The Real Reason the Valiant in Duel Couldn't Escape the Truck

Subscribe More Movie & TV Vehicle Stories: https://www.youtube.com/@Retroreelridesoriginal?sub_confirmation=1 Somewhere under the hood of a plain red Plymouth Valiant sits an engine tilted thirty degrees to the right — not for speed, not for drama, but because in 1959 a team of Chrysler engineers needed a low, stylish hoodline to close over an inline-six that was simply too tall. That packaging fix became the Slant Six: an engine that would run in production for 41 consecutive years and outlast nearly everything built around it. A decade later, that same engine ended up under the hood of the car cast to lose in Steven Spielberg's Duel (1971) — the red Valiant chased across the California desert by a faceless truck driver, playing weak, fragile, mechanically overmatched. Except it wasn't. Mechanics and owners have spent five decades calling the Slant Six "bulletproof," and online, viewers with real mechanical knowledge have been arguing for years that a Valiant should have had no trouble outrunning a 1955 Peterbilt on any kind of grade. This is the real production history behind that car and that engine — starting on a golf course in November 1963, when writer Richard Matheson and a friend were run off a rural highway by a tailgating truck on the same afternoon the country learned President Kennedy had been shot. That real encounter became a short story, then a $450,000 TV movie shot in under two weeks, then one of the most influential thrillers of the 1970s. We dig into: • How a hood-clearance problem in a Chrysler design studio created one of Detroit's most durable six-cylinder engines • The two competing, unreconciled accounts of why Spielberg chose a Valiant for the role • The three-to-four different Valiants actually used across filming, including a V8-equipped stunt car • The decades-long, still-unresolved debate over what engine audiences are actually hearing in the chase sequences • Why a 1976 Car and Driver test quietly proved this same chassis family could outrun a Trans Am Every claim here is sourced and confidence-tiered — where the record is genuinely split, we say so rather than picking the cleaner-sounding version. If you're the kind of person who notices a thirty-degree engine tilt in a movie most people only remember for its truck, this channel is for you. We cover the full production history and post-filming fate of the vehicles behind film and TV's most iconic scenes — the parts that never make the trailer. Join the Virtual Garage — our free membership hub with 3D models of iconic movie and TV vehicles, growing with every episode we release: 👉 https://retroreelrides.media/virtual-garage/ 0:00 The Engineering Fix That Defined a Legend 2:05 A Friday Afternoon on a Golf Course 6:19 A Young Director's First Big Break 10:29 The Slant Six: A Bulletproof Legacy 14:46 Casting the Valiant on a Shoe-String Budget 25:00 The Mechanical Debate That Never Ends 34:38 The Valiant's Global Impact and Legacy #Duel #PlymouthValiant #SlantSix #Spielberg #ClassicCars #MovieCars #ChryslerEngine #CarHistory