Wehrli Custom Fabrication LLY/LBZ/LMM Duramax Billet Upper Valve Cover Set

- Left and Right Upper Valve Covers
- CNC Machined Billet Aluminum
- Built in clearances for performance engines equipped with rocker studs
- Flush Head Stainless hardware
- Black Anodized #10 JIC / -10AN Fittings
- O-ring Seal
- Raw Finish Standard
- Optional Custom Color Powder Coat Finishes Available for Additional Charge
- Made in USA