Re: Oil Pressure Gauge
The point for oil pressure pickup is a small, 1/8" Pipe thread, plug located on the distribuitor side of the engine block in the center just above the base pan rail. It is located on a rounded out area on the block cast for the oil pump drive. The plug, frequently covered with road grime, takes a normal but sturdy screwdriver bit to remove it. Some can be a bit difficult to access with a good tool due to the limited space to the frame.
It is the same hole that some use to thread a fitting into to hold the oil pump when reinstalling the base pan.
John
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