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ID my power valve

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Old Aug 12, 2007 | 04:46 PM
  #1  
Aaron91RS's Avatar
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From: St. Louis
Car: RS
Engine: LS1
Transmission: T56
Axle/Gears: 9" for the ladies
ID my power valve

Got an 850DP used. Been awhile since I had to look at one. I thought the numbers on the PV were together but maybe not.

They are stamped and spaced around the PV.
L 6 5 6 or L 9 5 9

Problem is as you rotate it, the 6's could be 9's depending on which side you look at. As you rotate it, it's 9 below the L on the left and 6 above the 5 on the right side.
Do I assume it's a 6.5in vac PV

Last edited by Aaron91RS; Aug 12, 2007 at 04:50 PM.
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Old Aug 12, 2007 | 05:41 PM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
6.5 sounds right.
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