If this helps
We have one Dart Little-M Nodular Iron caps 350 mains line honed, decked to your demension, Blue print bored to your spec, plate honed, lifter bores clearanced, water holes in the decks matched to the head gasket and the freeze plug holes chamfered for 2295.00 and shipped free in the U.S.
We have 4 Little-M blocks with steel caps in stock for 2595.00