BTW, here locally on the SF Bay Area Craigslist is a listing for a 428 block and rotating assembly. I have no affiliation and I know nothing, see nothing and hear nothing. $600.
http://sfbay.craigslist.org/nby/pts/1494717212.html
Edit 1: PI intake manifold too:
http://sfbay.craigslist.org/nby/pts/1494185815.html
Edit 2: Looks almost complete 428 for $2,500:
http://sfbay.craigslist.org/nby/pts/1493887110.html