what next? exhaust problem.
Thread Starter
Heel & Toe
Joined: Feb 2005
Posts: 16
Likes: 0
what next? exhaust problem.
I had true duels put on today. Thinking I had a bad exhaust dounut too.No, I have cracked exhaust manifold. What would you do? Headers? Long or short? My shop says short easier to hook up to new exhaust. What brands,what part numbers? I have a stock l48 4spd 3.08s Thanks 
Melting Slicks
Joined: Dec 2000
Posts: 2,198
Likes: 2
From: Eastern Connecticut
Most people will tell you to put on headers, but I'm not most people. I got some 2.5" cast iron manifolds from rockauto.com. They also sell stock 2" manifolds for about half the price of the vette shops. If you plan on keeping the rest of your motor stock, headers won't be worth the trouble. Joe
Burning Brakes
Joined: Apr 2000
Posts: 1,076
Likes: 0
From: Dixie TN
which side manfold do you need
Originally Posted by 78 anny vette
I had true duels put on today. Thinking I had a bad exhaust dounut too.No, I have cracked exhaust manifold. What would you do? Headers? Long or short? My shop says short easier to hook up to new exhaust. What brands,what part numbers? I have a stock l48 4spd 3.08s Thanks
Le Mans Master
Joined: May 2000
Posts: 6,493
Likes: 6
From: Bloomington MN
Cruise-In II Veteran
I'll be one of the guys who says go with full length headers. There are a lot of choices depending on quality, price, and performance. I would say try a set with smaller primaries like 1 5/8th inch and your motor will pick up a few HP, and even some MPG. I have not had any trouble with my headers. I have owned Hookers, and Doug Thorley. No problems with exhaust leaks or heat with either of these. Shorties are nice when space is tight, but there are full length headers to fit pretty much any C3.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by joe73vette
Most people will tell you to put on headers, but I'm not most people. I got some 2.5" cast iron manifolds from rockauto.com. They also sell stock 2" manifolds for about half the price of the vette shops. If you plan on keeping the rest of your motor stock, headers won't be worth the trouble. Joe
i have headers and a souped up engine.....if i had a stock or mildy hot engine i would consider those 2.5" cast iron manifolds into 2.5 true duals.
this is where the longer headers wind up
[IMG]
[/IMG]
Last edited by bobs77vet; May 13, 2005 at 11:36 PM.
Le Mans Master
Joined: May 2000
Posts: 6,493
Likes: 6
From: Bloomington MN
Cruise-In II Veteran
Originally Posted by bobs77vet
i have headers and a souped up engine.....if i had a stock or mildy hot engine i would consider those 2.5" cast iron manifolds into 2.5 true duals.
this is where the longer headers wind up
[IMG][/IMG]
this is where the longer headers wind up
[IMG]
[/IMG]
Le Mans Master
Joined: May 2000
Posts: 6,493
Likes: 6
From: Bloomington MN
Cruise-In II Veteran
Originally Posted by jasper711
Hey, there's no reason to get on his case! He's just trying to help.
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