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92 Z28/Rs

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Old Aug 1, 2015 | 05:55 PM
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92 Z28/Rs

Does anyone know if the front fenders bumper and interior for a 92 Camaro Rs will bolt onto a 92 Z28? My Rs has the 3.1l but I want something with a little bit more power. The Z28 I'm looking at has a decent running 305 but no interior or body parts from the doors forward..

Would it be better to just build up the 305 and swap it into the Rs or leave it in the Z28 and take the interior/ body from the Rs?
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Old Aug 1, 2015 | 06:21 PM
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From: Connecticut
Car: 1991 Camaro RS
Engine: 305 TBI
Transmission: WC T5
Axle/Gears: Torsen 3.73
Re: 92 Z28/Rs

I woud swap the body panels depending on which chassis has less rust. The front bumper is the same, but the grille is different between the two. The fenders are also the same, and the hoods were different, but are interchangeable. I would build the Z28 if I were you
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Old Aug 1, 2015 | 06:35 PM
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From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: 92 Z28/Rs

Everything will bolt up. If it were me, I would choose the Z28. It's a more valuable car and it will be easier to switch interior and body panels versus engine and harness swap. The Z28 will also have a posi out back.
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Old Aug 1, 2015 | 06:38 PM
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Re: 92 Z28/Rs

Is the fuel pump different for the two? The Z28s is bad but I drive the Rs every day... will I need to drop the rear end to put a new one in?
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Old Aug 1, 2015 | 08:28 PM
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From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: 92 Z28/Rs

Yes the pumps are different, tpi requires a lot more pressure. You can remove the shocks and one end of the pan hard bar and let the rear end hang down. That wil allow enough room to remove the tank. Not a bad job to do.
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Old Aug 2, 2015 | 12:35 PM
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Re: 92 Z28/Rs

Is it posible to just get a fuel pressure regulator and use the pump form the Rs?
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Old Aug 2, 2015 | 03:52 PM
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From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: 92 Z28/Rs

My bad man, I saw RS and automatically thought tbi, but you actually have mpfi. According to some of the other members, the mpfi pump will support tpi. From a work aspect you're not gaining anything because the same work is required to remove and replace the tpi pump or to swap in your RS tank. While it's not a very difficult job, it would be hard for me to remove a tank and not replace the pump. It's a cheap item, less than $100.

Last edited by Ty92Z; Aug 2, 2015 at 04:04 PM.
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Old Aug 2, 2015 | 07:12 PM
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Re: 92 Z28/Rs

Will body parts form any other year fit? I wanted to just use the ones off the RS but it's my daily driver so I'd like to keep it.. there are a few salvage yards around with tones of tied gen parts I just don't know what will work and what won't

Amd what about a manual swap?... my Rs is a 5 speed and I'd like to have the Z28 the same or a 6 speed. What's the best tranny to go with and what would it cost?
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Old Aug 2, 2015 | 08:03 PM
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From: Pgh PA
Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: 92 Z28/Rs

Remember to disconnect the brake lines from the rear diff before you try to drop the rear to access the fuel tank. A new pump will only cost a hundred bucks, but get a good one as it is alot of work to get to it! And the 92 will accept all years but to be correct i think 91 and 92's have the right ground effects.
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Old Aug 2, 2015 | 08:44 PM
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Re: 92 Z28/Rs

Just my opinion, but I wouldn't get caught up in rs vs z28 and value. Stick with the car that's in the best shape.

I also wouldn't wast my time with swapping in a 305. I've had a 305 3rd gen. I swapped it for a 350. There's no comparison stock for stock. If you're putting in the work go for 350.
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Old Aug 2, 2015 | 09:04 PM
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Re: 92 Z28/Rs

I'm getting the Z28 for 400 bucks and don't want to spend the money to swap to a 350 when it has a good 305... the car needs EXTINSIVE body work but is very solid and runs strong (until the fuel pump went out) I don't have a ton of money but plan on doing a full restoration over the next year or two.

