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Old October 25th, 2009, 05:06 PM   #1
chumwon
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Default 351m Horsepower

wonderd if someone could help me with the amount of horsepower my 351m is pushing out with a 400 crank, bored .30 over to a 408, edelbrock intake, holley 4 bbl, and a bigger cam? If you have any guess it would be greatly appricated. Thanks
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Old October 25th, 2009, 08:13 PM   #2
deathbypsi
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Not tryin to sound like a dic but thats a pretty much impossible question to answer!

Seriously...not even close to enough info to make even a ballpark guess.Compression?Cam specs?timing?headers?exhaust?what size carb?head work?...I could go on.

Are you any good at dialing in a motor? You could give a guy a 800hp Cup motor right from Yates/Roush and he could have it putting out 250hp in 5min if he dont know what he is doing.


BUT...if I HAD to guess I would say at least 150hp.
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Old October 29th, 2009, 01:08 PM   #3
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probably not as much as you think, i got a 351m and it isnt very powerful and is very hard on gas
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Old October 29th, 2009, 01:14 PM   #4
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2hp just a guess
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Old October 29th, 2009, 01:28 PM   #5
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Find a local shop with a dyno.
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Old October 30th, 2009, 12:29 PM   #6
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Car Craft did a mild build on a 400 years back a got about 390HP.
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