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Old Oct 1, 2007 | 05:45 PM
  #1  
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From: Newfoundland, Canada
Car: 1991 Pontiac Trans Am GTA
Engine: V8 305
Transmission: Automatic Transmission
Header recommendations

Got any recommendations for headers for a stock 92 bird 305 tbi(with chip)
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Old Oct 1, 2007 | 07:44 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Header recommendations

Since you're in AB still (right?) You don't have to worry about air tubes and whatnot. Are they still there and functional?
I got the Hedmann 68470 headers and y-pipe 18470 (one of those part #'s is wrong I think....) at MOPAC. $150 each I think it was.
The hooker 2460 is the other main option, comes with a y-pipe, but it's a bit more $$. Check the sticky in the exhaust forum for the low-down on your choices.
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Old Oct 1, 2007 | 07:56 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Hooker 2460HKR don't come with a y-pipe, but a (crappy) $US150 y-pipe is available.

It's the Hooker 2055HKR that come with a y-pipe. Best headers out there, IMHO.
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Old Oct 2, 2007 | 08:52 AM
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From: Newfoundland, Canada
Car: 1991 Pontiac Trans Am GTA
Engine: V8 305
Transmission: Automatic Transmission
Re: Header recommendations

How many would I need, what would be a time frame for a mechanic to install. I know a bit about cars, but only in the stock version, lol, the mods is where I get a litttle lost
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Old Oct 2, 2007 | 09:12 AM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Header recommendations

For one car? You will need one (1) set of headers (comes with the left and right header), and one (1) y-pipe kit. If you want to call it a kit. It may come with a few clamps and whatnot.

Oooh, i'd plan on 3hrs labor, at ~$80/hr. That'd be a minimum i'd guess. Check with Carline muffler in the NE. I can dig up the guys name, but he installed my y-pipe, since it needed to be cut and modified (add 3" pipe instead of 2.5", and tweak to fit in the SFC's).
That cost me $180 I think, including $50 for the mandrel bend and pipe. I had already installed the headers though.
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Old Oct 2, 2007 | 11:12 AM
  #6  
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From: Norwich, CT
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Re: Header recommendations

Originally Posted by Sonix
Since you're in AB still (right?) You don't have to worry about air tubes and whatnot. Are they still there and functional?
I got the Hedmann 68470 headers and y-pipe 18470 (one of those part #'s is wrong I think....) at MOPAC. $150 each I think it was.
The hooker 2460 is the other main option, comes with a y-pipe, but it's a bit more $$. Check the sticky in the exhaust forum for the low-down on your choices.

I agree with Sonix.

So far, I have good things to say about
the Hedman #68481 "Shorties." They are
outfitted with the EGR air injection untop
of the header primaries.

The only difference between the 68470's
& the 68481's is one has the AIR injection,
and one does not.

I believe the headers and Y-pipe ran
about $485.00 and it bolted up with no
modification.

Ive heard nothing but good things from
the Hooker kit as well.. you can't go wrong
with either one!
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Old Oct 3, 2007 | 09:17 AM
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From: Newfoundland, Canada
Car: 1991 Pontiac Trans Am GTA
Engine: V8 305
Transmission: Automatic Transmission
Re: Header recommendations

How much of a horsepower upgrade will i be getting?
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Old Oct 3, 2007 | 03:47 PM
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From: Bakersfield, CA
Car: 91 Z28
Engine: 383 SuperRam
Transmission: ProBuilt 700r4
Axle/Gears: G92 3.23
Re: Header recommendations

forsale--->Hedman Street Headers with A.I.R. + Dual Cat Y-Pipe JET HOT coated
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Old Oct 5, 2007 | 05:08 PM
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Re: Header recommendations

https://www.thirdgen.org/forums/exha...ker-super.html
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Old Oct 5, 2007 | 05:12 PM
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From: Pittsburg and Wichita, KS
Car: 1988 Camaro
Engine: 305 5.0L....355 being built
Transmission: 700r4
Axle/Gears: 2.73 non-posi GM 7.5" 10 bolt
Re: Header recommendations

edelbrock TES headers and y-pipe, about $400 american
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Old Oct 5, 2007 | 06:11 PM
  #11  
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Car: '84 Camaro Z28
Engine: L69
Transmission: 700R4
Axle/Gears: 3.73
Re: Header recommendations

I agree with 88_SC_305. I have the edelbrock TES headers/y-pipe and its worked well for me. You can expect around a 10 hp increase at the wheels.
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Old Oct 5, 2007 | 11:02 PM
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Header recommendations

Edelbrocks are one step above stock manifolds, while most everything else is a few steps ahead. I discuss header choices in my sticky post in the Exhaust forum.