And I have a donor car for the body parts that will need replaced

Last edited by Mdailey; Aug 2, 2015 at 09:12 PM.
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Old Aug 2, 2015 | 09:24 PM
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Re: 92 Z28/Rs

Better pull the carpet and look under the car before you declare it's solid. Not hating, but definitely check it out. I've been in this situation and screwed up pretty good.
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Old Aug 2, 2015 | 09:44 PM
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Re: 92 Z28/Rs

Belive me I know. When I bought the RS I didn't check the floors.... driver side floor board was almost gone
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Old Aug 2, 2015 | 10:50 PM
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From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: 92 Z28/Rs

Tons of info on both 5 speed T5 and 6 speed T56 swaps. Cost can be kept to a minimum if you have a good place to source parts. Around here a t5 can be found for $200 - $500, an LT1 t56 for $300 - $1000. This site has shown me that price depends largely on location.
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Old Aug 5, 2015 | 08:37 PM
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Re: 92 Z28/Rs

Will a T5 from a mustang work with the 305?
I found one for 400
The casting number is t5-52-065-908

Last edited by Mdailey; Aug 5, 2015 at 08:44 PM.
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Old Aug 6, 2015 | 08:10 AM
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From: Southeast VA
Car: 91 Camaro RS T-Top
Engine: 5.0 Tbi
Transmission: 700r4
Axle/Gears: 3.42
Re: 92 Z28/Rs

You be better off to find the correct trans the first time, the mustang bell housing is not gonna bolt to a chevy motor so you'd still have to buy that, as well as I'm sure the gear ratios in the trans are different, that's gonna throw off speedo and who knows how it's gonna match up to your rear gear ratio wise, and the output shaft will prolly be different I'd imagine.
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Old Aug 7, 2015 | 05:36 PM
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Re: 92 Z28/Rs

T-5's (chevy) are everywhere in the junkyards if it's the same as the trucks use.
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Old Aug 7, 2015 | 08:10 PM
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From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: 92 Z28/Rs

Mustang t5s are different and won't bolt up. Several guys on here run the t5 out of v6 f bodies. You'll need a v8 bellhousing, flywheel and pressure plate and run a 10.5" clutch disc from an 80s s10 (14 spline). Beware though if you're going to drive it hard. There are v8 t5s out there, just a little harder to find.
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Old Aug 7, 2015 | 09:57 PM
  #19  
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Car: 92 RS
Engine: LT1
Transmission: 700r4
Axle/Gears: 3.73
Re: 92 Z28/Rs

If you plan on putting something in it with decent HP, when you do the resto. Hold out and find a t56.
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Old Aug 8, 2015 | 03:50 PM
  #20  
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Re: 92 Z28/Rs

Whats the rear gears stock And what's the best exaust to go with
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Old Aug 8, 2015 | 04:19 PM
  #21  
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From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: 92 Z28/Rs

Take a look in the tech data section of this site. It will tell you a lot of facts about your car as far as what it should have come from the factory with. Of course it won't hurt to crawl under and take a look at the tag on the rear end, you never know if it's been changed. The "best" exhaust is going to depend on who answers the question. There are so many variables to consider, money often being the biggest. I have a Magnaflow and I love it, probably considered middle of the road. Go to YouTube and listen to sound clips of different exhausts and find something you like. It's your car, so do what you want.
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Old Aug 11, 2015 | 11:15 AM
  #22  
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Re: 92 Z28/Rs

Are the rear breaks the same size? I have a brand new set I bought for the RS and ended up not needin them so will they fit on the z28?
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Old Aug 15, 2015 | 09:16 AM
  #23  
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Re: 92 Z28/Rs

Will I need to change motor mounts or the bell housing to swap to a 350?
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Old Aug 15, 2015 | 11:07 AM
  #24  
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From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: 92 Z28/Rs

No. Externally a 305 and 350 are the same.
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Old Aug 15, 2015 | 11:08 PM
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Re: 92 Z28/Rs

What about the wireing harness?
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Old Aug 21, 2015 | 04:05 PM
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Re: 92 Z28/Rs

How hard would it be to swap a 454 bbc into it
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