1970 Challenger R/T 383 Magnum / Claimed Factory HP ?

[3.0CSL]

Hi all, as above, what kind of HP did the factory state ?


Also, looking @ the factory exhaust manifolds on my car, they look Very restrictive. There is very little clearance room between the inner fender and the manifold, to get a decent set of headers in there.

[dodj]

I think it was around 335. 

[JS29]

There were two N-code 383's both E63's. An R/T would have 335 horse power, the non R/T would be 330 horse power. except if the non R/T or JH when equipped with a 4-speed. same rule for the Plymouth, BS 335-hp, BH or BP 330 Non HP, with the same exception. 

[erik70rt]

There were two N-code 383's both E63's. An R/T would have 335 horse power, the non R/T would be 330 horse power. except if the non R/T or JH when equipped with a 4-speed. same rule for the Plymouth, BS 335-hp, BH or BP 330 Non HP, with the same exception. 

Didn't the A/C cars also come with the 330 instead of the 335?

[JS29]

Based off of Dan's teaching's no.  @6bblgt would know for sure, but an R/T or BS was 335-hp period.   

[anlauto]

....and my wifes new V6 Challenger is rated at 305 hp

[RUNCHARGER]

428 CJ was also rated at 335HP. This is one of those times it wouldn't be a good idea to race one with your 335HP 383 though.

[JS29]

And my i add the 383-hp was the base engine for the Challenger R/T and the 'Cuda. 

[chargerdon]

....and my wifes new V6 Challenger is rated at 305 hp

Isnt that remarkable !!   PLUS  in 1970 that was 335 GROSS HP...   The new V6 at 305 NET is actually more powerful !! 

[6bblgt]

Based off of Dan's teaching's no.  @6bblgt would know for sure, but an R/T or BS was 335-hp period. 

correct!  the '70 383HP (painted orange w/HOLLEY carb) was 335hp with A/C, with automatic, with manual transmission, with 3.23s, with 3.91s - it didn't matter 

the confusion comes from 1968 & 1969 383 powered Road Runners & Super Bees having 330hp with A/C & 335hp without A/C

[Topcat]

Hi all, as above, what kind of HP did the factory state ?


Also, looking @ the factory exhaust manifolds on my car, they look Very restrictive. There is very little clearance room between the inner fender and the manifold, to get a decent set of headers in there.

They'll get even more restrictive once you go over a speed bump unwareingly.   

Headers suck!!!! Period!!!

Concensus here...most will agree.

[JS29]

Hi all, as above, what kind of HP did the factory state ?


Also, looking @ the factory exhaust manifolds on my car, they look Very restrictive. There is very little clearance room between the inner fender and the manifold, to get a decent set of headers in there.

They'll get even more restrictive once you go over a speed bump unwareingly.   

Headers suck!!!! Period!!!

Concensus here...most will agree.

That or replacing the starter.