Mopar Swaps Electric GTX for Supercharged Hemi
Stellantis rebuilt its 1967 Plymouth GTX SEMA show car with a supercharged Hemi crate engine in place of the electric powertrain shown in 2024.
Updated on Nov. 6, 2026 in Electric Vehicles
Mopar rebuilt its 1967 Plymouth GTX SEMA show car, replacing the electric powertrain it showed at the 2024 SEMA show with a supercharged Hemi crate engine. Stellantis also bundled its Hemi crate engines with matching engine controllers as turnkey packages.
Why it matters
The rebuild reflects a return to combustion power in a classic muscle car after the EV version failed to satisfy its original owner. It shows how Stellantis is positioning Hemi crate engines as complete packages for enthusiasts building their own cars.
The Hellcrate Redeye's 885 hp and 787 lb-ft of torque are roughly 2.6 times the 335 hp of the 2024 SEMA EV setup. The engine drives the rear wheels through a TorqueFlite 8HP90 eight-speed automatic.
The players
Mopar
Mopar is the performance parts and vehicle customization division of Stellantis, known for building and supporting Chrysler, Dodge, and Plymouth enthusiast projects.
Stellantis
Stellantis is the multinational automaker formed by the merger of Fiat Chrysler Automobiles and PSA Group, and it owns the Plymouth, Dodge, and Chrysler brands.
The details
The 1967 GTX is finished in Frostbite Blue metallic and rides on 18-inch BTG Vintage Bronze forged magnesium wheels, with twin silver racing stripes and a functional hood scoop. Stellantis replaced the electric powertrain with the supercharged 6.2-liter Hemi crate engine, which is sold with a matching engine controller.
Timeline
November 1966: Car and Driver tested a 440 GTX to 60 mph in 6.0 seconds.
2024: The electric GTX debuted at the SEMA show.
2026: Stellantis revealed the supercharged Hemi GTX at SEMA.
Roadmap
The project revisits the 1967 Plymouth GTX, whose 440 Super Commando V8 produced 375 gross hp and 480 lb-ft of torque when new. Stellantis is now pairing that heritage with its 1,025 hp Hellephant Super Stock crate engine, showing the brand's current strategy of selling high-output combustion power to enthusiasts.
Enthusiasts planning a classic muscle car build now have a turnkey option that pairs a Hemi crate engine with a matching controller. The package delivers far more output than the 2024 EV setup, which may matter to anyone choosing between an electric swap and a combustion one.
The takeaway
Classic cars can be rebuilt to meet modern performance expectations, but the choice of powertrain shapes the result. Owners weighing an electric swap against a crate engine should compare output, weight, and their own driving goals before committing.
Further reading
For more on the shift between electric and combustion performance, see Electric Vehicles coverage.
Source note: This article includes information reported by Carscoops.
