"do i really need the oil bypass or it fine since i dont rev my engine very much
as i let the jeep crawl most of the time, i run 10w 40 amsoil in it
and my oil pressure is just like a new engine"
Guess no one has answered this original question.
Opinions seem to be no need to do it for low rpms.
Opinions seem to be an increased capacity oil pan is ""better" or
just run an additonal quart of oil, "overfilled", in the stock pan.
More options are cam bearings with smaller holes,
pushrods with smaller oil holes, check them thouroughly before use,
some even modify and drill the blocks to oil cam after the mains
and I think install cam bearings so they block off the original oil feed holes.
But for low rpm operation, probably just run 1 quart extra in the stock pan would be "enough".
Understanding is oil problems stem from pumping the pan dry due to poor drainback.
Believe it was the first SS/AMX bulletin from AMC that advised
that the stock pan be deepened and the pick-up extended.
But this was for drag racing and higher rpm usage.
There are a number of mods that can be done to improve oil drain-back.
Deburr all oil drain-back openings in the lifter valley,
some kind of mod to the inside of the lower area of the timing cover,
maybe slightly enlarge the drain-back holes in the heads,
healthy chamfering of the 2 large holes in the block's front face,
even drilling a number of small holes between the lifters in the valley.
Many here are much more experienced and knowledgable than I.
:idea:
