383B Stroker Build

That may be a likelihood-I know I've seen forged 440 cranks on eBay for as little as 200 in serviceable condition. The 440 Source cranks are $700 as advertised...I guess it depends on how much you want to spend, as the 440 cranks will either need to be cut to fit the block, or the block clearanced to fit the crank...and this is one I can't speak to, but if you're using B length rods, I don't know if the counterweights will clear the piston skirts at BDC without being cut.

If I were doing a 383 stroker, I'd likely use a similar recipe to what Fisher used or what moparlover suggested above...but my toy would likely be driven more than raced.