1970 Plymouth 'Cuda 383 car turned pro-touring: 408 stroker, T56, Reilly coilovers

Why we picked it

GR Auto Gallery lists this 1970 'Cuda, VIN-coded as a factory 383 car, after what the seller calls a ground-up rebuild. It now runs a Proformance-built 408ci small-block stroker rated by the seller at 545 hp and 565 lb-ft, backed by a T56 six-speed. Reilly Motorsports AlterKtion front and Street-Lynx rear coilover suspension, Wilwood 11.25-inch four-piston brakes at all four corners, Vintage Air, a Be Cool radiator with electric fans and an American Autowire harness round out the hardware. About 500 miles have been put on the build.

The catch is that the original big-block is gone, so this will never be a numbers car, and the roll cage and harnesses (certified through 2027) make it more of a track-day car than a cruiser. For a buyer who wants a real 'Cuda body with modern road manners, the parts list alone is a large share of the asking price.

The value check

The seller is asking $59,900. Comparable cars in the same condition have sold for $52,000–$121,000, so the middle of the market is about $86,500. That put this car 31% under.

Modified E-body 'Cudas have sold for $52,000-$121,000 in the last year, with the 1971 Gerst/Viking pro-touring 'Cuda bringing $121,000 at Mecum and a swapped 1970 'Cuda $90,000; at $59,900 this is about 31% under the midpoint.

Where the numbers come from:

• 1971 'Cuda restomod, Mecum May 2026, $121,000
• 1970 'Cuda modified, Throttle Car Club Jun 2026, $90,000
• 1970 'Cuda 383 modified, GAA Feb 2026, $52,000

What to check

• Original 383 is gone; confirm the VIN, fender tag and title match and ask what happened to the drivetrain
• Check quarter panels, trunk drop-offs, rear frame rails and cowl for rust repair quality under the fresh paint
• A cage changes daily usability and resale; confirm the certification paperwork and whether it is bolt-in or welded
• Ask for the engine build sheet, dyno sheet and alignment specs from the Reilly install
• Mileage is TMU; budget for shakedown items on a 500-mile build

Making it drive like new

Most of the work is done. Remaining upgrades would be comfort-focused: a bolt-in cage swap if you want a street car, sound deadening, and a modern EFI conversion if the stroker is still carbureted.

3 builders make a complete chassis for the 1970–74 Mopar E-body (Challenger, Barracuda/'Cuda). Compare them side by side, along with what it takes to stiffen the factory frame.