yeah, I looked into the possibility since I have a roller 318 block and wanted to build an engine without any chinese parts.

places here quoted me from $80-320 to turn the 360 crank to 318 main bearing size & SB chev journal.

doing the math, you can get 0 deck with a 360 crank, 6" rods, and KB167 pistons. howards racing components have some real slick powdered metal 6" chev rods for a decent price, but you'd have to rework the little end for the mopar pin size, as KB won't do anything custom (i.e. doing a SBC pin size in the aforementioned mopar pistons), which I got quotes of ~$250 to do.

overall, if running a flat tappet cam, build the 360 with stock rods, crank, and KB107 or speed pro H116CP pistons.

a 318 bored .030 over, stroked with a 360 crank ends up being a .060 underbore 360....