Is the 87 2.8 internally or externally balanced?
Thread Starter
Junior Member
Joined: Jun 2004
Posts: 95
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From: Delaware
Car: '86 Camaro, '85 Z28, '92 Firebird
Engine: LB8 2.8, LG4 5.0, LO3 5.0
Transmission: TH-700R4, T-5, TH-700R4
Axle/Gears: 3.42s, 3.23s, 2.73s
Is the 87 2.8 internally or externally balanced?
I tried to look it up but it seems to the one year people aren't sure of, I read some saying '88 was the first year for internally balanced cranks, but others say that with the transverse mounted 2.8 coming out in '87, and it was internal, that RWD 2.8s were internally balanced too. I have an engine out of a '87 and I need to know, I have a driveplate from an '88 to use but if it is externally balanced, how would I get it balanced? I couldn't just take the driveplate off of my '86 and use it right? cause I though every engine was balanced to its own needs
Thread Starter
Junior Member
Joined: Jun 2004
Posts: 95
Likes: 0
From: Delaware
Car: '86 Camaro, '85 Z28, '92 Firebird
Engine: LB8 2.8, LG4 5.0, LO3 5.0
Transmission: TH-700R4, T-5, TH-700R4
Axle/Gears: 3.42s, 3.23s, 2.73s
uh, yea, like I said already, I tried to look, but I didn't find any straight answers. And this is something I would like to be pretty damn sure of cause I would be pretty pissed to get this thing installed just to find out I just ruined all the main bearings when I fired it up. But thanks.
Member
Joined: Feb 2006
Posts: 195
Likes: 0
From: amherstburg (windsor) Ontario Canada
Car: 88 camaro
Engine: 3.4
Transmission: t-5
Axle/Gears: limited slip posi 3.42
the flywheels up to 88 i am pretty sure were extrenely balenced the 88's to 92 where internally but to like a 10 of an gram and the 92's and up where like .5 but i'm sure it would be on a forum somewhere
Thread Starter
Junior Member
Joined: Jun 2004
Posts: 95
Likes: 0
From: Delaware
Car: '86 Camaro, '85 Z28, '92 Firebird
Engine: LB8 2.8, LG4 5.0, LO3 5.0
Transmission: TH-700R4, T-5, TH-700R4
Axle/Gears: 3.42s, 3.23s, 2.73s
lol, see, I think i find answer and then I learn differently. Well, I've never had to get an engine balanced, so anyone know how I would go about doing it?
Member
Joined: Feb 2006
Posts: 195
Likes: 0
From: amherstburg (windsor) Ontario Canada
Car: 88 camaro
Engine: 3.4
Transmission: t-5
Axle/Gears: limited slip posi 3.42
i read in a post that this one guy took his to a place that made fans and they did it for like 20 bucks unless u know someone who balnces anything like that check out but i just read ur first post again and just realized ur fine using a 88 flywheel it would actually be better since it is balenced better
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monte87cortez
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Sep 26, 2015 08:10 PM
1982, 1986, 28, 87, balanced, camaro, chevy, engine, externally, firebird, firebirdengine, internall, internally, v6, years





