The 'magical' 383
1967 383/325 HP ........... 1968 383/330 HP ............... 1968 383/335 HP
325 HP @ 4800 RPM's .......... 330 HP @ 5000 RPM's ........... 335 HP @ 5200 RPM's
425 Ft/Lbs. @ 2800 RPM's ... 425 Ft/Lbs. @ 3200 RPM's .... 425 Ft/Lbs. @ 3400 RPM's
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A general overview in the differences, and Horsepower Gain.
The 1967 ~ 383/325 HP was the 'base' 383 Performance Engine found
in all B-Body Mopars.
This was the same combination as the previous year {1966 Models}.
The 1968 ~ 383/330 HP was the 'base' 383 Performance Engine found in the
B-Body Models.
* Plymouth > Belvedere, Belvedere II, Satellite and Sport Satellite
* Dodge > Coronet, Coronet 440, Coronet 500 and 'base' Charger
The 1968 ~ 383/335 HP was the 'special' 383 Performance Engine found
only in the 'new' Road Runner and 'new' Super Bee.
Also in 1968, the 383 Engine found in the A-Body Cars {Barracuda
and Dart GTS} was rated at a low 300 Horsepower, due to a restrictive
Exhaust System.
300 HP @ 4400 RPM's
400 Ft/Lbs. @ 2400 RPM's