For sheer numbers and durability, the SBC.
For HP, the 426 Hemi followed closely, maybe even swapped for the ford 427 cammer then the BBC.
I’m not a Ford guy, but that 5.0 Coyote engine is a good one. The 5.7 hemi I had in my 2019 Ram was really good too. That 5.4 bespoke Corvette engine is supposed to be as well.
Diesels the 3406 is a good one but Cat engines are a PITA when it’s really cold out. Cummins are better in cold weather environments.
My grandfather helped develop the Wasp engines for Pratt & Whitney. Hell of an engine in the Corsair and B29 plus a few others.
