318 Build For Now
If it was a matching number Hemi for a 1 of 7 convertible...maybe? This really sucks for you, but i'd clean up the van and try to get your money back out of it if possible and move on to another engine. Out of 25,000 members here i doubt you would find 1 that would try to repair that block and use it for themselves. 318's are a dime a dozen and you just need to find a different block. I truly feel for you, but i'm just being realistic.