If you insist on crippling your engine with Edelbrocks, at least get the ones made for a TPI engine. The TBI/LG4 headers are smaller and have a bad y-pipe compared to the TPI ones.

I'd recommend the Hooker's, 2055's or 2460's.
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Old Oct 6, 2007 | 01:42 PM
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From: Newfoundland, Canada
Car: 1991 Pontiac Trans Am GTA
Engine: V8 305
Transmission: Automatic Transmission
Re: Header recommendations

twith the hookers ($439.95 usd at summit) the most increase i will get is 10hp. Not alot of gains for nice chunk of change.
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Old Oct 6, 2007 | 03:02 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Header recommendations

Originally Posted by goalieforlife
twith the hookers ($439.95 usd at summit) the most increase i will get is 10hp. Not alot of gains for nice chunk of change.
Go with Hooker 2460s. They have 1 5/8" primaries and 3" collectors. They flow very well and cost about $150 US. You will get more than 10 HP with a full exhaust change.
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Old Nov 14, 2007 | 02:38 PM
  #15  
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From: Newfoundland, Canada
Car: 1991 Pontiac Trans Am GTA
Engine: V8 305
Transmission: Automatic Transmission
Re: Header recommendations

How good are these headers?

Hooker Competition headers (part#2460)
Mid length style headers with a 1 5/8"x3" collectors
$379.88+s&h
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Old Nov 14, 2007 | 03:36 PM
  #16  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
As I've said many, many times before, I don't consider them good at all. You'll have to spend money to have your stock y-pipe modified to fit them, and the stock y-pipe is terrible; or the alternative is the y-pipe that is available for them, which is overpriced and an underachiever. I don't understand why Hooker even offers them, and have even more trouble understanding why anyone would fall for their siren call "low price".

The 2055HKR's aren't perfect, but are a lot closer than anything else offered (possible exception: member Dyno Don's handmade offering).

10 HP gain is with no other changes (and probably conservative). The effect is multiplied if other changes are made. For instance, do the headers and cam swap for a 50 HP gain, but the same cam swap alone would only get you 20 HP because of the restrictive stock exhaust.

By the way, if you keep any of your stock LO3 exhaust, you'll still be underachieving.
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Old Nov 15, 2007 | 12:06 AM
  #17  
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From: Newfoundland, Canada
Car: 1991 Pontiac Trans Am GTA
Engine: V8 305
Transmission: Automatic Transmission
Re: Header recommendations

No, my car has pipes, not a stock exhaust.
Attached Thumbnails Header recommendations-fbird-rear.jpg  
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Old Nov 15, 2007 | 12:22 AM
  #18  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I'm talking about the parts attached to the engine (exhaust manifolds, they're typically called), the pipes coming off of the manifolds to the cat (commonly called the "y-pipe", because the two pipes "Y" into one and then into the cat), and the pipe that goes between the cat and muffler.

What's sticking out underneath the bumper doesn't impress me. The game's long over by then.
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Old Nov 19, 2007 | 03:05 AM
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From: Newfoundland, Canada
Car: 1991 Pontiac Trans Am GTA
Engine: V8 305
Transmission: Automatic Transmission
Re: Header recommendations

I know what u mean and the Y pipe is I assume... stock, I am not sure because the car is in storage right now. The 2055 are $795.00 including the y-pipe. I have a pretty stock 305 tbi bird and just wanted to know what the cam swap entailed in terms of price, work and what exactly must be done. You seem to have tons of experience so I will pick ur brain. lol.

Last edited by goalieforlife; Nov 19, 2007 at 03:29 AM.
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