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?
There was a ski race boat in Australia that ran one for a few years in the 5.2L engine class against 5L NASCAR engines, it went well and it was a beautiful little motor
Vid in action