What harmonic balancer to choose?
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Joined: Feb 2011
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From: Finland
Car: Pontiac Trans Am GTA -87
Engine: 5.7 TPI
What harmonic balancer to choose?
Can someone tell me which harmonic balancer i should choose? I think im getting vibrations from the damper so im going to replace it, what damper is oem for a -87 5,7l TPI? Or should i go for a "performance" model? My engine is very near stock, only headers and deleted AIR. I think the oem is 6,75 in. but im not sure...
,Thanks
,Thanks
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Joined: Dec 2005
Posts: 276
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From: Beautiful Coastal New Jersey
Car: 1990 Firebird
Engine: 350 TBI
Transmission: T5
Axle/Gears: Auburn posi 3.73
Re: What harmonic balancer to choose?
The damper is a pretty simple part. First check that the outer ring is not moving or otherwise coming off of the damper. Second, check that you don't see any obvious cracks or deterioration in the rubber bonding between the inner and outer parts. If neither of those things seem to be an issue then the damper should be fine. If you do decide to get a new damper I'd recommend just getting a stock style one.
Joined: Apr 2005
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
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