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6-3/4" damper

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Old Oct 27, 2006 | 08:20 PM
  #1  
Wadebryant's Avatar
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From: KY
Car: 87IROC, 740iBMW, 328iBMW, 86GMC
Engine: 5.7, 4.4LV8, 2.8, 6.0
Transmission: Manuals & Auto's
Axle/Gears: 3.27, 3.42
6-3/4" damper

Would like to read some opinions on useing 6-3/4" dampers on 383 street motor stroker builds. Comments?

Thanks

W
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Old Oct 27, 2006 | 09:07 PM
  #2  
Damon's Avatar
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From: Philly, PA
The engine would have to be internally balanced to do that. Externally balanced 383s (which are more common) use an blanacer with a counterweight in it- and they only come in 8" diameter.

Even with internal balance I'm not sure a little 6-3/4" balancer would control torsional vibrations well enough with the longer stroke crank, but that's just my opinion.
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Old Oct 28, 2006 | 08:47 AM
  #3  
Mkos1980's Avatar
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
I run the Proffessional Products 6 3/4 balancer with my 383. I had it balanced with the motor and its super smooth to 6500-6800 dyno runs.
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Old Oct 28, 2006 | 06:01 PM
  #4  
Wadebryant's Avatar
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Joined: Jul 2003
Posts: 1,236
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From: KY
Car: 87IROC, 740iBMW, 328iBMW, 86GMC
Engine: 5.7, 4.4LV8, 2.8, 6.0
Transmission: Manuals & Auto's
Axle/Gears: 3.27, 3.42
Originally Posted by Mkos1980
I run the Proffessional Products 6 3/4 balancer with my 383. I had it balanced with the motor and its super smooth to 6500-6800 dyno runs.
I'm putting my parts list togeather for a new engine build and the same product caught my attention, and that's why I put the question out there...

Thanks
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