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  #1  
Old 12-31-2013, 08:16 PM
Treims831 Treims831 is offline
 
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351m rebuild

Wanting to rebuild my 351m out of a 78 f100. What should I do for a performance upgrade? Making it a 400 worth it and if so how to do it? Already has edelbrok carb and intake with dual exhaust and headers.
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  #2  
Old 12-31-2013, 08:19 PM
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Go whole hog and make a 434 out of it

All kidding aside, a pair of closed chamber Aussie heads along with the correct pistons, cam etc. will make a real nice engine.

Check out Tim Meyer Inc...

http://www.tmeyerinc.com/400ford.html
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  #3  
Old 12-31-2013, 08:22 PM
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Would I need to bore the engine at all for that kit?
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Old 12-31-2013, 08:24 PM
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Would I need to bore the engine at all for that kit?
You'd need to check it first and I don't know if he has pistons in std. bore.

Typically once you pull your engine and measure things, normally an overbore is in order
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  #5  
Old 12-31-2013, 08:32 PM
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Would you have a hp guess for that upgrade?
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Old 12-31-2013, 08:34 PM
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Would you have a hp guess for that upgrade?
If you read the post I linked....it gives you a dyno numbers tab.

388/460

Which is pretty damn good for what the $ is.
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Old 12-31-2013, 08:38 PM
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Pretty good numbers! Thanks for the help
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Old 12-31-2013, 08:39 PM
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Pretty good numbers! Thanks for the help
Anytime!...and you can make a great engine out of one of these boat anchors.
Shoot Tim and email or phone call, he is very helpful!
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Last edited by DNFXDLI; 08-01-2014 at 07:49 PM.
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  #9  
Old 11-18-2014, 09:09 PM
Treims831 Treims831 is offline
 
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So I got the engine build which is now a 400m. I cannot get the 78 f100 to idle properly. The fuel pressure is good, there is a new carb on it (edelbrock 600). It will idle high as then it will want to die. When I get it idling not too bad it pretty much stalls when I put it in gear and it misfires. Seems to smooth out when RPMs are up as it has lots of power it's just the idle. It also doesn't want to idle at all on factory timing setting, I have the timing as high as possible without pinging so that it will run. Any ideas?
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  #10  
Old 11-18-2014, 09:11 PM
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Have you checked your timing and are all the vacuum lines ok?....and just so you know, it will be a 400...no M on it
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