Why this car matters
The 1970 Plymouth Hemi 'Cuda combines the performance 'Cuda version of the Barracuda with the optional 426-cubic-inch Hemi V-8. The engine is an option within the 'Cuda line, rather than a separate make. Plymouth's revised brochure illustrates both hardtop and convertible bodies and lists the Hemi as optional on the 'Cuda. Plymouth brochure, specifications
Factory power figures
The brochure specifies 425 hp at 5,000 rpm, 490 lb-ft at 4,000 rpm and two four-barrel carburetors for the 426 Hemi. These are advertised engine figures, not a measurement of power at the wheels or a period road-test result. Its specification table does not explicitly label the rating basis; comparisons across model years should retain that qualification. Factory specification table
What the production count covers
Hemmings reports 666 cars for the U.S., including 14 convertibles. The 652 hardtops shown here are the arithmetic remainder, not an independently quoted factory subtotal. These figures should not be presented as worldwide production. Hemmings production account
Transmission and individual-car evidence
Hemmings describes a four-speed manual or three-speed TorqueFlite automatic, with different standard rear axles and optional axle packages. A model-level specification cannot establish the original equipment of an individual car. Transmission and axle overview
The photos and videos provide representative exterior and model context. They do not authenticate a particular car's engine, body identity or original options; those questions require records tied to the vehicle.
Compare the 1970 LS6 Chevelle and Hemi ’Cuda with factory specifications and the limits of their production counts.