💥 This 10,000-rpm naturally aspirated four-cylinder is the kind of mechanical insanity modern automakers would never dare build. Boreham’s new 2.1-liter “Ten-K” engine runs 16 valves, individual throttle bodies, DOHC architecture, billet pistons and rods, a billet crank, a dry-sump system, and a race-grade valvetrain that lets it survive sustained five-figure revs while weighing just 187 pounds. It skips turbos entirely, relying instead on sky-high compression, ultra-light rotating mass, and pure airflow to hit 325 hp the old-fashioned way. The motor powers Boreham’s licensed continuation Ford Escort Mk1 RS, complete with a real two-year, 20,000-mile warranty from the small British manufacturer. Doesn’t this feel like the kind of engine modern automakers are too scared to build anymore? What are your thoughts? 🤔💭 Featuring Media From borehammotorworks #ford #fordescort #engine #fourcylinder #cars