the street.