Currently in process of building a 400 stroker to 512. I went 512 because it was same price for all displacements and only live once.
I used the 440 source kit with dished Pistons and trickflow 240 heads which will make 10.5 compression. Using a bullet camshaft
I am mainly building for street usage with a tr6060 with .5 OD but swapped to a t56 magnum. Car currently has a high reving w5 headed 340 stroker.
I was not worried about what block I used because I don't plan to push it to its limit. Also the block I got had broken motor mount ears so I planned motorplate.