Smoking quite a lot

SRRAE

Well-Known Forum User
My 300ZX TT is smoking quite a lot.
The car has always smoked out of the drivers side a little, and its been getting worse. The bottom end has been rebuilt compeletely all that is left original are the heads.
Today the passenger side has started to rattle like mad.

Both heads have new lifters and new valve oil seals. All I can think is left are the valve guides. Could old oil valve guides cause the engine to smoke?

Stuart.
 
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