ZZ502 Problems

[snorider6]

I have a ZZ502 we just installed have about 500-600 miles on it. when it sits for a couple of days, gray smoke comes out when you first start it. also under hard accelleration it smokes between shifts. is this something to be concerned about? thank you for your help.

[Vegas69]

I did a lot of research on the zz502 before I decided on my engine. They are known for sucking oil through the valve guides right from the factory. Has your oil level dropped?

[snorider6]

Hard to tell ive changed it 4 times because of flooding issues.I have heard they have problems with valve guide seals leaking.I have to do some more research.Thanks for your reply.