Is there any difference between the y8 timing belt and the z6?? I have an 89 si with a z6 bottom end and a y8 topend. I was told to use the y8 timing belt, I work at Oreilly auto and the belts r the same part numbers. So can someone give me a tooth count for both belts please.

 

if they both have the same part numbers and you work there then why dont you just count the teeth

 

It's the same part number which means it's the same amount of teeth 104 but I was told to use the y8 timing gear and the y8 belt on my motor which is a z6 bottom y8 top but there is no difference in the aftermarket part. So as I was askin is there a different y8 belt that is not in the aftermarket auto parts world

 

And if so how many teeth. I've already talked to aem about the camgear they r the same 38 teeth for both the z6 and the y8 motors