99 GT SOHC to DOHC

MikeyS281 · September 27th, 2006, 10:34 AM

I was thinking of going with the DOHC heads for my GT, if I do this will have to get a Cobra computer or anything? What are the different things that I would have to get in order for this type of mod to work right?

ChrisJ · September 27th, 2006, 10:39 AM

You need to splice in the 4 Valve maf and 4 Valve injectors into the harness you have now...

Then you need to have a chip burned for your GT computer with a 4 Valve tune on it...

Then from what I have heard/seen that is it...

I think you could use the 99-01 Cobra stuff...Maybe the Mach 1 Stuff (dont see why you couldn't)...I am not sure if you can use the parts from an 03/04 Cobra but you should be able to...

Hope this helps...

Drgnracin72 · September 27th, 2006, 11:17 AM

you will also have to have your block drilled and tapped, becasue the timing components on the 4v motor are different from the 2v motor. it will be more cost effective to buy a cobra motor. but you can amke a shit ton more power with the 4v. but then again if you dont plan on making more than 500 hp i wouldnt do it

MikeyS281 · September 28th, 2006, 12:44 PM

Originally Posted by drgnracin72

you will also have to have your block drilled and tapped, becasue the timing components on the 4v motor are different from the 2v motor. it will be more cost effective to buy a cobra motor. but you can amke a shit ton more power with the 4v. but then again if you dont plan on making more than 500 hp i wouldnt do it

Thanks man, I will go with a DSS short block for a Cobra and 4v heads.

MikeyS281 · September 28th, 2006, 12:44 PM

Originally Posted by ChrisJ

You need to splice in the 4 Valve maf and 4 Valve injectors into the harness you have now...

Then you need to have a chip burned for your GT computer with a 4 Valve tune on it...

Then from what I have heard/seen that is it...

I think you could use the 99-01 Cobra stuff...Maybe the Mach 1 Stuff (dont see why you couldn't)...I am not sure if you can use the parts from an 03/04 Cobra but you should be able to...

Hope this helps...

Thanks for the help man I appreciate it

September 27th, 2006, 10:34 AM	#1
MikeyS281 Regular 1999 Mustang GT 14.2 no mods, bald tires Join Date: Aug 2006 Location: Cincinnati, OH Posts: 110	99 GT SOHC to DOHC I was thinking of going with the DOHC heads for my GT, if I do this will have to get a Cobra computer or anything? What are the different things that I would have to get in order for this type of mod to work right? __________________ Once a Marine always a Marine! Semper Fi Marines!

September 27th, 2006, 10:39 AM	#2
ChrisJ I Do Stuff... 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 15,847	You need to splice in the 4 Valve maf and 4 Valve injectors into the harness you have now... Then you need to have a chip burned for your GT computer with a 4 Valve tune on it... Then from what I have heard/seen that is it... I think you could use the 99-01 Cobra stuff...Maybe the Mach 1 Stuff (dont see why you couldn't)...I am not sure if you can use the parts from an 03/04 Cobra but you should be able to... Hope this helps... __________________ My Junk www.myspace.com/cjobe

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