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Old Jun 6, 2002 | 06:48 PM
  #1  
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Piston Rings

 
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Old Oct 9, 2002 | 05:35 PM
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kc8fhs
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Piston Rings

HELP! I can not find rings for my 390.

I need 5/64" 5/64" 3/16" @ 4.050 bore.

Does anyone know where I can get these????

Tim



 
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Old Oct 9, 2002 | 07:27 PM
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Piston Rings

What's the problem? Is it the .050 overbore?
 
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Old Oct 9, 2002 | 08:57 PM
  #4  
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kc8fhs
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Piston Rings

No, I can only find 3/32" 5/64" 3/16" @4.050 rings.

But I need this size

Top ring - 5/64"
Middle ring - 5/64"
Bottom ring - 3/16"
390 - 4.050 bore

I talked with Total Seal (They make Rings) and they can sell me 4.060 and I would have to shave the ends of the rings to fit, Lots of work. I would like to find a set already to put in.

1967 Merc 390 4bbl in my 1969 F250.

Tim

 
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Old Oct 10, 2002 | 08:25 AM
  #5  
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Piston Rings

You should file-fit any rings you install. Ring end-gap is an important factor for compression and oil control.
 
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