MOJO:
You have a very rare set of gauges. The hook-ups are the same for either a '63 or '64 car. The only difference in the gauges is that the '63 set uses a 80 pound oil pressure gauge whereas the '64 uses a 60 pound oil pressure gauge.
Here is my two cents, for what it is worth on the oil transducer. I will give some input for you on the '63 package and hopefully help out BigAquaBonney on his earlier posted question on the '64 gauge package for a part number. Here you go.....
I have done a considerable amount of research on both the oil pressure transducers used from 1963 through 1967. I needed to do this because I have two 63's and one 64 gauge packages (installed in individual dash pods) and was tired of getting "the pegging" results that many see when an aftermarket transducer is used. Others may have been sucessful in finding matches, I have not.
I will start with the early ones.
The 1963 full-size oil pressure sending unit, is an "AC" unit that is stamped 80 lbs., and is actually GM Part # 1506251. (See picture below). Later 63's were also "AC" units and were stamped with the P/N and 80 lbs., (some of the earlier "AC" units only had the 80 lbs. stamped on them.) In all my years of searching, the 80 lbs. indication was always stamped. In 1963, Vulcan Motor Products out of Newark, NJ also made an aftermarket replacement sending unit, OPV-9. The insulator tended to crack on these if they were over-tightened - you can still find some of these around but be very careful as some cracked ones were most likely returned when the installer inadvertently over-tightened them. You will not get a correct reading on them if they have a cracked insulator. In the past, I have seen pricing on the original '63 "AC" units in the $100 plus range for each. It was the first year for the "pontiac gauge package" and these units are getting harder and harder to find.The Vulcan units have been priced in the $40 plus range. I haven't seen them on ebay in the last year or so. But, I will check my storage cabinent. I may have a few spares of each and might consider selling some of them. Please do not bombard me with requests, when I find them I will let you know. I think I also have spare 63 and 64 gauge packages too. But, I need to check.
The 1964 full-size oil pressure sending unit, stamped 60 lbs., is GM Part # 1506191. It has both the P/N and 60 lbs. stamped on them. Pricing on these original '64 "AC" units also in the $100 plus range for each.
Although the 1963 through 1966 full-size oil pressure sending units may look identical to other AC units, they are internally different. From an old GM "Electrical" handbook, I found out the following: All 1963 through 1966 "Full Size" sending units had a maximum resistance of 31 ohms at full pressure (80 or 60 pounds - the gauges' dial resistances are different allowing for a 80 lbs gauge in the 1963 pod and a 60 lbs gauge in the 1964 pod and so on). This is different from a 1965 through 1966 "GTO" and 1967 and Up all Pontiac models sending unit as they had a maximum resistance of 93 ohms (All the pontiac catalogs including PY and AMES sell these.) One can not use a current GM replacement or aftermarket 1967 and UP 80 pound unit for the 1963 through 1966 "Full-size" Pontiacs as the oil pressure gauge will peg (based upon the resistance of the gauge) at only 20 or 26 pounds of actual oil pressure.
Now lets talk about wiring.The temperature and oil pressure transducers are shown in the pictures below. The temperature transducer get the green wire wheras the oil transducer gets the blue wire. The faded red wire (pink) is 12 V switched power source.
When installing your sensors, the oil transducer also get a 45 degree brass elbow. Do not use teflon tape on either of the transducers as they were meant to be grounded to get the proper readings.
I have shown the gauge package set as installed in my '63 - 421 Catalina Convertible.
If you need more pictures or help please PM me and I will try and help you.
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