Temperature Sender

[b2948kevin]

I am doing a 350 swap in my 66 C10. The temperature sender on the original 250 that was in my truck used 2 wire Temperature sender, but my 350 now has a 1 wire sender. I have looked all over for a 2 wire sender for this application, or even a 2 wire sender for the original 250 and have come up empty handed.

Anyone have a part number or recommendation for the original temp sender on the Chevy 250 motor, or even better, a 2 wire replacement that works on a 350 from 1986?

If not, anyone know how to hook the stock idiot light up to a 1 wire sender?