1967 383 'Commando' vs 'Super Commando'
1967 Mopar 383 'H-Code'
Plymouth Barracuda - 383/280 HP 'Commando 383'
Plymouth Satellite and Belvedere - 383/325 HP 'Super Commando 383'
Also,
Dodge Dart GTS - 383/280 HP - '383 4-Barrel'
Dodge Charger and Coronet - 383/325 HP - '383 4-Barrel'
One in the same, except for Exhaust Manifolds and Exhaust Piping.
All engine specifications were the same,
* Piston Compression
* Cylinder Head and Valve Size
* Camshaft
* Valve Train
* Intake Manifold
* Carburetor
* Ignition
The only difference was in the exhaust system. Was that truly a 45 Horsepower variation.
Based on tests on the 1967 A-Body exhaust system, it was obvious that the restriction in both
exhaust manifolds, and bends in the small diameter exhaust piping limited flow, resulted in
a 'net loss' of approximately 15 Horsepower and 400 RPM's compared to the 383 in the B-Body.
Barracuda...........Satellite & Belvedere...Dart GTS & Coronet
1967 Mopar 383 'H-Code'
Plymouth Barracuda - 383/280 HP 'Commando 383'
Plymouth Satellite and Belvedere - 383/325 HP 'Super Commando 383'
Also,
Dodge Dart GTS - 383/280 HP - '383 4-Barrel'
Dodge Charger and Coronet - 383/325 HP - '383 4-Barrel'
One in the same, except for Exhaust Manifolds and Exhaust Piping.
All engine specifications were the same,
* Piston Compression
* Cylinder Head and Valve Size
* Camshaft
* Valve Train
* Intake Manifold
* Carburetor
* Ignition
The only difference was in the exhaust system. Was that truly a 45 Horsepower variation.
Based on tests on the 1967 A-Body exhaust system, it was obvious that the restriction in both
exhaust manifolds, and bends in the small diameter exhaust piping limited flow, resulted in
a 'net loss' of approximately 15 Horsepower and 400 RPM's compared to the 383 in the B-Body.
Barracuda...........Satellite & Belvedere...Dart GTS & Coronet
