I wouldn't be worried about who made the blanks. Once a camshaft is ground, it is surfaced hardened with the Parkerization process. That is what makes, or breaks - a cam - along with how well the installation and break-in is done.
Back in the 70s, General Motors claimed that most of their cam-failures were caused by improper break-in at the factory, not a bad hardening process. True or not, who knows and who cares at this point. Back then, we usually repaired engines with replacement cams from Crane Comp., and few other aftermarket companies. I've never had, nor have I seen, a failure problem with any of the afermarket cams when done right.
But now adays? Can't say.
In regard to engine oil, even the automotive diesel oils have the ZDDP anti-cam-wear ingredients lowered for removed. Only the racing, tractor, or European oils still have it.
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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