stock or hv oil pump

Jadaharabi said

Thought the reason for removing the flashing be it in the lifter Valley or in the bottom of the motor or on the cylinder heads was to reduce the risk of a stress crack.

Personally I've only seen it happen to one block an that was a 273. It was on the front opening passenger side about 3/4 of an inch long.

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Never seen't that happen in my lifetime.
LOL...
answers I would accept...
to strengthen the valley, like polishing a rod. Kidding, whatever helps for what what you're doing i guess. We all have sometimes different experiences.
Imo Some things are just a waste of time and solely for the delight or conscience of the builder.

I grind the flashing from all the heads i port to help the oil return to the valley faster and to take some of the weight off of them, If they're iron, because they could really use any lightening they can get!

Some might call that a waste...but imo not compared to unflashing the windows or oiling the intermediate.