Looking for headers
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Junior Member
Joined: May 2015
Posts: 42
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From: Minnesota
Car: 1987 Firebird Formula
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: .373
Looking for headers
First let me say this; I HAVE READ THE STICKIES!
I know that there are stickies about the headers, I have read them. I'm told by pretty much everyone that for a third gen, shorties are better unless you are trying to run a sub-12 second car at the drag strip (which I'm not). What are some of your guys opinions on what works well for a cruising/first project car. I'm guessing I will want a new y-pipe with these since it still has the stock one. Also, it has a full catback (which looks pretty nice) with a cat-delete, am I better off just leaving the cat-delete, or should I just go get a high flow one so I'm less of a dick to the environment (I'm sure my engine with 183k miles isn't the cleanest burning, even of 3rd gens)? How much would a high flow cat realistically affect power output? (other than a short ram intake, rest of the engine is stock afaik). Is it worth it to pay for coated headers?
I know that there are stickies about the headers, I have read them. I'm told by pretty much everyone that for a third gen, shorties are better unless you are trying to run a sub-12 second car at the drag strip (which I'm not). What are some of your guys opinions on what works well for a cruising/first project car. I'm guessing I will want a new y-pipe with these since it still has the stock one. Also, it has a full catback (which looks pretty nice) with a cat-delete, am I better off just leaving the cat-delete, or should I just go get a high flow one so I'm less of a dick to the environment (I'm sure my engine with 183k miles isn't the cleanest burning, even of 3rd gens)? How much would a high flow cat realistically affect power output? (other than a short ram intake, rest of the engine is stock afaik). Is it worth it to pay for coated headers?
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Joined: Mar 2014
Posts: 200
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From: South TX
Car: 92 RS
Engine: Sbc With h/c/i/e holly4150
Transmission: 700r
Re: Looking for headers
just a heads up I got flotech headers and ypipe and they did not fit. The headers fit fine but I had to cut up the y pipe and re weld
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Joined: Oct 2004
Posts: 4,527
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Looking for headers
Don't get flotek they are the worst headers out there.
Get coated if you are going to drive in anything salty or if you want them to stay looking nice.
Whats you budget?
Get coated if you are going to drive in anything salty or if you want them to stay looking nice.
Whats you budget?
Joined: Jul 1999
Posts: 10,950
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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: Looking for headers
As the stickies said, Hooker 2055's, or Dyno Don's shorties.
Cats are preferred to help keep the environment clean and keep your car legal. Dyno tests have shown anywhere from 1 to 5 HP loss, nothing you'll feel.
Cats are preferred to help keep the environment clean and keep your car legal. Dyno tests have shown anywhere from 1 to 5 HP loss, nothing you'll feel.
Joined: Mar 2014
Posts: 4,553
Likes: 806
From: South Ms
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Joined: May 2014
Posts: 550
Likes: 6
From: Pittsburgh
Car: 91 G92 Z28
Engine: 305 TPI
Transmission: T5
Axle/Gears: 342
Re: Looking for headers
cat-less cars stink too...stink like gas. And so will your clothes and interior if you drive with the windows down. I vote cats.
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iTrader: (1)
Joined: Mar 2014
Posts: 200
Likes: 1
From: South TX
Car: 92 RS
Engine: Sbc With h/c/i/e holly4150
Transmission: 700r
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Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Re: Looking for headers
I have a set of 2055's for sale in the classifieds if you're interested.
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iTrader: (9)
Joined: Sep 2001
Posts: 2,984
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From: North Central Indiana
Car: 86 IROC
Engine: 383
Transmission: TKO 600
Axle/Gears: 3.54 Dana 44 IRS
Re: Looking for headers
Get the ceramic coated Dyno Don shorties and Y pipe, period. I run cats on all my stuff, I have 2 in a custom dual cat Y pipe on my GTA. Cats don't die, they are murdered by a poor running engine, anyone that tells you otherwise doesn't know what they are talking about.
Re: Looking for headers
Uh... The stock catalysts have a really nasty habit of breaking up. I had one that started rattling after bottoming out in a dip in the road. Another the Y-pipe sat in storage for a year or two, when I pulled it out to sell it the catalyst was loose in the shell and rattling. So while it's fairly uncommon to have a cat problem, it can and does happen. That said I'd probably still run a cat, I just wouldn't feel bad about replacing one that's 30 years old.
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iTrader: (9)
Joined: Sep 2001
Posts: 2,984
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From: North Central Indiana
Car: 86 IROC
Engine: 383
Transmission: TKO 600
Axle/Gears: 3.54 Dana 44 IRS
Re: Looking for headers
Drew you are correct. My statements were made in reference to someone who thinks cats plug up from normal use. I did not account for storage, extreme age or external damage. Also, the old pellet type cats from the 70s and early 80s are exempt from my comments as well.
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Joined: Jul 2007
Posts: 1,293
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From: Howard Lake, MN
Car: 86 Camaro
Engine: 355- hopefully a 5.3 this summer
Transmission: 700r4
Axle/Gears: 3.42
Joined: Mar 2014
Posts: 4,553
Likes: 806
From: South Ms
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: Looking for headers
Funny ive removed them on probably ten vehicles ive owned and I never noticed a stink..Did all those pre-smog cars stink as well? Im not totally against them if you have to have them there are nicer aftermarket ones these days but if you don't have to have them then why have the parasite.
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Joined: Apr 2010
Posts: 1,198
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From: Armstrong B.C.
Car: 1991 camaro Z28
Engine: Forged 370" LS turbo s488
Transmission: Built 4L80e FTI converter
Axle/Gears: MWC 9" 35 spline 3.25 gears
Re: Looking for headers
Doug's headers fit perfectly they slip in easily from the bottom and I didn't have to remove anything. You'll just need to fab up a y pipe
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redformula88
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Oct 14, 2015 06:08 PM






wish I would have spent ore money on better ones 