5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

GT 40p Heads

Thread Tools
 
Search this Thread
 
Old 05-20-2011, 06:28 PM
  #1  
roghoge
2nd Gear Member
Thread Starter
 
roghoge's Avatar
 
Join Date: Sep 2007
Location:
Posts: 264
Default GT 40p Heads

Will GT 40p heads work with bbk equal length headers? I know they don't work with all headers but I saw they worked with the bbk shorty headers so I wasn't sure. Not going to buy them if i'm going to have to spend a bunch of money on new headers so figured i'd make sure first. If it makes any difference I have a 95 GTS
roghoge is offline  
Old 05-20-2011, 10:35 PM
  #2  
ttocs
6th Gear Member
 
ttocs's Avatar
 
Join Date: Feb 2006
Location:
Posts: 6,936
Default

from what I have heard, the gains from equals to unequals is minimal if any and not worth the cost. Not sure if that is right as I am not a motor expert but when I was looking for headers that is what I was told.
ttocs is offline  
Old 05-21-2011, 12:18 AM
  #3  
AdderMk2
Banned
 
AdderMk2's Avatar
 
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
Default

No, they will not work with BBK equal lengths. You want FRPP or MAC "P" headers.
AdderMk2 is offline  
Old 05-21-2011, 12:20 AM
  #4  
stangmanmike33
 
stangmanmike33's Avatar
 
Join Date: Apr 2011
Location: KY
Posts: 40
Default

from what i hear, the difference is the spark plug angle, imo, id would say they should work, i know with some lt headers guys were having issues cause the headers have to fit closer to the block so they can find there way down underneath the car. but as for a shorty header equal or unequal, id say you should be fine.
stangmanmike33 is offline  
Old 05-21-2011, 02:02 AM
  #5  
roghoge
2nd Gear Member
Thread Starter
 
roghoge's Avatar
 
Join Date: Sep 2007
Location:
Posts: 264
Default

I did some more searching and found some stuff saying that if I got a shorty spark plug it would work (only need it for one of the spark plugs) and then spark plug wires at a 90 degree angle that those would give me the clearance. I also read that the MSD wires have bendable connections, is this true? Then I could just bend them so I could have the right clearance?
roghoge is offline  
Old 05-21-2011, 02:42 AM
  #6  
AdderMk2
Banned
 
AdderMk2's Avatar
 
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
Default

WILL NOT WORK

get FRPP or Mac "P" headers
AdderMk2 is offline  
Old 05-21-2011, 02:12 PM
  #7  
TrimDrip
FudgeDrip
 
TrimDrip's Avatar
 
Join Date: Jan 2009
Location: `
Posts: 3,101
Default

I doubt it with equal length. I have the un-equal bbks on mine and they work fine. I did have to put a 90 degree spark plug boot on number 7. My wires are MSDs and I still had to use the 90 degree boot on number 7. The do bend but, they won't make a turn like a different plug wire boot will.
TrimDrip is offline  
Old 05-23-2011, 03:03 AM
  #8  
Dj_Seph
4th Gear Member
 
Dj_Seph's Avatar
 
Join Date: Jul 2009
Location: Arizona
Posts: 1,127
Default

Won't work mate. And this is from someone who has already been there. Go the MAC route.
Dj_Seph is offline  
Old 05-23-2011, 05:08 PM
  #9  
camaroeater
4th Gear Member
 
camaroeater's Avatar
 
Join Date: Oct 2007
Location: Phoenix, AZ
Posts: 1,219
Default

Originally Posted by AdderMk2
WILL NOT WORK

get FRPP or Mac "P" headers
Just another reason to save more a get something better, unless your looking for just minimal gains. You could get some GT40X's but then again, there are better heads out there for the money IMO.
camaroeater 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
mustangheaven
Classic Mustang General Discussion
2
10-07-2015 10:23 AM
Drastang
4.6L (1996-2004 Modular) Mustang
2
09-30-2015 03:48 AM



Quick Reply: GT 40p Heads



All times are GMT -5. The time now is 09:30 PM.