exhaust header identification.
08-17-2013, 09:30 PM
#1
Thread Starter
Join Date: Aug 2013
Location: Maryland
Posts: 38
exhaust header identification.
There is an extra set of headers in the trunk of the '86 GT my son just bought---and I am going through it for him.
The owner said something about replacing the heads--but I doubt that as they look original--and with the speed density setup, they wouldn't help much, right?
So I assume he meant he replaced the headers--and that would explain the extra set in the trunk. How do I identify the headers to know what they are? If I look into the outlet end, I see four tubes coming together in a reinforced section just above the outlet. Does that help ID them?
The owner said something about replacing the heads--but I doubt that as they look original--and with the speed density setup, they wouldn't help much, right?
So I assume he meant he replaced the headers--and that would explain the extra set in the trunk. How do I identify the headers to know what they are? If I look into the outlet end, I see four tubes coming together in a reinforced section just above the outlet. Does that help ID them?
08-17-2013, 09:54 PM
#3
5th Gear Member
Join Date: Jul 2012
Location: ohio
Posts: 3,628
Get a pic of the front part of the heads if you can or look on the front and back to see id you can see any bars , If there are 3 bars they are the gt40 heads. If there are 4 bars I believe they are gt40p heads. If there are no bars then you would need to get some numbers off the heads likely from under the valve cover , unless they are a good set of aftermarkets and they ususally have the brand engraved into the front.
08-18-2013, 06:47 AM
#4
Thread Starter
Join Date: Aug 2013
Location: Maryland
Posts: 38
Thanks for the replies--
Of course i should have realize that this thread would be useless w/o pictures. I'll try to take some later today, and post them.
I still am looking for an answer to my question about the benefits of major mods to a speed density SEFI--would they benefits not be rather limited since the injection system is mapped to what the fuel requirements "should" be? Or do I misunderstand the speed density set up?
Of course i should have realize that this thread would be useless w/o pictures. I'll try to take some later today, and post them.
I still am looking for an answer to my question about the benefits of major mods to a speed density SEFI--would they benefits not be rather limited since the injection system is mapped to what the fuel requirements "should" be? Or do I misunderstand the speed density set up?
