OIL pressure sending unit

[Sal]

A friend of mine acquired a French flathead engine and is not sure if it should have a 50 or an 80 lbs unit on it. We are hoping one of you flat head guru's can shed some light as to which one is correct for this motor.
Thank You

 

[BobbyD]

Motor don't matter, its the gauge you connect to that dictates 50 or 80..........

 

[Barlea]

If it's French, it probably prefers it's pressure measured in kilopascals per centimetre squared? ..B.

 

[Bruce Lancaster]

Most likely some version of the 80 would be right...the 80' have the number stamped on the brass part for identification. Whatever the French engines had originally was likely either a mechanical gauge or some European electric gauge unrelated to Ford usage.

 

[FRANK PKNY]

you just need to match the sending unit to the gauge. IE 80lb sending 80lb gauge.

 

[makemc]

there is a differance in a regular oil pump and a 80# pump