All,

There have been some interesting posts about using the 4.15" Crankshaft in the 383. Using the Short 383 Rod may not be feasible, but you could use the Long 440 Rod.

Bore = 4.28" (4.25" + 0.030")
Stroke = 4.15"
Rod Length = 6.768"
Pin = .990"
Compression Height = 1.120"

6.768" Rod / 4.15" Stroke = 1.63 Rod Ratio

Final Displacement = 477.6 cid

And it looks like a seemingly unassuming 383.

Thanks,
Mark Jackson
The Jackson Garage