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2.8L Top End Rebuild Pictures

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Old 09-07-2008, 11:21 AM
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Car: 1988 Firebird
Engine: 2.8 V6
Transmission: 5-Speed
2.8L Top End Rebuild Pictures

Here are some pics from my rebuild project:

www.1988firebird.shutterfly.com

Does anyone think rebuilding only the top end will cause problems for the bottom end? Stronger top end + weaker bottom end = problems?

A few problems/questions I've ran into:

1. Stock setup does not have exhaust manifold gaskets. I've researched here and it seems pretty evenly split on adding gaskets. I think I'll just put back on the way it way (no gaskets).

2. Two broken bolts on the exhaust manifold. No wonder I had that annoying popping sound when up-shifting. I always thought it was the deceleration valve.

3. I'll be using the higher performing Viton o-ring for the distributor.

Things replaced:

Distributor-Delphi brand. I believe this is new, not reman. $250.
Injectors-Also Delphi brand. New. $100 each.
All gaskets.
New push rods and rocker arms.

Heads should be back from the machine shop on Tuesday. I'll post more pics then.
Old 09-07-2008, 10:47 PM
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Car: 1989 RS
Engine: 3.1L + .060" overbore
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Axle/Gears: 4.11, Auburn LSD
Re: 2.8L Top End Rebuild Pictures

Are you not rebuilding the bottom end? I'm a believer that when you tighten the head gaskets on a high mileage motor you run the risk of blowing the rings. Just my experiences. Your heads look really similar to mine when I did it.

I ran gaskets on mine and then drilled out the heads for 3/8" exhaust studs instead of the puny stock bolts.
Old 09-07-2008, 11:23 PM
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Car: 89 Firebird
Engine: 2.8L out of a 89 camaro
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Re: 2.8L Top End Rebuild Pictures

he some one didn't drain the coolant before pulling the heads.. i can just imagine that engine letting go after u start it back up..
Old 09-08-2008, 12:09 AM
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Re: 2.8L Top End Rebuild Pictures

I think I'll have the lower end rebuilt just to be sure. Shouldn't be a problem with the coolant that way either.

Thanks for the advice.

-artie
Old 09-08-2008, 01:54 PM
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Re: 2.8L Top End Rebuild Pictures

You'll still need the coolant out of the oil. However, you can get it out of the cylinders by taking the plugs out and turning it over a couple times if you don't mind the mess.
Old 09-09-2008, 01:13 PM
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Re: 2.8L Top End Rebuild Pictures

Looks like the heads are cracked.

Reman long block from Kragen/Autozone: ~$1300

Junk yard, 25k, off a 89 bird: ~$1100
-will have distributor, injectors,...

I don't suppose I can get a new one anywhere...
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