Diesel Brothers

Heavy transforms a Vietnam-era bridge boat into the only diesel‑powered surf boat in the world, showcasing unique engineering. Afterwards, the team travels to California in the United States to locate a rare Excursion model, adding another pursuit to their project.

Detroit Diesel Brothers is a programme that presents each instalment as a standalone episode, following the team as they tackle unconventional diesel‑powered projects. The series is built around hands‑on engineering challenges, and this particular episode continues that tradition, focusing on two distinct undertakings that push the limits of what diesel engines can achieve. In the first half of the episode, Heavy takes a Vietnam‑era bridge boat and transforms it into what is billed as the world’s only diesel‑powered surf boat. The conversion involves adapting the historic hull for surf‑related use while installing a diesel engine, creating a unique vessel that blends military‑era design with modern marine recreation. After completing the surf boat, the crew heads west to California, where they set out to locate a rare Excursion, adding a treasure‑hunt element to the narrative. The remainder of the episode showcases the team’s methodical approach to both projects. Viewers see the practical steps taken to retrofit the bridge boat, the challenges of sourcing appropriate components, and the logistical planning required for the California search. By the end, the episode documents the successful launch of the diesel surf boat and the progress made toward acquiring the rare Excursion, underscoring the programme’s focus on inventive diesel engineering.