360 motors

Ok good on the pumps. Pressures sound spot on. I'd still go with a lighter oil. I see no need to use 20W50 for drag racing. What oil filter?

#3 is fed from the #2 main and so is the #2 cam bearings as well as the drivers side rockers system. That is the point of draginmopars about blocking the feed from cam bearings 2 and 4 to the heads; it takes a bit of oil pressure away from main #2 and 4 and thus from rod bearings 2 and 3 (fed from main #2), and 6 and 7 (fed from main bearing #4).

Why #3 rod is the only bad one for you, I can't say. Seems like most I have read is of there being a problem is back at the #4 main, not the #2 main. Is the #3 bearing actually spinning in the rod?
- Have you had the older rods reconditioned?
- Were the new rods stock type rods?
- What rod bolts?
- Are you checking rod side clearance?
- Standard cam bearing types (not full grooved)?
- Have you checked lifter bore sizes? Loose lifter bores bleed off pressure the further you go to the front. Dunno why #1 & 2 would not be effected though, as you say....
- Are the rods being installed with the side oil outlets at the parting line pointing down to the cylinders (Numbers up with the engine flipped over)? These rods have a small sideways offset in the rod beam from bottom to top, and that needs to be in the right direction. Just wondering if something is side-loading the rods.

And I am assuming the 360 LA engines, not Magnums.