Hey Oly, thanks for posting the photo for me. I appreciate it. I have a little more information about this, but I'm still stumped. This is a '60 235. I checked the photos of the motor when I first looked at it at the junk yard. At that time, it still had the fly wheel and the manifolds, carb and air cleaner on it. But no oil filter is present in the photos. From the threaded hole that I marked on my photo as "oil filter intake" there was an oil line with a t-connect. This line went around behind the motor and above the fly wheel. It attached to a threaded hole at the top of the motor just forward of the coil. Looks like it was intended to feed oil to the other side of the motor. From what you guys have said, it sounds like the oil pressure gauge would connect at the t-connect threaded hole that was left, which leaves no room for this to be to the oil filter intake. Am I right so far, or would the t-connect be for the filter and the pressure gauge connect elsewhere? I'm now starting to wonder if this motor ever had a by-pass filter. Is that possible and have it be original for a '60? If I'm right about the t-connect being for the oil pressure gauge then that only leaves threaded holes #1 and #2 for the filter. Mechainiac, the plug you mention forward of hole #1 was already inserted and tight, so when the motor was taken to the junk yard, there was no filter hose connecting there. Also, looking at the old photos I took at the junk yard, the air cleaner was mounted forward of the carb on the manifold, so the only place there would be room for an oil filter mounted on the manifold would be to the rear of the carb, which puts it above the two threaded holes 1 and 2. I'm still stumped. What did you mean that this could be a full pressure oil system? What would that mean? No filter? Unfortunately, when I bought the motor, the wrecking yard owner had already removed the air cleaner, carb, manifolds and fly wheel. Glad I took the photos before I bought it or I wouldn't even have this much information.
