GM 350 crate oil burner

[8door]

New intake manifold, new PVC, all plugs clean.
All new top parts installed, only old stuff are Rams Horns, and alternator.
The start ups, hot or cold produced oil ( blue ) smoke . Lead me to suspect
exhaust seal leaks. Like I said all exhaust valve seals were defective.
Since those have been installed, there is no smoke after about 50 miles or so.
PS I will check compression.

[71tahoe]

Sounds more like the seals just broke down after 5 inert years and then they snapped like an old rubber band when you started using it. I don't think it would have made much difference where it was manufactured since they would have used the same quality valve seals.

[8door]

Originally Posted by 8door

New intake manifold, new PVC, all plugs clean.
All new top parts installed, only old stuff are Rams Horns, and alternator.
The start ups, hot or cold produced oil ( blue ) smoke . Lead me to suspect
exhaust seal leaks. Like I said all exhaust valve seals were defective.
Since those have been installed, there is no smoke after about 50 miles or so.
PS I will check compression.

Update : Another 100 miles....... Zero Oil use. As of today.
There have been some internet conversations about Mexico
installation wrong cam , resulting in contact of the keepers with valve seals.
I am contacting GM to verify this.

[8door]

Originally Posted by 8door

Update : Another 100 miles....... Zero Oil use. As of today.
There have been some internet conversations about Mexico cam
installation was wrong, resulting in contact of the keepers with valve seals.
I am contacting GM to verify this.

Questions regarding valve covers, mine are the stock covers that came
with crate engine.