Here is the 383 as it sits now. It's been on the stand for about 8 years bagged up.
The temp gauge is fixed.
I figured out how to roll the speedo back. The zeros are in the wrong position on the shaft which is easy to fix, but then I ran into a bigger problem.
The housing was froze up. I eventually got it freed up.
The needle was froze up on the shaft which eventually broke. It had to be removed to take the speedo apart. I don't think I can repair the pin. Anybody got a speedo for sale? Ebay here I come.
speedo exploded view