<VV> 1965-1967 110HP with a/c low compression engine

[BobHelt at aol.com]

In a message dated 10/24/2006 1:06:26 PM US Mountain Standard Time,  
geoffj at unm.edu writes:

Kind of  makes me wonder why GM used such a big gasket step.  The idea was  
known then.

-Geoff Johnson



Geoff,
There have been reports from some of those who have elimimated the gasket  
step that over time and high mileage a buildup of residue in the chamber will  
cause/allow piston contact and resulting noise. Also, under racing conditions,  
piston expansion may possibly allow contact with residue if any exists. The  
factory always has to play it same, and design for long life and customer  
stupidity.
Regards,
Bob Helt