Re: a really BORING question

[Bill Watson <wwatson5@xxxxxxxxx>]

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Both.

If you increase the bore size from 4.000" to 4.030", for example, the
pistons must also be increased in diameter by 0.030" or the pistons/rings
will be too small to rub against the cylinder walls.  When pistons/rings do
not rub against the cylinder wall, you have no compression.

If you buy 4.030" pistons and do not bore the cylinders out by .030", the
pistons/rings will be too big to fit the cylinder.

Bill
Vancouver, BC




----- Original Message ----- 
From: "Robert neal zimmerman" <northwestweirdo@xxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Friday, June 03, 2005 4:37 PM
Subject: a really BORING question


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 I have a question I have never thought about before.
    When somebody says " its bored .030  over "-   WHICH is .030, the
    hole or the piston?   They cant be both .030!!   Is the hole
    slightly bigger or is the piston slightly smaller?
   Neal ZImmerman, Eugene oregon

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