NEW Chevy 6.6 DURAMAX DIESEL Cylinder Head Pair Silverado 2500 GM GMC Sierra 3500 VIN 2 Truck Workhorse 2004 - 2005 LLY

Item Details:
- This listing is for a pair of brand new Chevy 6.6 #LLY aftermarket cylinder heads
- Highest grade aluminum material used in manufacturing
- Thicker decks for greater strength & Improved flow design to resist cracking
- Hardened exhaust seats (stellite)
- CNC machined guides and 3 angle valve finish on all seats
- Fully assembled in house with new valves, new valve springs, new retainers, new keepers, & new valve stem seals
- Ready to plug and play!



NO UPFRONT CORE CHARGE

CORE RETURN REQUIRED WITHIN 21 DAYS OF DELIVERY

PREPAID RETURN LABEL(S) PROVIDED

FAILURE TO RETURN CORE(S) WILL RESULT IN $350 CORE CHARGE PER CORE & COLLECTIONS FEES

**CORES MUST MATCH THE HEADS PURCHASED**

**NO CAM SEALS HAVE BEEN INSTALLED ON ANY OF OUR HEADS**



WARRANTY
ADV Cylinder Heads offers a 3 Year Unlimited Mile Warranty on all cylinder heads sold, except on High Performance heads. We ask that when installing the cylinder head make sure you are using the recommended head gasket as the manufacturer requires. You may also order the headset along with your cylinder head. Please make sure that the cooling system is in place and that the hoses, water pump, thermostat, and radiator are in GOOD working condition. Please understand that we are just selling the cylinder head and if any other part in the vehicle is old or damaged it can and will cause harm, or overheat the cylinder head. Every head sold will come with Heat Tabs which if removed will VOID your warranty. This heat tab’s center will melt if the cylinder head overheated, causing the warranty to be VOID. FAILURE TO RETURN YOUR CORE(S) WILL VOID WARRANTY. WARRANTY DOES NOT COVER ANY LABOR AND/ OR ADDITIONAL COSTS.