Original 1951 oil pressure and temp are mechanical, I think?
Correct. Oil pressure used a small diameter tube to the gauge and the temp gauge is a sealed unit with a remote bulb that mounts in a hole in the head.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.