lifter galley crossover tube

Rapid Robert said
OK verbatim: "In an effort to find out why this main, which is not far from the oil pump & should logically recieve plenty of oil, was being slighted, Larry spent considerable time forcing high water pressure through the oil passages of a block to see how it was being distributed. What he found was amazing: the oil was actually going through the main oil gallery on the right side "too fast" (in italics). Since the mains are fed from the right gallery through passages that meet the main gallery at right angles, the pressurized oil couldn't make the sharp bend very easily". He went on to say that there is no problem if the RPM is 7500 RPM or less.

Thanks Robert, but it only mentions the block. I'd like to know if it had a crank, rods, and bearings, camshaft, lifters in the bores, cylinder heads with rocker gear, and all galley plugs installed. Otherwise, the test doesn't yield valid results. The amount of oil bled off would have to be measured at each bearing, and the oil bleed at the heads would have to be accounted for on 2 and 4, and it still wouldn't account for the rotationally induced changes and fluctuations. It's a lot more scientific than watching water shoot through an open passage.