Am I crazy?? Do you see what I see?
Joined: Sep 1999
Posts: 4,353
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Am I crazy?? Do you see what I see?
Ugly SBC with terrible red paint on it? Adjustable timing tab? Aftermarket intake manifold? 12 point screws in the intake?
Joined: Sep 1999
Posts: 4,353
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Am I crazy?? Do you see what I see?
I don't know older stuff like that well, but did you look at the casting numbers? The heads aren't necessarily the same on the ends
Re: Am I crazy?? Do you see what I see?
I haven't removed the heads yet, but the serial # is M09121VP...the last 1 can be an I too IVP. IVP code means it's a Goodwrench engine. It comes back as a 1981 TargetMaster. My wife loves to decipher cowl tags and VIN info. Made in Mexico. It's frustrating since this car is an early build...on my birthday too. It all matches, except the engine. Still running original transmission.
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Joined: Sep 1999
Posts: 4,353
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Am I crazy?? Do you see what I see?
Just need to pull the valve covers to look at the casting numbers on the neads
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: Am I crazy?? Do you see what I see?
My Dad bought an old coupe with a "crate engine" that was smoking and getting a bit tired. Ran decent actually but when tore down the dang thing had a 58cc head on one side and a 76cc head on the other. PO swore up and down it came from Autozone as a crate engine.
Re: Am I crazy?? Do you see what I see?
Mine has the worst case of blow by ever. If the pistons aren't fitting the cylinder properly, that would explain that. Not everything going into combustion chamber is burned. You can stick your finger in tailpipe and get fresh oil on fingers. I'm expecting broken piston rings, and cylinder walls scratched. It has a bad exhaust leak. The car shakes VIOLENTLY down passenger side when running. I would rather have center bolt valve covers. The offset always leak between middle screws. The leak sounds like a lifter knocking. Mismatched heads will work, but the ports have to match.
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Joined: Jan 2008
Posts: 1,331
Likes: 565
Car: 1986 IROC Z
Engine: 5.0 TPI
Transmission: 700R4
Axle/Gears: 3.23 Posi
Re: Am I crazy?? Do you see what I see?
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