K member notching question

Steven190 said
I am not sure, but I do not think that it does not matter if the engine is out and you put it in from the top or not. If the oil pan needs to have a notch then it should be cut in. You will have to mock it up with a block and pan with the motor mounts attached to the K member. If all clear then you can install the engine after from the top. I have install many engines from the top with not trouble if everything clears.

My understanding is that because of the angle required when putting the engine in from the top, the front of the oil pan is more forward than it would be if the engine was not angled and I’m not sure if that is the only reason the K member gets notched. Would it still need notching if the engine were not installed at an angle? That is the question.