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Unread 12-14-2012, 07:19 AM   #1
ejeter45
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1987 FSJ Wagoneer 
 
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Exhaust Headers

All,
I am currently building a 87 Grand Wagoneer..Allready had engine built (approx 360 HP)

I am looking for headers....or some header advice
I dont mind spending money for a good part
the only ones that Summit will say fits for sure is the Dougs headers $850
and that is just toooo much......
I am looking for ceramic coated to help keep the heat down

Does naybody know of any headers that fit?
there are several sets but not for the 87 and summit will not confirm they fit
I spoke with Headman yesterday and they said 99256 or 99250 But they are not listed as fitting (not sure the guy on the phone knew what he was talking about he wasnt 100% )

And it looks like there was possibly a frame change before 87

What headers do you have and do they fit ?

Any ideas are very appreciated ?

Thanks
Eric

83 CJ-7
87 Grand Wagoneer

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Unread 12-14-2012, 09:36 AM   #2
pleontks
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everyone i've known with headers on their FSJ sacrificed their front driveshaft to clear the exhaust.
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Unread 12-14-2012, 10:36 AM   #3
realmccoy
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I ran headman headers on mine for years ,
Didnt have modify anything to run them
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Unread 12-14-2012, 03:11 PM   #4
paintballtruck
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ive got headman headers on my 79 j 10 and they fit no problem
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Unread 12-14-2012, 03:30 PM   #5
RockRollin
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Thorley headers http://www.bjsoffroad.com/prod-650.htm . Expensive but from everything I've read well worth it
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Unread 12-14-2012, 04:53 PM   #6
BJ's Off-Road
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Quote:
Originally Posted by RockRollin View Post
Thorley headers http://www.bjsoffroad.com/prod-650.htm . Expensive but from everything I've read well worth it
Thanks for the link, these are great headers and well worth it.

You will not have to sacrifice your driveshaft to run them. They tuck up real nice especially in the 1980-1991 FSJ's, a couple years ago we had them redesign the ypipe for these years.
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Unread 12-19-2012, 09:57 AM   #7
wmdeal
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I'll second the Doug Thorley headers. They do sound nice. I'll send you a PM about the set that I have.
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Unread 03-09-2013, 06:12 PM   #8
mkimball72
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So which headman headers did you guys run? And they just bolted right up to both the heads and the y?

Last edited by mkimball72; 03-09-2013 at 06:26 PM..
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Unread 03-09-2013, 06:53 PM   #9
RockRollin
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The only headers that still use the factory y-pipe were the Edelbrock, and they have been discontinued. IMO the use of the stock y-pipe negates the flow of any headers, the y-pipe is the bottle neck even in the stock system. You would be better off porting the first bend in the stock manifolds and open up after the y-pipe to a 2-1/2" exhaust.
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Unread 03-09-2013, 09:40 PM   #10
mkimball72
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Quote:
Originally Posted by RockRollin
The only headers that still use the factory y-pipe were the Edelbrock, and they have been discontinued. IMO the use of the stock y-pipe negates the flow of any headers, the y-pipe is the bottle neck even in the stock system. You would be better off porting the first bend in the stock manifolds and open up after the y-pipe to a 2-1/2" exhaust.
Appreciate it.
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Unread 03-14-2013, 03:55 PM   #11
USAFfsj
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Hedman headers

I ran hedman headers on mine, true duals. I had to do custom bends to make it work but it did. sounds good and good power. I paid 350 or so for non ceramic, non issue other than the rust after awhile. Of course i live in PA, everything gets rusty no matter what.
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Unread 03-16-2013, 07:48 AM   #12
mkimball72
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I'm not looking for the slight performance gain u may see at street rpm's. I just want to ditch my stock exhaust and the emissions labyrinth under my hood and didn't want to run duals. Appreciate your input.
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Unread 03-16-2013, 10:33 AM   #13
jeepdj5
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Use the manifold! Then u won't be burning plug wires

Sent from my fsj Cherokee chief using JeepForum
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Unread 03-16-2013, 01:53 PM   #14
BJ's Off-Road
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Quote:
Originally Posted by jeepdj5 View Post
Use the manifold! Then u won't be burning plug wires
Use the proper plug wires and good headers and this will never happen.
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Unread 03-16-2013, 10:47 PM   #15
super98lsc
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I'm goin thorleys from bjs.... For the across the board gain why not, bolts up clean etc.
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