Ok well the head gasket blew on my 2.0 Sunbird LE 1990, and I am in the process of replacing it. I went to reassemble the head and low and behold, one of the things that goes on top of the valve retainers to hold the cam followers straight is missing. What is this part called and where can i get one (or i guess a set if they only sell them in one).

I think its called a thrust piece - gm# 90076745 $9.11ea
I'm at work and I work in the parts dept at a Chevrolet Dealership.

Were are you from? I can locate the closest Dealship to you.

I know where the closest dealership is to me, I work at sears auto and we do business for parts with dealers so I will give them a call and bring one of them with me to see if they can help me out .