SVT Forums

99/01 Cobra Heads

Old 09-12-2006, 04:30 PM
  #1  
uofipilot
3rd Gear Member
Thread Starter
 
uofipilot's Avatar
 
Join Date: Feb 2006
Posts: 678
Default 99/01 Cobra Heads

What heads are on tthe 99/01 Cobras? I've got a 97, and I'm trying to figure out where the 15 extra ponies came from for the 99/01s. First thought was the heads, but I think heads would make more than 15hp. So anyway, what heads, and where does the power come from?

Matt
uofipilot is offline  
Old 09-12-2006, 08:44 PM
  #2  
michael12203
2nd Gear Member
 
michael12203's Avatar
 
Join Date: Jul 2006
Location:
Posts: 240
Default RE: 99/01 Cobra Heads

the heads flow a little better i believe cant rem where i read it but i believe that is where the 15 extra hp came from
michael12203 is offline  
Old 09-13-2006, 06:36 AM
  #3  
CarlessAndy
2nd Gear Member
 
CarlessAndy's Avatar
 
Join Date: Mar 2005
Location:
Posts: 396
Default RE: 99/01 Cobra Heads

B heads on the 96-98, C heads on the 99-04's i believe.
CarlessAndy is offline  
Old 09-14-2006, 03:47 PM
  #4  
yeayea0
2nd Gear Member
 
yeayea0's Avatar
 
Join Date: May 2005
Location:
Posts: 216
Default RE: 99/01 Cobra Heads

C heads is correct...a lil more aggressive cam made for some of the power
yeayea0 is offline  
Old 09-25-2006, 02:31 AM
  #5  
whty98
1st Gear Member
 
whty98's Avatar
 
Join Date: Sep 2006
Posts: 68
Default RE: 99/01 Cobra Heads

Didn't they also change the IRMC on the 96-98 by taking it off the 99-01.
whty98 is offline  
Old 09-25-2006, 11:51 AM
  #6  
freewilly
I ♥ Acer
 
freewilly's Avatar
 
Join Date: May 2006
Location:
Posts: 378
Default RE: 99/01 Cobra Heads


ORIGINAL: whty98

Didn't they also change the IRMC on the 96-98 by taking it off the 99-01.
they did away with the IMRC in 98 . so the 99 01 heads are totaly differnent head all together, so are the intakes, its impossible it swap over to newer head ,,well within ease anyhow.cause if you use the samr wiring harrness, the imrc computer is under the intake where the 99 dont have it at all. so if you leaft it unplugged you would sure to have an engine light on. the 96-98 heads had 16 ports total.the secondary ports would open like at 3500 rpms,below that the secondary flaps will stay closed giving it more tq.
freewilly is offline  
Old 09-25-2006, 03:53 PM
  #7  
uofipilot
3rd Gear Member
Thread Starter
 
uofipilot's Avatar
 
Join Date: Feb 2006
Posts: 678
Default RE: 99/01 Cobra Heads

Well then in that case, screw swapping heads. For what that would cost, I can get way more than 15 ponies. And wht the hell would ford go through all that work and design for a measly 15 hp? Maybe simpler and less likly to break without the differnet runners?


Matt
uofipilot is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GimpyHSHS
4.6L (1996-2004 Modular) Mustang
19
12-19-2023 01:12 PM
mustangheaven
Motor Swap Section
3
01-03-2016 11:20 AM
kevsgt
2005-2014 Mustangs
5
10-09-2015 10:12 PM
tj@steeda
Florida Regional Chapter
0
09-30-2015 08:04 PM
Drastang
4.6L (1996-2004 Modular) Mustang
2
09-30-2015 03:48 AM


Thread Tools
Search this Thread
Quick Reply: 99/01 Cobra Heads



All times are GMT -5. The time now is 03:05 AM.