hooker headers 2055
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Car: 84 Firebird Trans Am
Engine: 305 4bbl HO
Transmission: 700-R4, 3.73 rear
hooker headers 2055
i have an 84 TA with L69 4bbl. well the hooker website says the part # 2055 is for the 86-90 305-350. so will they still work on my car, and i'm getting these bcuz i've heard about many disfigurements that u yourself have to do IE: dent one of the tubes. and i really haven't heard much about hooker but many people have them so i'll get these. so any info is welcomed and needed also what it cost for the headers and to jet hot coat them?
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Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
the denting only really has to be done on LONG TUBES I think. I just ordered the 2055s the other day. Check out my post if you'd like some more information on them... it's right below this one. I'll let you know how the install goes. https://www.thirdgen.org/techbb2/sho...hreadid=188723
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
They won't hook directly to the rest of your stock LG4 exhaust, that's why they limit the application like they do.
That's a good thing, though. While you're at it, throw away the rest of the LG4 exhaust. Don't keep any of it (with the possible exception of a hanger or two). Get a high flow direct-fit cat and cat-back for the same '86-'90 TPI single-cat application, and your engine will be much, much happier. If you buy any new exhaust parts made specifically for an LG4, you're in for a cyber-slapping.
The only real issue with installing 2055's on an LG4 is the A.I.R. fitting on the driver's side faces the rear (as it is for TPI), instead of towards the front as it is on the LG4. Just requires a slight rerouting, that's all (which I still have left to do before my next emissions test in November). They also do not have the EFE valve on the passenger side, but that's no big deal.
That's a good thing, though. While you're at it, throw away the rest of the LG4 exhaust. Don't keep any of it (with the possible exception of a hanger or two). Get a high flow direct-fit cat and cat-back for the same '86-'90 TPI single-cat application, and your engine will be much, much happier. If you buy any new exhaust parts made specifically for an LG4, you're in for a cyber-slapping.
The only real issue with installing 2055's on an LG4 is the A.I.R. fitting on the driver's side faces the rear (as it is for TPI), instead of towards the front as it is on the LG4. Just requires a slight rerouting, that's all (which I still have left to do before my next emissions test in November). They also do not have the EFE valve on the passenger side, but that's no big deal.
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Car: 84 Firebird Trans Am
Engine: 305 4bbl HO
Transmission: 700-R4, 3.73 rear
They won't hook directly to the rest of your stock LG4 exhaust, that's why they limit the application like they do.
am i right or wrong with the exhaust thing.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Oops, it must have been late.
The L69 is better than LG4, without a doubt. But, you're still better off getting the system I described. The L69 cat-back isn't so hot, either. Don't get a universal cat; what you'll spend getting it in there will be more than the difference for a direct-fit (assuming you get a new cat-back as well).
The L69 is better than LG4, without a doubt. But, you're still better off getting the system I described. The L69 cat-back isn't so hot, either. Don't get a universal cat; what you'll spend getting it in there will be more than the difference for a direct-fit (assuming you get a new cat-back as well).
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Car: 84 Firebird Trans Am
Engine: 305 4bbl HO
Transmission: 700-R4, 3.73 rear
five7kid, i think the cat back i'm looking at is for a slip on cat and i think the y pipe from hooker is too, so should i get a direct fit high flow cat for an 86-90 TA.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
'86-'90.
They're all the same.
The slip-fit part is the inlet - the y-pipe is made for that. The bolt-on part is the outlet - the same-application cat-back is made for that. Which makes the whole cat a direct fit for any '86-'90 TPI single-cat.
They're all the same.
The slip-fit part is the inlet - the y-pipe is made for that. The bolt-on part is the outlet - the same-application cat-back is made for that. Which makes the whole cat a direct fit for any '86-'90 TPI single-cat.
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They just slide in. The hookers come with everything you need including spacers for the brackets. The only difference is the way the air tubes face, but that isn't a problem if you arent gonna run a smog pump.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Gunny, I thought you'd been around long enough to know that.
The headers fit the engine, they just don't fit the LO3 exhaust - a very good thing, it turns out. The AC bracket needs one leg cut off.
The headers fit the engine, they just don't fit the LO3 exhaust - a very good thing, it turns out. The AC bracket needs one leg cut off.
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Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by five7kid
Gunny, I thought you'd been around long enough to know that.
The headers fit the engine, they just don't fit the LO3 exhaust - a very good thing, it turns out. The AC bracket needs one leg cut off.
Gunny, I thought you'd been around long enough to know that.
The headers fit the engine, they just don't fit the LO3 exhaust - a very good thing, it turns out. The AC bracket needs one leg cut off.
. . . and yes, I will be keeping my smog crap.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally posted by Gunny Highway
...it's like us TBI guys are getting short changed with a smaller y-pipe and what not.
...it's like us TBI guys are getting short changed with a smaller y-pipe and what not.
Just upgrade the whole TBI system with TPI headers and the rest of the exhaust for the TPI-application.
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Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by five7kid
It was the factory that did that to you, not the header manufacturers.
Just upgrade the whole TBI system with TPI headers and the rest of the exhaust for the TPI-application.
It was the factory that did that to you, not the header manufacturers.
Just upgrade the whole TBI system with TPI headers and the rest of the exhaust for the TPI-application.
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Car: 84 Firebird Trans Am
Engine: 305 4bbl HO
Transmission: 700-R4, 3.73 rear
The slip-fit part is the inlet - the y-pipe is made for that. The bolt-on part is the outlet - the same-application cat-back is made for that. Which makes the whole cat a direct fit for any '86-'90 TPI single-cat.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I wouldn't say it's the same size. Yours is 2-3/4" w/4-bolt flange. The TPI version is 3" slip-fit inlet with a 2-bolt outlet flange. The factory TPI outlet is 2-3/4", aftermarket outlets are 3".
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Car: 84 Firebird Trans Am
Engine: 305 4bbl HO
Transmission: 700-R4, 3.73 rear
ok five7kid, recap. i should order my cat-back for an 86-90 f-body and a caco high flow cat for the same years? right? also if anyone has a pic of what a 86-90 cat looks like that would help
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