<VV> cylinder head drawings

[RoboMan91324 at aol.com]

Mike,
 
You give minimal info and I don't have head drawings in front of me but  
what you might be talking about is what are called "tolerances."  In  effect, 
the dimensions can be no larger than the biggest dimension and no  smaller 
than the smallest dimension.  What is correct is if the actual  dimension 
falls between the two dimensions.  Otherwise, it is said to be  "out of 
tolerance."
 
Doc
~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
In a message dated 11/12/2016 9:00:07 A.M. Pacific Standard Time,  
virtualvairs-request at corvair.org writes:

Message:  1
Date: Fri, 11 Nov 2016 11:01:13 -0800
From: "Mike McCrae"  <mmccrae6 at cox.net>
To: <fastvair at yahoogroups.com>,     <virtualvairs at corvair.org>
Subject: <VV> cylinder  head drawings
Message-ID:  <D9E55DDD5B1D4CCCB55A4FB56CD63F7D at MichaelPC>
Content-Type:  text/plain;    charset="iso-8859-1"

When referring to the  blueprints of the cylinder heads, there are two 
values given  for the  dimensions, one over the other.
Why is this, and which value is  correct...?

Mike  McCrae