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04-05-2007, 12:45 AM | #1 |
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Join Date: Oct 2006
Location: las vegas
Posts: 88
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Horsepower estimate???
I just got my engine back from the shop and was wondering if anybody knew how to give it a ballpark estimate as to how much power it's packin based on the the stuff thats on it.I dont know all the specs, but I do know its a ....
400 small block bored 40 over(408) World cast iron heads...Chamber size unknown to me Comp cam 218/226 duration at.050-----462/480 lift aluminum roller rockers Edelbrock rpm air gap intake holley 750cfm Thanks.
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04-05-2007, 12:52 AM | #2 |
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Join Date: Jan 2007
Location: CENTRAL,PA
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Re: Horsepower estimate???
World cast iron heads...Chamber size unknown to me. Find this out and we can get alot closer and maybe crunch some better #'s. I would venture a educated guess at respectable 425to450 hp depending on quench and better head info. Like I said just a fair stab at this point.
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04-05-2007, 12:54 AM | #3 |
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Re: Horsepower estimate???
I had a 383 with the same setup,and it was desk topped at 393hp 430lb ft. I used Sportsman II's. So my guess would be around the same. That cam will be milder in a 400 than a 383. PM Billa, He can do a desk top dyno for you, and he does an awesome job.
-Lance
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04-05-2007, 12:57 AM | #4 |
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Re: Horsepower estimate???
Billla is good with that deck top dyno from what I have heard. 400 will pull a few more ponies but not alot. Get the head info for him though to be more acurate. The came will feel milder but not perform milder.
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04-05-2007, 01:00 AM | #5 |
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Location: las vegas
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Re: Horsepower estimate???
thanks a bunch! Yea I gotta call the shop to see if they measured the combustion chambers... its also got flat top pistons if that matters.
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04-05-2007, 01:02 AM | #6 |
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Re: Horsepower estimate???
The more info you can provide the more acurate the outcome will be. Deck height, head gasket used ect. ect. the more the better.
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04-05-2007, 07:25 AM | #7 |
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Join Date: Nov 2004
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Re: Horsepower estimate???
What`s the C/R?
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04-05-2007, 09:42 AM | #8 |
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Join Date: Jan 2007
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Re: Horsepower estimate???
He still has to check with his shop on head specifics and compression ratio #'s
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04-05-2007, 10:27 AM | #9 |
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Join Date: Jul 2006
Location: Leander, Texas
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Re: Horsepower estimate???
Found this and it's free. Not as good as DTD but again, free.
http://www.hotroddersauctions.com/te...nlinedyno.html |
04-05-2007, 10:54 AM | #10 |
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Re: Horsepower estimate???
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