If your 2JZGTE Supra smokes on start-up in the morning, here is most likely the reason. Oil sits in your cylinder head over night and will seep past an old rubber seal and if the valve is open will make it to the piston area. When the car is started a puff or more of smoke comes out the exhaust.

Valve stem seal leakage is a common phenomena on the 1993-1998 Toyota Supra 2JZGTE engine as it gets higher miles. If you have a "puff" of whitish-blue smoke on morning start-up, or when the car hasn't been started in a while, then this is the culprit.

Is this a major problem? To be honest no, but it annoys many Supra owners, so we put together a genuine Toyota parts package that includes all 24 valve stem seals, plus all the gaskets, o-rings, hoses you need to do the job right.

Parts list:
All intake valve stem seals
All exhaust valve stem seals
Intake Cam seal
Exhaust Cam seal
Both valve cover gaskets
Both breather hoses between covers

These are ALL Toyota genuine parts, aside from the valve stem seals which work just as good or better and cost much less.

Picture shows a leaky valve stem seal next to a new one.