426 Hemi V-8 Engine Specifications

The Dodge 426 Hemi V-8 engine.
Above: The Dodge 426 Hemi V-8 engine.

The 426 HEMI V-8 engine features hemispherical combustion chambers, two tandem-mounted 4 -barrel carburetors, maximum performance fuel pump, a special 3/8″ fuel line, and a dual-breaker distributor. A solenoid-throttle stop causes the throttle blades to close completely when the ignition is turned off preventing “after-running.” New hydraulic valve lifters. A 12-month/12,000-mile warranty applies and is limited to the original purchaser.

Engine Type: OHV V-8

Piston Displacement: 426 cu. in.

Bore and Stroke: 4.25” x 3.75″

Compression Ratio: 10.25 to 1

Horsepower @ RPM: 425 @ 5000

Torque, lb-ft. @ RPM: 490 @ 4000

Fuel Recommended: Premium

Standard Axle Ratios: 3.54 w/4-speed manual-sure grip or 3.23 w/automatic

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