Very high oil pressure

[RICK LAKE]

Jerry Clayton Jerry are you talking about cross drilling or gun drilling the cranks for a 180 degrees? If you find a couple of the old manuals for racing the FE motors they said not to fix the oiling hole to match the bearing holes. The off set holes acted as a limiter on the mains to oil each main and the 2 rod bearings. This is an old manual that talks about the oiling system. Roush machine cut open a FE motor and showed the galleys for the oiling system and how they got smaller the farther you get from the filter housing. Think the SO still is a better designed oiling system then center oiler. Rick L.

[Jerry Clayton]

Rick

No . The ctanks were drilled with interconnecting passages from the front to the rear---you could put oil in number 1 and get it to come out number 8

Ford developed a crank for the 427 that had large passages drilled thru it, sealed the holes with plugs and snap rings--I.m sure you have seen some pics

Back then , it was stated in maybe an SAE paper or something similar that the centrifucacle force whould pump oil at 7000 rpm---

Up until then it was necessary to have enogh pressure to overcome c force of 1/2 the main dia at x rpm

Jerry