yup, IF it's the 440 length stroke, it's the same set-up that turns a 400 into a 451

or, in that 383 it's a 426 at stock bore, 432 at .030 and 438 at .060.

if the block can take it, it's a 440 in 383 skin if you bore it to .070 over. but you can't use 440 pistons, because they'd be too tall.


as to whether or not the set-up you're looking at is a stroker or stock crank, you'll have to measure how much the pistons travel in the bore. I don't know what cranks were available and by who, but surely someone is making new, stock stroke cranks for the 383s.