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85-90 Z-28 and 91-92 Z-28 Front Bumper Differences?

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Old Nov 12, 2002 | 02:09 PM
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85-90 Z-28 and 91-92 Z-28 Front Bumper Differences?

I'm usually pretty good at noticing the subtle differences between the different generation Camaro's, but I just CAN'T see the difference between an 85-90 and 91-92 front bumper cover on a Camaro. What are the actual physical differences?

The reason I'm asking is that I plan on converting my 87 IROC to the apperance of an 91-92 Z-28.
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Old Nov 12, 2002 | 03:27 PM
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From: Lan Terminal
Well I'd tell you its the mounting holes for 87-90 and 91-92 but someone will come along and tell me I'm stupid, so I have no offical input.
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Old Nov 12, 2002 | 04:44 PM
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The earlier fascia's had a small sloping part on the nose. The 91-92 nose is a lot larger, which is why the 91-92 camaro's have a lower appearance, because the spoiler actually hangs lower off the bigger fascia.

Mathius
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Old Nov 12, 2002 | 09:53 PM
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Anybody have any side by side comparison pics? The only thing I notice is that the later style ground effects are"pointer", but that's just the ground effects, they don't seem lower and the nose doesn't seem lower. I see no actual difference in the nose.
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Old Nov 12, 2002 | 11:16 PM
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From: Marietta, GA
Car: '84 Z28
Engine: L69
Transmission: 700R4
Axle/Gears: 3.73
Originally posted by MikeDwhoROCZImports
I see no actual difference in the nose.
Good eyes Mike. There is no difference. The GM parts catalog lists the same part number (16503496) for the '85-'87 Z28/IROC & '88-'92 all Camaro.
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Old Nov 13, 2002 | 10:10 PM
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Sweet deal I can save myself about two grand then.
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Old Nov 14, 2002 | 05:15 AM
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Originally posted by David M
Good eyes Mike. There is no difference. The GM parts catalog lists the same part number (16503496) for the '85-'87 Z28/IROC & '88-'92 all Camaro.
Sorry, but you're wrong. Part #16503496 IS listed for all years. In fact there's two listings, 82-90 and 91-92 under that part number.

However, part #16503478 is also listed, which is exclusively for 82-87 front ends.

You'd have to check with someone on the history boards to sort this out, but there's definately a difference, look it up.

Mathius
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Old Nov 14, 2002 | 05:18 AM
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Here's the earlier style front clip. It has a slightly shorter slant, because the lower half of it has vents on it, and the front spoiler is definately shorter, although that's a separate part from the fascia, the title definately is "front bumper", so I have to assume he's talking about the whole front end, since our cars don't have a traditional bumper.



Mathius
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Old Nov 14, 2002 | 02:00 PM
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From: was: Palmdale, Ca
Car: was: 1984 Camaro Z28
Engine: was: L69
Transmission: was: 700-R4
Mathius, your a fool. Get your facts straight prior to posting.

From 1982-1984 there were two front ends (bumpers) and one spoiler (for the Z28)
Z28 (see mine )
Berlinetta and Sport Coupe (no spoiler)

From 1985-1990 there were two front, ends two grilles and one spoiler
Berlinetta and Sport Coupe (no spoiler)
Z28, RS (full grille) and IROC (grille for fog lights)

From 1991-1992 there was one front end one spoiler and two grilles (front end carried over from 1985-1990, but had different holes for the updated ground effects of 1991-1992)
RS (full grille) and Z28 (grille for fog lights)

If you guys want, I can add pictures to my examples ...

Last edited by MRZ28HO; Nov 14, 2002 at 02:10 PM.
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Old Nov 15, 2002 | 03:36 PM
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From: Brooklyn, NY, USA
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I did do complete side by side comparisons a while ago, but some of my pics are not coming through, only the tail lights. But, that was before we could post pics directly. I will post the three comparisons (front, side and rear) again by just attaching them as images, but won't get around to it until Sunday.
For now,
click here
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Old Nov 15, 2002 | 06:33 PM
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From: Northern Ohio
Originally posted by MRZ28HO
Mathius, your a fool. Get your facts straight prior to posting.
I'm sure you meant to say "Mathius, you're a fool." Anyways, my first question would be what part of what I said was false information, and my second question would be what did I say that warranted such a troll-ish and adolecent response?

I flat out stated I wasn't sure on the production changes (my reference to the history boards), but I was pointing out that there was definately a second option for the fascia's. What part of that is an incorrect fact? I'm not a walking car dictionary, I'm actually rather new to it, but it doesn't take a rocket scientist to look up part numbers from a manual.

