Ford enthusiasts are buzzing with anticipation as whispers of a new Shelby Mustang GT500 for the 2026 model year gain traction. A leaked document from the UAW Local 600, initially reported by the Mustang7G forum, suggests that Ford’s Dearborn Engine Plant is gearing up to produce a new engine, codenamed “Legend,” specifically for the upcoming GT500.
Ford Mustang Shelby GT500 logo on a video thumbnail, hinting at the anticipated 2026 model with the new Legend engine.
The memo indicates a recent increase in staffing at the Dearborn plant, with around 300 new hires and transfers to bolster engine production for models like the Bronco Sport and Maverick. Crucially, this expansion also includes an additional shift on the Niche Assembly line dedicated to building the “Legend” engine for the 2026 Shelby GT500, signaling a significant performance upgrade for the iconic muscle car.
While Ford spokesman Mike Levine declined to comment on future product speculation, the UAW memo serves as a compelling hint at what’s to come. The previous generation GT500, a 2020 model, boasted a supercharged 5.2-liter V8 engine delivering a staggering 760 horsepower. Enthusiasts are eager to learn if the “Legend” engine will surpass these figures, pushing the boundaries of Mustang performance even further.
Used 2020-2022 Shelby GT500 models currently command prices ranging from $70,000 to $117,000, according to Edmunds.com, reflecting the model’s desirability and performance pedigree. The arrival of a 2026 Mustang Shelby GT500 with a potentially revolutionary “Legend” engine is poised to reignite the high-performance muscle car segment and further solidify the Mustang’s legendary status. Car enthusiasts worldwide are keenly awaiting official announcements and further details about this exciting development.
