flathead oil pressure senders

[41ford1]

I agree you need to match the sender scale with the gauge scale. A 50# sender must be used with a 50# gauge and the same with the 80#s. However, I did find that a sender for a 302 in a 1980 F100 does work accurately with the stock 50# guage in my pickup. The sender I was sold for the application is a Standard Motor Products partno PS-60. 3 years ago it cost $25.00, available locally and was made in the USA.