1968 Dodge Charger R/T Engine Options and Specifications

In 1968 the Dodge Charger R/T could be ordered with two different high performance engine options.

For the 1968 Charger R/T, the 440 High Performance 4 barrel engine was the standard engine. One engine option was available which was the 426 Hemi.

This article will include the 1968 Dodge Charger R/T engine options and their specifications. This includes the engine code, cost, displacement, horsepower, torque, compression ratio, camshaft, lifter type, valve sizes, bore, stroke, air cleaner, exhaust, fuel and carburetion.

1968 Dodge Charger R/T Engine Options and Specifications

1968 Dodge Charger R/T
1968 Dodge Charger RT

The 1968 Charger R/T was available with the following two engines.

  • 440 High Performance 4-barrel (Standard)
  • 426 Hemi (Optional)

The 440 high performance was carried over from the previous year Charger with basically no changes. The 426 Hemi was also carried over and had a slightly different camshaft but had the same rated power numbers as the year before.

1968 Charger R/T With a 440 High Performance 4-barrel

The 440 High Performance 4-barrel was available as the standard engine for the 1968 Charger R/T. The engine code was 83. Let’s take a look at the specifications.

Specifications440 4-barrel
Displacement440
Bore and Stroke4.32″ x 3.75″
Horsepower375 @ 4,600 RPM
Torque480 @ 3,200 RPM
Compression Ratio10.1:1
CamshaftHigh lift, long duration, high overlap
Cam Duration/Overlap268°/284°/46°
Cam Lift.450″/.458″
Lifter TypeHydraulic
Valve Diameter, Intake2.08″
Valve Diameter, Exhaust1.74″
CarburetionSingle Carter 4-bbl
Air CleanerDual Snorkel
Exhaust SystemDual, low restriction
Fuel RecommendedPremium
1968 Dodge Charger R/T 440 4 barrel High Performance Specifications.

1968 Charger R/T With a 426 Hemi

426 Hemi engine inside a 1968 Dodge Charger R/T
426 Hemi engine inside a 1968 Dodge Charger RT

The 426 Hemi was available as an option for the 1968 Charger R/T. The engine order code was 73 and cost an extra $604.75. Let’s take a look at the specifications.

Specifications426 Hemi
Displacement426
Bore and Stroke4.25″ x 3.75″
Horsepower425 @ 5,000 RPM
Torque490 @ 4,000 RPM
Compression Ratio10.25:1
CamshaftHigh lift, long duration, high overlap
Cam Duration/Overlap284°/284°/60°
Cam Lift.490″/.481″
Lifter TypeMechanical
Valve Diameter, Intake2.25″
Valve Diameter, Exhaust1.94″
CarburetionDual Carter 4-bbl
Air CleanerUnsilenced
Exhaust SystemDual, low restriction
Fuel RecommendedPremium
1968 Dodge Charger R/T 426 Hemi Dual 4 barrel Specifications.

That’s the complete list of engines available for the 1968 Charger R/T. If you have any questions to ask me about the engine options or specifications for the 1968 Charger R/T car model, send us an email found specifically on my contact page or comment below.

1968 Dodge Charger R/T
1968 Dodge Charger RT

About 38 years ago I assembled my first Mopar engine, it was for a 1970 ‘Cuda. It’s at that time my hands on experience with Mopar cars and engines, including the 440, started. Although my research of the engines started years earlier.

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