Mathius
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Old Nov 15, 2002 | 09:24 PM
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From: Where the heck am I !..Oh yeah,in Lousy-ana.
Car: 1991 Z28
Engine: 350 TPI
Transmission: 4L60 automatic
I had just replaced the front bumper cover with one from an '85 and it fit just as perfect as the original.The only difference was that I had to drill 2 holes for the emblem since this one didn't have any.The lower efx and grills are the only differences between the 85-90 and 91-92 IROCS/Z28s.

Last edited by 91Zman; Nov 15, 2002 at 09:29 PM.
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Old Nov 15, 2002 | 10:22 PM
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
I have a collision guide (gm part numbers) on my website (link in sig) if you'd like to cross reference year/part numbers the interchange.
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Old Nov 16, 2002 | 12:15 AM
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Some of you guys replied in the sense that I was asking the difference between ALL model years. The earlier models with the deeper turn signals, boxier noses and having or lacking the vents is pretty obvious. As I was saying, the 85-90 and 91-92 LOOK identical....the only reason I even questioned a diference in the first place is that if you look for Head Light Covers for Camaro's there's a different part number for 85-90 IROC's and 91-92 Z-28's...
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Old Nov 16, 2002 | 12:28 AM
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From: Chesterfield, Indiana
Car: 1991 Z28 Camaro
Engine: 5.7
Transmission: Jasper 700R4 Stage II
Axle/Gears: 3.23 For Now
Originally posted by MikeDwhoROCZImports
Some of you guys replied in the sense that I was asking the difference between ALL model years. The earlier models with the deeper turn signals, boxier noses and having or lacking the vents is pretty obvious. As I was saying, the 85-90 and 91-92 LOOK identical....the only reason I even questioned a diference in the first place is that if you look for Head Light Covers for Camaro's there's a different part number for 85-90 IROC's and 91-92 Z-28's...

I think they are EXACTLY the same.....sure the ground effects are different...but the actual nose.....are the same...99.9% sure
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Old Nov 16, 2002 | 01:01 AM
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From: Where the heck am I !..Oh yeah,in Lousy-ana.
Car: 1991 Z28
Engine: 350 TPI
Transmission: 4L60 automatic
In all the parts catalogs that I have they list the 85-90 and 91-92IROC/Z28 as the same nose,it is pretty obvious by looking at them.The only revisions are the grills,provisions for the nose emblem, and ground efx.

Last edited by 91Zman; Nov 16, 2002 at 01:03 AM.
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Old Nov 16, 2002 | 08:19 AM
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From: FL
Car: 1987 Camaro SC
Engine: 305
Transmission: 700R4
Originally posted by MRZ28HO
Mathius, your a fool. Get your facts straight prior to posting.

From 1982-1984 there were two front ends (bumpers) and one spoiler (for the Z28)
Z28 (see mine )
Berlinetta and Sport Coupe (no spoiler)

From 1985-1990 there were two front, ends two grilles and one spoiler
Berlinetta and Sport Coupe (no spoiler)
Z28, RS (full grille) and IROC (grille for fog lights)

From 1991-1992 there was one front end one spoiler and two grilles (front end carried over from 1985-1990, but had different holes for the updated ground effects of 1991-1992)
RS (full grille) and Z28 (grille for fog lights)

If you guys want, I can add pictures to my examples ...

Hes right

But heres the Bumper Brake Down agen

82-84 Z28
82-84 Berlinetta and Sport Coupe
85-86 Berlinetta, Sport Coupe and LT
85-92 IrocZ, Z28, RS, and 88Sport Coupe

(85-90 had a Diffrent Lower Spoilers But the the Uper part is the same as 91-92)

So thats the Bumper Brake Down
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Old Aug 26, 2006 | 08:44 PM
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Originally Posted by MRZ28HO

From 1991-1992 there was one front end one spoiler and two grilles (front end carried over from 1985-1990, but had different holes for the updated ground effects of 1991-1992)
RS (full grille) and Z28 (grille for fog lights)
I see you stated the only difference between 85-90 and 91-92 is the holes for the lower spoiler. If 85-92 fronts all used the same part number, 16503496, how can I identify what year my bumper is correct for? It's in a box with the GM part number mentioned above.
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Old Aug 27, 2006 | 06:28 AM
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From: FL
Car: 1987 Camaro SC
Engine: 305
Transmission: 700R4
wow this is old.....
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