427 engine oil pressure sensor location.

[doctordiode]

I need to know the location for the oil pressure sensor on a (1969 ?) Engine.I have a 3/8 pipe plug on top of the oil filter screw. I don't see another place for it is there ?.

 

[JohnZ]

The oil pressure line fitting on a big-block goes in the rearmost of the three holes above the oil filter shown below; 4-bolt blocks have all three holes (with plugs in the front two), and 2-bolt blocks only have the unmachined bosses for the front two, with only the rear one drilled/tapped. In either case, the hole is 1/8" NPT (pipe thread). Paragon has the fittings and line.