Wasn't a mention as to if this engine was solid lifter or mush lifter. But each has a different way of lubricating the pushrod ends. On the solid lifter engine, the push rods are usually solid too, on the mush lifter engine they are three pieces welded together on a tube.

On a mush lifter engine, the upper and lower end is a simple ball bearing that got welded to a tube. At the end of the rocker arm is a little hole and it is this hole that provides the lubing. As excess oil comes out the rocker arm bushing it gets on to the whole arm. It then flicks around and into the little noted hole. This then lubricates the upper end.

At the lifter end of a mush engine, the exact fit between the oil bore and the lifter is clearanced. Oil then works it's way to side and top of lifter via the pumping action. This oil then gets trapped on the pushrod cup, and lubricates the lower end. Some oil also runs down the pushrod and gets trapped also.

On a solid lifter engine, there are zero oil holes drilled in the galley to feed the lifters. The main supply then relies upon the camshaft spilling in to the lower end of the bores, and working upward to the cup area. Again there is some running down the actual pushrod to lube it.

At the top end of the solid engine, the pushrod has a cupped end. The mentioned flicking around of oil then coats all of the rocker arm, and flows into the cup. Providing lube there.

It really does not take a whole lot of oil to lubricate the pushrod ends. This was all written out in some 1962 era booklet that Frod used to mail out.


Wm.

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Old Ford owner