I might have the common cylinder head problem on my -02 5.3 Tahoe.
I also run LPG so the the issues with valve saets are also consering me.
What alternatives do I have? As i se i can do.

1-Rebuild the heads with new seats and weld the heads, is this alu weldable ?
2- Buy second hand heads from a newer engine, from what year ?
3- Aftermarket heads ?

Anyone have any comments to these solutions ?

Regards

Olav