Ford’s 4.2 liter English diesel engine! No question about it, Had them in Ford 5000, 7000 and 7610. Absolutely bulletproof, economical fuel consumption and minimal maintenance. The “7” series tractors had turbos and easily put out 85 and 100 + hp. Ask anyone who owned one - I never heard any complaints about them.

“My horn is full and my pouch is stocked with ball and patch. There is a new, sharp flint in my lock and my rifle and I are ready. It is sighted true and my eyes can still aim.”
Kaywoodie