Description
Billet Aluminum Upper Valve Cover for Duramax LLY-LBZ-LMM engines.
- Uses stock bolts, gaskets and grommets.
- Sold as a pair.
- Optional drill and tap for -12 AN breather holes.
- These are machined to a mirror like finish. Choose the polished option for that extra bit of sparkle.
This is what all of the best dressed Duramax engines are wearing this year!
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