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Boreham Unveils 10,000-Rpm, 330-HP TEN-K Engine for Ford-Sanctioned Escort Mk1 RS

The bespoke 85kg four-cylinder is now installed in the prototype ahead of first test runs.

Overview

  • The 2.1-litre TEN-K has completed months of dyno development, with output confirmed at about 325–330 hp at a 10,000 rpm limit.
  • The lightweight unit uses billet crank and rods, a dry-sump system, individual throttle bodies, a 16-valve head with F1-inspired port geometry, and a 3D-printed block.
  • Boreham’s Mk1 RS is a Ford-approved continuation built from scratch with official chassis numbers, limited to 150 cars.
  • The analogue-focused car targets 800 kg with a 55:45 weight distribution, MacPherson front struts, and a new lightweight fully floating rear axle with coil-over dampers.
  • Prices start from £295,000 with a two-year/20,000-mile warranty, and buyers can choose either the TEN-K or a reimagined 1.8-litre Twin-Cam making about 182 bhp and revving to roughly 9,000 rpm, with public previews planned next summer before production begins.