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351 cleveland rebuild??

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Old Jul 7, 2007 | 05:09 PM
  #41  
my77stang's Avatar
my77stang
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From: Citrus County, FL
Default RE: 351 cleveland rebuild??

atom, this link is for you buddy

http://mpgheads.com/PortPlate/PortPlateDetail.htm

and there you have it


67, we didnt do ANY porting or welding ont he head, thats completely against the rules - just had to install smaller seats because regulations stated the largest valves allowed were x.xxx and the stock 4bbl valves were larger (all the chevy guys are hogging their heads out to get that big, and here we are downsizing).

i'll tell you why it grenaded, its because the owner of the company was a dip**** and wanted all 8 cylinders sleeved so we could go with a huge overbore, then cemented half the damn block. did i mention this was a REAL boss 302 block too? i wanted to cry watching it get molested like that . if he would have allowed us to keep it at a .030 bore we would have been just fine. going up against #906 chevy heads (later model vortec heads, which are the best cast iron gm has ever made) we were dominating - and that was the only ford there because even the gt40's cant keep up with the 906 heads
Old Jul 7, 2007 | 05:39 PM
  #42  
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67mustang302
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Default RE: 351 cleveland rebuild??

That sucks to trash a block like that! Cleve heads can be good for stock/mild modclass racing, but I really dislike them for street performance. The ports are all wrong for a street performance head if you want to get the best out of an engine. Like I said before, they work ok, but I get aggrivated when people think that stock Cleve heads are the greatest thing since sliced bread. And as far as GT40 heads, they are the best Windsor style head Ford made and work with mild street performance stuff, but yeah, they're just not enough to compete with some of the stockGM heads. GM has really gotten the formula right with the new LS heads though, good flow, good velocity, work very well right out of the factory. Take a stock LS1 and swap in a cam and a better manifold/exhaust and you go from 315hp to well over 400 easily, streetable on pump gas without even touching the head(except maybe springs for the bigger cam) or having to turn a lot of rpm. The same can't be said of small block Fords unfortunately, it takes a fair bit of head work to achieve that
Old Jul 7, 2007 | 06:00 PM
  #43  
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atomsk680
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Default RE: 351 cleveland rebuild??

ORIGINAL: my77stang

atom, this link is for you buddy

http://mpgheads.com/PortPlate/PortPlateDetail.htm

and there you have it
cool, thanks for buying me one, i will PM you with my shipping info

nah those look cool but im broke for now
Old Jul 7, 2007 | 06:35 PM
  #44  
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my77stang
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Joined: Dec 2006
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From: Citrus County, FL
Default RE: 351 cleveland rebuild??

sounds like a wise investment for a 20/20 gain in the oomph dept.
Old Jul 8, 2007 | 01:05 AM
  #45  
IM RICKY BOBBY's Avatar
IM RICKY BOBBY
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Joined: May 2007
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Default RE: 351 cleveland rebuild??

ok so it official i am going to rebuild the cleve.... honestly i was really leaning in that direction i was just looking for some support behind me...

for those who have rebuilt a cleve or knows someone who has, what was the combo used, obviously CHI heads are overwhelming popular, regardless if Edelbrock is stealling the design from CHI if there pritty much equal im gonna go with the cheaper of the two, i feel that Edelbrock is just as reputable.

anyone have any advice on manifolds or anything else that would be helpful... thanks
Old Jul 8, 2007 | 01:22 AM
  #46  
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rmodel65
Yukon Cornelius
 
Joined: Oct 2005
Posts: 11,812
From: deep in the heart of dixie GEORGIA
Default RE: 351 cleveland rebuild??

the parker intakes are the best out there http://www.ausfordparts.com/TFC4V.html


and these heads are very very nice http://www.ausfordparts.com/afd4v.html

Old Jul 8, 2007 | 01:33 AM
  #47  
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my77stang
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Default RE: 351 cleveland rebuild??

arent those CHI ripoffs too?
Old Jul 8, 2007 | 01:39 AM
  #48  
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rmodel65
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Joined: Oct 2005
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From: deep in the heart of dixie GEORGIA
Default RE: 351 cleveland rebuild??

i dont think so but the 2v from afd support 620 out of the box and the4v 680hp
Old Jul 8, 2007 | 01:40 AM
  #49  
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my77stang
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From: Citrus County, FL
Default RE: 351 cleveland rebuild??

that intake made my pants sticky
Old Jul 8, 2007 | 02:42 AM
  #50  
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67mustang302
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Default RE: 351 cleveland rebuild??

Actually, CHI heads are NOT overwhelmingly popular(at least not in use on vehicles), most people don't get them because of the price(which is foolish, because the power they make actually makes them a better deal than any other head for the hp/$$), but they are simply the best bar none. As far as power potential, even the small CHI head with the 185cc intake runner is capable of 600+hp EASY(ie Engine Master's challenge made 605 with a flat tappet cam and pump gas, so imagine the power with a comparable roller cam). You could always get a bigger head, CHI does make them quite a bit bigger than that(up to 258cc out of the box, and they have CNC porting available as well. If they can get a 366 to spit out 600hp with a 185 runner, imagine what it'd do in race trim with a 258 runner!!!). And as far as performance, the CHI head is quite a bit ahead of Edelbrock's or anyone elses for that matter. You get what you pay for really, you spend less on heads you'll make less power, you spend more on heads, you'll make more power. It depends on how much you're willing to spend and how much you really want the power. If you have the money I say go with the CHI heads/intake, you'll be lightyears ahead of the competition



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