The 360 build that has more turns than Willow Springs

TT5.9mag said

Both the factory magnum dampers I have currently in my stash have the same timing marks. It’s rather normal.

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This engine has a 1990 casting date, maybe they started adding the degree marks toward the end of the LA series? None of the older 318 balancers had this, none of the big blocks ones do either.
I have a friend that is building a 408 from a 1991 block, I'll bet his balancer has the marks too, I'll ask him.