[4valvegt]

Im doing a 4 valve swap in my 01 GT, I compared my header gasket the the 4 valve heads and they look similar. My question is will 2 valve long tube headers work on my 4 valve heads or do they have different ports or is the 4 valve engine alot wider that the 2 valve? Anybody have any experience with this?

 

[F8L GT]

NO, the exhaust ports are different on a 4v.

 

[SWEET2KSTANG]

:no

 

[gray8188]

:no

 

[Boostang]

:no

 

[4valvegt]

Just wondering havnt had the manifolds off and they looked so similar on the outside. If I buy long tubes for the 4 valve will they match up to my catback? Or will i have to change out my whole exhaust system?

 

[F8L GT]

they will match up to your cat back if you get the correct mid pipe for the brand long tubes you are using. if you mix and match brands you mid have to do a little tweeking

 

[02gtmustang]

they should the mid pipes are the same just not the cat backs

 

[Boostang]

itll fit the mid pipe

 

[Renegaderacer]

mid pipes and cat backs will fit my magna packs came off a 4v.

 

[Smoothgrandmama]

those packs must have come off a mach. they dont make a pack cat-back for irs cars

 

[wishIhada5.0]

those packs must have come off a mach. they dont make a pack cat-back for irs cars

Thats a total injustice!!! lol but no 2v headers will not fit 4v heads

 

[Renegaderacer]

they did come off a mach it has a 125 shot and i bust his ass at the track so . i actually only have him by .05 same 60'

 

[sonicstang03]

no thoes headers wont fit

 

[dansgt]

i want 4valve heads...

 

[mrsinister2424]

those packs must have come off a mach. they dont make a pack cat-back for irs cars

wtf is up with your avi, it takes up half the page.

 

[Till]

i want 4valve heads...

stalked

 

[Smoothgrandmama]

Talk to fmr1 about it.

 

[dansgt]

stalked

sweet

 

[4valvegt]

I have a 4v teksid in my garage with 50k miles on it, Im lookin at getting the C heads and an 01 intake manifold and someday a 302 stroker kit and single turbo kit . But im stuck with N/A till pry next winter