Lowest cost 400 stroker

500cid? Pshhh.....512! And it uses cheaper Chevy 2.2" journal BB rods. That probably saves you some dough but youll have to search for pistons, ie .090 over 454s or bore is for 4.468" Mark V 502 pistons.
Crankshaft-440 Source
Very very interesting!

What about oil pickup clearance? I've read somewhere that above 4.15 stroke you're looking at interfering with the oil pickup?

Also BB chev Pistons. Interesting but wouldn't I have issues with the valve reliefs?