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  #1  
Old 05-05-2003, 02:26 PM
spark spark is offline
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Question 340 Hp

Gentlemen/Ladies, First post for me. I own a 68 barracuda 340 - S
Just want your thoughts on this, What was the actual horse power for the 340. I have read the literature from the factory, 275 so they say but I am also told it was more like 290 or maybe better,maybe somewhere in between?
Mark
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  #2  
Old 05-05-2003, 08:29 PM
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JVMopar JVMopar is offline
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From what I've heard those HP numbers just aren't realistic.
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Old 05-05-2003, 08:34 PM
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fastmopars .inc fastmopars .inc is offline
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they were rated at 275 horsepower.
i don't think i would expect any less
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Old 05-05-2003, 11:25 PM
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rumblefish360 rumblefish360 is offline
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Chryslers dynoed the engines when they first made them. This without any accer.'s on the engine. In ex; P/S, A/C etc...Mounted on the engine.
The dynos today are much the same as years ago. The rated power is what they got, and what you should have as a rebuilt to spec engine. The results today would yeild a few HP better.
HP underateings happened later on in years when the Insurance companys started to pound on us. They change the ratings to gross instaed of net.
Believe it. You have a 275 HP engine.
Today, if you rebuilt the engine with todays pistons and rings as the only change, I would not doubt you seeing a 15+ HP gain.
Now add a 3 angle valve grind and stainlees valves etc....
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Old 05-05-2003, 11:36 PM
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74sport 74sport is offline
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Form what I have read and gathered the engines that Ma Mopar put out had the hp under rated for insurance concerns. 340's were rated at 275, except six-paks were at 290.
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Old 05-06-2003, 09:42 AM
spark spark is offline
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Thanks Guys, We will be popping in an Auburn gear diff and some 3:55s as soon as it gets back from the body shop. No more one legged smoke shows from me!!
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