V8 Oil Flow

The filter head with the arrow showing the direction of oil flow, from the cooler (left) to the engine (right).

Showing the outlet from the filter going to the rear port on the pump cover.

Closeup showing how the oil gauge hose on later cars comes off the outlet port in the pump cover.

Image from the V8 Workshop Manual Supplement showing how the oil gauge pipe came off the filter head on earlier cars. It also shows the hose coming from the oil cooler removed from the filter head and with a funnel (a) inserted to run oil backwards through the cooler and the pump to prime the pump, if you have forgotten to pack the pump with Vaseline on reassembly, but be warned ....

... mine at least has a long steel pipe coming off the front of the filter head and curving down, forwards and then across behind the grille before it joins to the hose from the cooler. There is no way you will be able to pull that back and angle it to get a funnel inserted.