Motorhome trans?

What i was going to do is have it bored to make a 426 wedge, they have the same stroke, i know pistons are big bucks no matter how you do it, yes the heads on the engine i tossed, so i need to find good heads for it. The heads and water pump system that was on the engine were ugly!!!!!-- engine only has 50,000 miles on it and looks to be in fine shape.

426 wedge, KILLER. If you have a problem finding a set of std heads let me know I have a line on a lot of big block parts at very reasonable prices.