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Unless otherwise marked, all engines and parts are for competition use only; not legal for use on pollution controlled vehicles at any time.


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Billet Aluminum Upper Valve Covers LLY-LBZ-LMM

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Product Description

Billet Aluminum Upper Valve Cover for Duramax LLY-LBZ-LMM engines.


  • Uses stock bolts, gaskets and grommets.


  • Sold as a pair.


  • 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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