I also wish I could remember half of what Pat M has forgotten!
In any event What I Found is that 396/402 blocks are dirt cheap, original cranks are usually in need of resizing and such sooooooo, They have 454 armasteel cranks brand new for about 275.00 and KB #361 Pistons are supposed to be the correct pin height to build a 433 bbc, granted it wont be the cheapest but, actually if you shop it around the only trick stuff is the pistons I dont know exactly how much but a set of forged 396 pistons are around 250 so an additional 150 for these can probably be coughed up,
It wont be an RPM monster but just think of that torque!!
Has anybody here built one yet? Lemme know!!