full length headers question
Thread Starter
Joined: Dec 2008
Posts: 2,540
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From: Norwalk, CA
Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
full length headers question
Do any of you guys have full length headers and do they hit the floor of your cars and does it also need a Y pipe
Moderator
Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: full length headers question
If they're thirdgen headers they won't hit the floor, and they'll only require a Y pipe somewhere if you're planning on running single exhaust.
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From: Carson, CA
Car: '88 GTA, 90 Formula
Engine: 5.7 TPI, fed growth hormones
Transmission: 700r4 4u2?
Axle/Gears: 9bolt
Re: full length headers question
If you mean do they hit the ground, then the answer is yes, every speed bump and wash out the header flanges either scrape or worse.
I don't know of any pre-built y-pipes designed for our cars with long tubes, you're on your own.
TA
I don't know of any pre-built y-pipes designed for our cars with long tubes, you're on your own.
TA
Thread Starter
Joined: Dec 2008
Posts: 2,540
Likes: 0
From: Norwalk, CA
Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
Re: full length headers question
I am gonna run a single exhaust a american thunder cat back and were would i find the y pipe the ones i am looking at are for the third gen.
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: full length headers question
I think MAC used to make a system for Hooker Super Comps. Apart from that, anything with long tubes is going to be a custom job. If this is a street car, I'd stick with shortys.
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Thread Starter
Joined: Dec 2008
Posts: 2,540
Likes: 0
From: Norwalk, CA
Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
Re: full length headers question
They say the flowtech ones are the same as the summit brand ones is that true for i could get the summit brand would i also need a y pipe or no
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: full length headers question
Flowtechs aren't known for their outstanding quality. You'd be better off spending a little more money on something else.
Thread Starter
Joined: Dec 2008
Posts: 2,540
Likes: 0
From: Norwalk, CA
Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
Re: full length headers question
Are the headman good or what kind don't want to spend alot on them
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: full length headers question
Hooker 2055s are a popular choice. They have the AIR tubes for emissions, and they include the Y pipe in the price, which most of the others don't.
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