3,1 FireBird engine instead of 2,8 Camaro engine
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Joined: Jun 2007
Posts: 71
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From: Munich/Germany
Car: 89`RS
Engine: LS1
Transmission: 4L60E
Axle/Gears: 2,72
3,1 FireBird engine instead of 2,8 Camaro engine
Hey guys,
can somebody tell me if I can swap the newer 3,1L engine of a 91 firebird in an 89 camaro that had a 2,8l engine in it?
Backround is, i got a 88 camaro that has a broken engine for less, and I have a wrecked 91 firebird sitting in the backyard with a good engine.
Is it possible to just change the engines and ecm and it will run???
Thanks for your help, Rob
can somebody tell me if I can swap the newer 3,1L engine of a 91 firebird in an 89 camaro that had a 2,8l engine in it?
Backround is, i got a 88 camaro that has a broken engine for less, and I have a wrecked 91 firebird sitting in the backyard with a good engine.
Is it possible to just change the engines and ecm and it will run???
Thanks for your help, Rob
Joined: Feb 2007
Posts: 113
Likes: 0
From: Maryland
Car: Firebird - Camaro
Engine: 2.8L - 6.3L
Transmission: 700r4
Axle/Gears: 3.42 - 3.23
Re: 3,1 FireBird engine instead of 2,8 Camaro engine
Should be an easy swap. There will be some differences in emissions stuff, but I think thats it.
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From: Oklahoma City
Car: 1991 Firebird
Engine: 3.1L +bolt ons
Transmission: 700R4
Axle/Gears: Moser forged, 3.73, SLP posi
Re: 3,1 FireBird engine instead of 2,8 Camaro engine
Should be the easiest swap possible (minus another 2.8).
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Posts: 2,470
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From: Waterford, MI
Car: 1998 Camaro Z28
Engine: 6.0L
Transmission: 4L60E
Axle/Gears: 3.73
Re: 3,1 FireBird engine instead of 2,8 Camaro engine
Just take all the externals off the 2.8, put em on the 3.1, drop it in, and your off n running. Literally is that easy.
Member

Joined: Apr 2009
Posts: 266
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From: Springboro OH
Car: Many
Engine: Several
Transmission: Automatics
Re: 3,1 FireBird engine instead of 2,8 Camaro engine
everytime i pull a motor and swap it, at the very least i put an oil pump in it. cheap insurance.
Thread Starter
Junior Member

Joined: Jun 2007
Posts: 71
Likes: 0
From: Munich/Germany
Car: 89`RS
Engine: LS1
Transmission: 4L60E
Axle/Gears: 2,72
Re: 3,1 FireBird engine instead of 2,8 Camaro engine
sloick, can you explain that to me? don´t know what you mean.
change the old one?
change the old one?
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Junior Member
Joined: Sep 2007
Posts: 19
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From: Texas
Car: 84 Firebird / 91 Camaro
Engine: 2.8 / 3.1
Re: 3,1 FireBird engine instead of 2,8 Camaro engine
Recommended to replace oil pumps if your going to disassemble a block. I did a 2.8 to a 3.1 swap replaced all seals, oil pumps, and sensors on the block it self like the oil pressure sensor, checked and replaced the timing chain.
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