Haven't heard of any warping issues before.
McJack Headers
Thread Starter
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
McJack Headers
Has anyone had any problems with Mcjack headers warping. I bought a set of short headers from a forum member and today I took them to a muffler shop for install. The shop owner called me later and he could not get the headers sealed properly and checked them with a straight edge and found the warping. The muffler guy thought the metal on the headers was too thin where they bolted to the heads. It does not appear these headers were abused by the previous owner. Any thoughts are ideas are appreciated.
Drifting
Joined: Jul 2008
Posts: 1,873
Likes: 27
From: Sonora CA
I have McJacks on my 73 L48 and I have not experienced any problems with the flanges leaking. The flanges are,(on mine) 3/8" thick...
You need to actually see the headers themselves. to determine what the problem is. Go to the source, ask Jack himself. send pics...
M2C Steve
You need to actually see the headers themselves. to determine what the problem is. Go to the source, ask Jack himself. send pics...
M2C Steve
Thread Starter
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
Thanks everyone for the replies. To gdh, the headers are stamped McJacks and the forum member said they were McJacks however, sometimes I know how that goes. I don't believe for 1 minute the forum member duped me, but I am a very trusting person. And to driveshaft, I think this is where the warping is. I will definately get in touch with McJacks and see if they can be salvaged.
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Thread Starter
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
I will thanks. This is what the muffler shop showed me. Muffler guy also said this is common with cheap headers. I almost choked. I told him they might look cheap to him but in no way cost wise were they cheap.
Thread Starter
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
For sure. This guy has never worked on my vette but has worked on some of my company vehicles. The muffler shop that installed true duals on my vette also does a lot of muscle car and rod work but is always bitching about the problems that go with headers. He is getting sort of old (probably my age). His ideas about headers is kind of odd since a lot of his work load is with cars that might want headers. But maybe thats why he thinks like he does.
Le Mans Master
Joined: Jul 2000
Posts: 6,663
Likes: 162
From: columbia city in
in the pics the headers dont look bad .when i was racing when the headers warped i would cut them between the clyinders .they always sealed up.i would call mcjacks and ask them what gaskets they would do.http://www.summitracing.com/search/D...FaYDQAodN0AcTg
Racer
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
in the pics the headers dont look bad .when i was racing when the headers warped i would cut them between the clyinders .they always sealed up.i would call mcjacks and ask them what gaskets they would do.http://www.summitracing.com/search/D...FaYDQAodN0AcTg
Thread Starter
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
I have sent the forum member I bought them from two messages being very careful not to accuse him of intentionally selling me a bogus part. However after two messages and no response, I'm starting to wonder if he did know.I have also sent an e-mail with pictures to Jack at McJacks to see if he feels anything can be done to salvage these headers. Terry82 had a good suggestion and I might have to try it if nothing else works.
Thread Starter
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
Yeah, actually Jack did not think the warping was hat bad and said he could try to work with them but he wouldn'n guarantee any success plus He would have to charg for the work. In he meantime, I got with another muffler shop and am going to get the car to him this comming week. The shop owner feels he can do something with it. By the way, the forum member contacted me and did offer to give me a refund if things don't work out right. Thanks for everyones help.
