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View Poll Results: Which Header to you prefer
Headman Header 42 23.73%
Doug Thorley 93 52.54%
Edelbrock 28 15.82%
Another 14 7.91%
Voters: 177. You may not vote on this poll

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  #21  
Old 01-18-2008, 11:16 AM
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badaboom badaboom is offline
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Doug Thorley Tri-Y.
I have a set for the FSJ 360/401 AMC with Smog air holes sitting in the garage. Most will work, its design can help. I also like to have a pretty thick flange on the header to the engine head. I have also run a set of advance adapter headers I was very happy with but that was on a chevy engine.
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  #22  
Old 01-18-2008, 04:18 PM
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mattmopar440 mattmopar440 is offline
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I know there's the good type of manifolds and then there the bad type, where the pipe leaves out the back instead of the middle does anyone notice a idle sound and torque
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Quote:
Originally Posted by Heavy_Metal_Thunder_81
Inferior Chevy



Last edited by mattmopar440 : 01-18-2008 at 04:21 PM.
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  #23  
Old 01-18-2008, 06:25 PM
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Quote:
Originally Posted by 78indian
thorley headers - $550 - $800
headman - $150

thorley headers might be nice but for $600 more, they could be gold plated i wouldn't pay that much more for what maybe 5 extra ponies and 1 mpg if any at all.
i wish i had money like yall(yous guys-for the yanks) i would invest it in somthing that makes a diference.
hmm.... i can get a detroit locker and a set of hedmans for what you pay for crome!


Yeah that is funny, because with Hedmans you get what you pay for, paper thin flanges, mismatched ports, crappy welds, low quality gaskets, Etc. Be sure to order extra port gaskets with those hedmans, you'll need them!
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  #24  
Old 01-18-2008, 07:23 PM
Ronson Ronson is offline
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I have a Thorley on my daily driver that I haven't touched in four years. It just recently started to leak, which is decent even with a stock manfold with an aluminum head.
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  #25  
Old 02-18-2008, 10:16 PM
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Quote:
Originally Posted by BRUTUS
headman because it was cheap! No noticable gains in gas mileage, HP or torque.

X2 and also I hate them and they will not seal up no matter what I do. I would never waste the money on them again.
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  #26  
Old 02-19-2008, 12:09 AM
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gwinn gwinn is offline
360 AMC
 
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I've been running Edelbrock 50-state legal headers for 6 years. I've also had an engine overheating problem for 6 years. I have tried numerous fixes to cool the engine. My next one is to have the headers ceramic coated to keep the heat on the inside until it leaves the tailpipe. $350 at Jet-coat including the y-pipe. The $700 headers are shipped with a quality ceramic coating. If this is the primary problem, a lot of grief could have been spared if I put a few more bucks into them initially.
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  #27  
Old 02-19-2008, 01:15 PM
2003 mcs 2003 mcs is offline
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Quote:
Originally Posted by jepj2000
X2 and also I hate them and they will not seal up no matter what I do. I would never waste the money on them again.

Who the heck voted for Headmen? Mine are coming off and new manifolds going back on. I will never buy Headmen again-junk, what a complete waste of money and they were their top of the line (ceramic coated?) headers.
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  #28  
Old 02-19-2008, 05:25 PM
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I have a set of dougs, but haven't gotten around to putting them on yet. prob look at those bolts and copper gaskets.
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  #29  
Old 02-19-2008, 09:45 PM
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Quote:
Originally Posted by jeeping1974
...i finally changed over to studs and am hoping that that will help with the problem.

Where'd you get the studs? Is it a universal stud or AMC specific?
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  #30  
Old 02-20-2008, 09:42 AM
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For those of you who have headers with the thin flanges or even with thick flanges and have to retorque them or run special bolts, get these:

http://bjsoffroad.com/cartgenie/prod...pid=583&cid=16

These are a not gimmick, they really work well. I have used them for years and once you put them on, you torque them once and never touch them again. They are thick to make up for a little bit of a warped flange and work really, really well.
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  #31  
Old 04-15-2008, 07:03 AM
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Heavy_Metal_Thunder_81 Heavy_Metal_Thunder_81 is offline
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Ive got a set of headers on my Cherokee, I dont know who makes them but theyre not hedmans, i do know that. They do leak at one spot but I think a new gasket will solve that. The flange looks pretty beefy too. Is there any way to ID certain headers???
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  #32  
Old 04-15-2008, 11:25 AM
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Charlie_B Charlie_B is offline
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TPI,
I see where the Thorleys are listed as a BJs Exclusive on the site. Is there a limited quantity?
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  #33  
Old 04-15-2008, 12:12 PM
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HARDCORE pacer HARDCORE pacer is offline
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66-70 have square exhaust ports on the 290,343,390 The hookers are junk for this reason they cut the rectangle in the laser then let some little otherworldly hack go at them with a die grinder I had a fight with them (holley owns hooker) for 6 months regarding the flanges on their header and I know lots of other amcers had issues as well. If you want a good set of headers try to find a set of Kaslers. they are about the best but have been out of production for a number of years, hooker bought them and discontinued the design.
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  #34  
Old 04-15-2008, 12:37 PM
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I've only had to replace one gasket on my Jeep with my hedmans. Before I started repairing the body it was my DD for 3 years.
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  #35  
Old 04-15-2008, 03:13 PM
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Menace Menace is offline
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Quote:
Originally Posted by Heavy_Metal_Thunder_81
Ive got a set of headers on my Cherokee, I dont know who makes them but theyre not hedmans, i do know that. They do leak at one spot but I think a new gasket will solve that. The flange looks pretty beefy too. Is there any way to ID certain headers???

HMT
Most header Mfg's stamp a number into the port flange. Sometimes that number can be hard to see unless the headers are off though. If you can find that number I might be able to tell you who made them.
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  #36  
Old 04-15-2008, 11:28 PM
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TPICherokee TPICherokee is offline
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Quote:
Originally Posted by Charlie_B
TPI,
I see where the Thorleys are listed as a BJs Exclusive on the site. Is there a limited quantity?

Not limited, when we sell out, we'll buy more....
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  #37  
Old 04-16-2008, 03:35 PM
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headman's are JUNK!

thin flanges that are not flat from the factory, bird-poop welds, and over all crappy fit. of course, the ones i got were for an SBC, but quality won't be any different from the AMC stuff. i went with Flowtech's instead and the build quality is a thousand times better then the headmans.

Al
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  #38  
Old 04-16-2008, 03:38 PM
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Charlie_B Charlie_B is offline
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^^I think Ive already said it...but X2..big time

I cant wait until i have the money for a set of thorleys
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  #39  
Old 08-09-2008, 09:28 AM
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I've been happy for the most part with my Thorley headers. After having no trouble for years. The gaskets started to leak. I had to add some weld in some corners to get them to seal with MrGasket Ultra Seal Gaskets. At the time I was in a pinch. And needed to get it sealed to go to the dunes. I didn't have time to order Thorley gaskets.



Also I had to do some major grinding to make them clear the sparkplugs with Edelbrock heads.

Larry
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  #40  
Old 08-09-2008, 10:45 AM
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I had the Hedmans on my 83. All the "joy" of headers without spending big $$$. I re-flattened the flanges and safety wired ALL the bolts and they settled down and stayed leak free for reasonable periods of time.

Your MPG and performance gains come from whats behind the header as much as from the headers themselves. If you run a 2.25" dual or 3" single exhaust with GOOD muffler(s) you will see a marked improvement over the OEM setup.
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