How do the cylinder bores look? Have they rusted at all? I'd say put some oil on the bores/rings and turn it over by hand a few times, build it, pre-oil it and fire it up.

1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)