Building a 383 help

Top end builds your power like heads, cam, intake, carb etc... and even bore size.

Bottom end stroke rod ratio and displacement decides where the power band is.

If you build a 383 with the same stroke as a 440 or 400 you'll only be 20 cid or so less not the biggest deal.

If building the 383 go with 3.75 stroke minimum (426-438 cid) don't see why people build 383 with stock stroke.

Go with trick flow heads and a decent hydraulic roller cam and your 90% of the way there.