4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

should i buy b heads?

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Old 10-03-2008, 05:46 PM
  #11  
silverstang1996
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I'd just like to stay with b heads. C heads are overrated, poeple seem to look down on b heads when they have great potential, almost just as much as C heads when they are worked on. I even heard one person saying how b heads on the cobra are like NPI heads on a GT, the 99+ heads are way better, which the PI ones are, but the first C heads arent that much bettetr. $125 is a pretty good deal IMO they are fully assembled. these are the cheapest pair ive seen for myself atleast.
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Old 10-04-2008, 09:01 AM
  #12  
Stevecooper
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www.aftermidnightracing.com

They ported my brothers 4V B heads, here is the flow sheet (sorry the exhaust was cut of in the pic but you get the idea)

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Old 10-04-2008, 09:02 AM
  #13  
defconfire
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wow! those flow better than my 2v at half the lift.
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Old 10-04-2008, 09:03 AM
  #14  
Stevecooper
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Originally Posted by defconfire
wow! those flow better than my 2v at half the lift.
I know my SVO's flow 257~ at .500 those things are doing that at .300
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Old 10-04-2008, 09:06 AM
  #15  
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Old 10-04-2008, 09:11 AM
  #16  
defconfire
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Wait!? are those the stock valves? They got those numbers w/o even a valve job?
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Old 10-04-2008, 09:15 AM
  #17  
Stevecooper
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Originally Posted by defconfire
Wait!? are those the stock valves? They got those numbers w/o even a valve job?
stock valves with a valve job, you would be surprised how well the stokers do against aftermarket ones of the same size
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Old 10-04-2008, 10:18 AM
  #18  
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Originally Posted by pcs
so my question is what a ball park figure for 03-04 cobra heads, if anyone knows? all ive seen are ported ones for sale from a few place, all >$1000 plus a core. i found some for $550. good/bad deal?
The most I have ssen stock c heads go for is $450. You can buy a set on ebay at any time for that price
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Old 10-04-2008, 11:52 AM
  #19  
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Originally Posted by Stevecooper
Very good company.
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Old 10-04-2008, 03:09 PM
  #20  
silverstang1996
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Originally Posted by Stevecooper
www.aftermidnightracing.com

They ported my brothers 4V B heads, here is the flow sheet (sorry the exhaust was cut of in the pic but you get the idea)

thats why id like to stay with b heads. c heads flow around 330cfm on the intake w/ stage 3 port, so they arent a bunch greater, but i do understand more variables come up other than flow. I didnt end up buying the heads anyway, the guy said he had no idea what mileage/shape they were in so i wasnt chancing a pretty inevitable rip-off.
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