Hello;
I am working on a 1952 GMC 9430 that has a Canadian 216 motor which is built on a 235 block. I have finally found a good head which has been ground and cleaned and all ready to go. I was comparing the gasket to the head and block and noticed that there is two 1" openings in the head that do not line up with an opening in the head or block. See the picture at this link which shows the gasket and head lined up. Look at the bottom of the head where the two 1" holes are;
http://s1142.photobucket.com/user/52_Ton/media/New%20Head/IMG_1950.jpg.html?sort=3&o=7

http://s1142.photobucket.com/user/52_Ton/media/New%20Head/IMG_1951.jpg.html?sort=3&o=6

The gasket will cover these openings with no hole in the block; http://s1142.photobucket.com/user/52_Ton/media/New%20Head/IMG_1956.jpg.html?sort=3&o=1

http://s1142.photobucket.com/user/52_Ton/media/New%20Head/IMG_1955.jpg.html?sort=3&o=2
Are these two holes just casting holes used to get the sand out during manufacturing?

One other question is the manual says to soak the gasket in water before the install. Should I do this or use the copper spray I have read about?

Thanks
Mark

Last edited by 52_Ton; 06/18/2015 1:39 AM. Reason: added pictures
1952 GMC 9430 one ton pickup, a work in progress

1952 1-ton pictures on Photobucket