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Bore and Stroke
The Mach 427 R/C engine is a two-stroke type with bore of 18mm and stroke of 16.75mm, or 0.95 by 0.69 inches, for total cylinder displacement of 4.27cc. The Mach 427 R/C engine generates 2.85 horsepower.
Bearings and Ports
The front bearing dimensions are 0.3 by 0.8 by 0.2 inch. The rear bearing size is 0.5 by 0.9 by 0.2 inch. The engine has seven ports.
Carburetor
The Mach 427 R/C engine has a precision two-needle slide-valve carburetor. It can be rotated by loosening a nut on the side of the crankcase. The throttle arm must be mounted to the correct side if the carburetor is rotated.
Fuel
Fuel used for the Mach 427 R/C engine must be designed specifically for model vehicle applications only. The best fuels for this purpose are blended with 20 percent nitro. Dynamite offers several fuels to meet these specifications.
Other Specifications
Peak torque is 53.8 at 18,750 rpm. The pipe on the engine is tuned aluminum. The starting system is a pull-type starter. The manufacturer recommends an electric starter be used for initial engine starts. To use the pull starter, use short, quick pulls and never extend the rope more than 12 inches.