Bigger Exhaust
Thread Starter
Instructor
Joined: Nov 2004
Posts: 136
Likes: 0
From: Northern VA
Bigger Exhaust
More horsepower.....I've got a 72 with the base engine and I'm at the point of getting a new exhaust and want to know more about headers and bigger pipes.
If I get headers for my car, doesn't the exhaust port on the head limit the size of the header? Is there an advantage to getting wider headers if the port on the heads is only 1 5/8"? Or do I just get 1 5/8 headers and run the rest of the exhaust at 2.5 or 3? I've found systems that are made for our cars, but different years/engines. I'm wondering if I can just mount up a 2.25 systems to my car when I add headers. I'd like to do it myself and I know that welding is the way to go, but I'm not sure I'll do it right away as I'm going to do some engine work next year. Budget is wide open.
Let me know what you think!
Roy
If I get headers for my car, doesn't the exhaust port on the head limit the size of the header? Is there an advantage to getting wider headers if the port on the heads is only 1 5/8"? Or do I just get 1 5/8 headers and run the rest of the exhaust at 2.5 or 3? I've found systems that are made for our cars, but different years/engines. I'm wondering if I can just mount up a 2.25 systems to my car when I add headers. I'd like to do it myself and I know that welding is the way to go, but I'm not sure I'll do it right away as I'm going to do some engine work next year. Budget is wide open.
Let me know what you think!
Roy
Melting Slicks
Joined: Dec 2001
Posts: 2,025
Likes: 1
From: Billings MT
You might want to consider a 2.5" system because it will leave you ample room to grow. As far as header primary size, on a 350ci motor that doesn't see much time above 7000rpm a 1-5/8 primary will work fine.
You can buy your bends from Summit as I think their prices are pretty good.
Good Luck, and post pictures.
You can buy your bends from Summit as I think their prices are pretty good.
Good Luck, and post pictures.
Melting Slicks
Joined: Sep 2002
Posts: 2,783
Likes: 2
From: Engineers do it better.
Originally Posted by 71redskin
hey not2new72, if you wanna really wake up the neighbors, go with headers and undercar chambered exhaust...that'll do it
I just installed chambered pipes with hooker headers....man they are loud....I am looking for mufflers 
Thread Starter
Instructor
Joined: Nov 2004
Posts: 136
Likes: 0
From: Northern VA
Originally Posted by 71redskin
hey not2new72, if you wanna really wake up the neighbors, go with headers and undercar chambered exhaust...that'll do it
Can I just get a pair of headers that attach to a bigger stock type exhaust? I don't want to get into welding and fitting up a ton of peices.
Melting Slicks
Joined: Jul 2002
Posts: 3,128
Likes: 3
From: Deltona (son of Deland and DAYTONA) FL
Originally Posted by desi
I just installed chambered pipes with hooker headers....man they are loud....I am looking for mufflers I know the feeling. http://home.swfla.rr.com/woot/images/Movie.wmv
fortunately it's a little quieter with the L48 back in.
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Safety Car
Joined: Mar 2005
Posts: 4,255
Likes: 82
From: Brampton Ont.
Originally Posted by desi
I just installed chambered pipes with hooker headers....man they are loud....I am looking for mufflers Thanks
Burning Brakes
Joined: Feb 2005
Posts: 977
Likes: 1
From: wash. dc
bigger exhaust
yes roy i have a BB with undercar chambered, its fine when cruisin but a nice growl when you mash into it... infact my radio stopped workin and i haven't even bothered with trying to fix it. the exhaust is music to my ears.