I have a set of electric big block curved gl*** gauges I am going to put in my early Vette but I am having a hard time finding the correct senders. The problem is that I can't find senders with the correct ohms. Oil pressure sender needs to be 90-0 ohms and the and the water temp needs to be 250-50 ohms. Anybody have a clue of who may have these? I have talked to all the speedo shops from Mo Ma to No Hollywood Speedometer and United and nobody has anything even close.
I was trying out the Ford 6v oil pressure senders , 50# and 80# , and they didn't work. Only thing I found out that works is the SW 6v senders so far.
My big bock fuel gauge was stamped 6V. I found a 6V SW sending unit on Ebay and hooked it up with a Runtz voltage regulator again from Ebay. The rest of mine are mechanical gauges.
No one makes a reproduction sender that will run the 6v SW gauges. You have to use the original type. BTW the "Ford" (King Seely) senders and gauges are completely different. Never attempt to mix and match senders, you can damage both items.