I HATE my summit headers!!!!!!!!!!!!!!!!!!!!
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Senior User
Joined: Dec 2007
Posts: 170
Likes: 0
From: Gloucester County nj
I HATE my summit headers!!!!!!!!!!!!!!!!!!!!
had to get that off my chest its been bothering me for a WHILE. ok heres my situation, i got shorties, made up a y-pipe for those headers, now i CAN"T get the pass. side to seal up right at all i've dropped it realinged it , everything, if i had the money i would get LT or new shorties but im outta cash , please help, everyone else has had good luck with theirs? WTF?, this has been a prob for like 8 months, what can i do to seal this?thx jake
Tuned
Joined: Nov 2006
Posts: 260
Likes: 4
From: Massachusetts
I had a similar problem with Hedman Headers (from Summit) installed on '69 Mustang 351W. After reinstalling several times over several days, I finally thought to check the header mounting flange -- it was warped. I returned the bad header and got a replacement one...and right out of the box, it was also warped. I ended up having to deal directly with Hedman, and they mentioned something about a quality control problem. Finally got a new one that wasn't warped.
If yours is out of warranty...and is warped...you might be able to get a machine shop to true it for you.
Also, go for the expensive copper gasket for the header-to-engine seal.
If yours is out of warranty...and is warped...you might be able to get a machine shop to true it for you.
Also, go for the expensive copper gasket for the header-to-engine seal.
Posting Guru
Joined: Dec 2006
Posts: 1,639
Likes: 2
yeah i had the same problem i couldn't get either side to seal i ended up welding them on to the y-pipe but i couldn't get the welds right and they still leaked....... bought a set of dynomax longtubes and they work fine
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Senior User
Joined: Dec 2007
Posts: 170
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From: Gloucester County nj
Yeah its the ball and flange thing, they seal to the head great(got expensive copper gaskets)...IDK what i want to do, i want LT's but i need this to pass emission inspection, damm NJ, LT's are easy with no t-case and i could play with the exhaust then...
, i want to swap a 351 with a zf in so i got thinking to do, its a 96 mass air truck so idk if i need to change pcm or not i want mass air still, but for the time being i need to get rid of the leak, thanks for your suggestions ppl, i will stay posted
, i want to swap a 351 with a zf in so i got thinking to do, its a 96 mass air truck so idk if i need to change pcm or not i want mass air still, but for the time being i need to get rid of the leak, thanks for your suggestions ppl, i will stay posted
Junior User
Joined: Dec 2004
Posts: 86
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From: H-Town
Not to be a *****, but typically you get what you pay for. It's usually better to wait a little longer to get something rather than settling for something cheaper. Just my 2 cents
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Senior User
Joined: Jun 2008
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From: KFalls
What thickness of steel are you using for the flanges on the Ypipe? if its too thin it might be warping when you weld it, that would make it not seal.
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Thread Starter
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Senior User
Joined: Dec 2007
Posts: 170
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From: Gloucester County nj
i think the flange is good, i had it lined up when i first did it then 3 days later it was leaking, its just annoying when you work full time and go to school, at the end of the day when your done fixing other people's cars , your just beat and i don't want to mess with it, its annoying, thanks for all the suggestions, but for 94 5.0 you don't need to point out the obvious, genius, my two cents(i'm not a baller right now). i will keep you's posted. i want LT"s if i can somehow get emission friendly
Junior User
Joined: Jun 2006
Posts: 82
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I'm having the same problem with my summit headers. I can't get either side to seal. I think it has to do with the way the stock manifolds distorted the y-pipe flange. It's obvious that the summit headers flange fits slightly different than stock and it's making it impossible to seal.
I think the only solution is to weld up new y-pipe flanges so they fit the summit headers flange perfectly
I think the only solution is to weld up new y-pipe flanges so they fit the summit headers flange perfectly
Freshman User
Joined: Sep 2008
Posts: 43
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well my buddy bought a set of these a while back and he didnt have any problems with the y pipe seal. but another buddy did although his problem was that they kept loosening up. i got a set and i cut the ball on the end bigger for more flow and i haven't had one problem with em at all.
Senior User
Joined: Oct 2003
Posts: 480
Likes: 1
From: Elyria, Ohio
I just installed Summit headers (Patriot badge) on the 95 5.0L. I have leak on pass side that seems to quiet when hot. I had to work Y pipe alot when tightening. I will soon replace Y-pipe for cat replacement. If new pipe is a problem; I intend to cut crossover;install flanges to header and reweld crossover to the new shape. I believe my current pipe is warped to the stock manifolds.
Post Fiend
Joined: Nov 2008
Posts: 23,849
Likes: 20
From: McKenzie River
Did a set of Summit shorties on friends 94 F-150/351w, no problems except having to "persuade" one side of the Y-pipe to match up. Same with the Summit shorties on my F-250/460 minor persuasion to get y-pipe to seal, no other leaks or problems afterward.
Post Fiend
Joined: Nov 2008
Posts: 23,849
Likes: 20
From: McKenzie River
If you are talking to me, those were the stock Y-pipes we had to force slightly.