I don’t know a ton about foreign motors other than surface level stuff like the 2JZ, Wankel, etc. so please forgive my ignorance outside of US motors.
However, in my eyes, it doesn’t get better than the simplicity and easily available power of the SBC, BBC, and 6BT. What are your all time favorites and why?
I love Toyotas 3ur-fe 5.7l v8 and the 5vz-fe 3.4l v6. The most reliable, issue free, low maintenance workhorses I’ve ever had the pleasure of owning. Supercharged 3ur is a monster as well.
I have a soft spot for ej’s. Yeah they’ve got a reputation, but treat them right from new and they’ll treat you right. Have a low mile ej-257 in my forester with a bunch of go fast parts and it’s extremely reliable. Tune it right, regular oil changes and don’t go overboard and it’s perfectly reliable.
Of course, my favourite of all time is the jaguar xke. Work of art. I hate mine, but also love it so much. So tricky to get right but when it is right, oooooh man.