My initial thought was the 350 Chevy, the Toyota 22R, and the Ford 7.3 Diesel.
Each is great for its intended use.

I have owned them all and the engines ran forever. Kids and jobs motivated me to sell them-more room for car seats, etc.

BMT

"The Church can and should help modern society by tirelessly insisting that the work of women in the home be recognized and respected by all in its irreplaceable value." Apostolic Exhortation On The Family, Pope John Paul II