K member notching question

Ive done a lot of reading about K member notching but I’m a little confused if the notching is only nessary if the engine is installed from the top with the oil pan in place. If the K member is out of the car and I atach It to the engine defore it goes in the car will a milodon street strip 7 or 8 quart pan fit without notching the K member. I ask because I want to get the K powder coated but the engine is not done to check things. Thanks.
Like said before connect auto tranny in car set it on not in trans mount on floor jack smacked up against firewall to get clearance engine has to go STRAIGHT down very tight have to wiggle motor mount but once in engine mount pan fits really nice.