Thanks for all this info. I'll have to keep this in mind.
I'm not big into racing, or drifting, or anything like that. I'm just into regular old sedans and cars and stuff like that. That being said at the moment I'm planning on keeping the car as stock as possible (although I make exceptions for stuff like the brakes as it's a safety thing) and I also plan on keeping the slant 6 for as long as I can then maybe if some years down the line it throws a rod or something, either I'll do an engine swap and/or do a manual swap. I've looked into people doing v8 swaps before with these types of cars but I've only looked at the surface level stuff. Ideally the car will eventually be a daily driver/weekend car type of thing.
This all being said, I will certainly keep this in mind.