4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

PI vs Non PI bottom end

Old 04-28-2006, 12:33 AM
  #11  
Acer2428
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Default RE: PI vs Non PI bottom end

Rings are the weak point as far as durability on the bottom end.
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Old 04-28-2006, 12:40 AM
  #12  
amoosenamedhank
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Default RE: PI vs Non PI bottom end

I have heard of really high mileage cars that have cracked cams
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Old 04-28-2006, 01:16 AM
  #13  
Stang9946
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Default RE: PI vs Non PI bottom end

Just get the engine rebuilt. 111,000 miles is not a lot...it's no short throw either, but not A LOT. I'd consider 135,000+ a lot.
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Old 04-28-2006, 10:38 AM
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01BlueCobraVert
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Default RE: PI vs Non PI bottom end

When I do the head swap should i look into replacing the rings or will that require pulling he pistons out of the block? Thanks
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Old 04-28-2006, 10:41 AM
  #15  
monkeydude3
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Default RE: PI vs Non PI bottom end

my engine is startin to lose the oil through the valve seals. The level goes down but there are no other signs? as in plugs look perfect and NO smoke. No leaks either (anymore haha)

I'm gonna run my engine till it dies. Then something totally awesome gets put in it's place
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