BRAND NEW GM 5.0 OHV Cylinder Head PAIR 305 VORTEC Casting # 520 / 059 L30 Mercruiser 1996 - 2002

Item Details:

- This listing is for a Brand New GM 5.0 #059 / 520 aftermarket cylinder head pair

- This head will include brand new valves, springs, retainers, keepers and valve stem seals

- Highest grade cast iron 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

- Fitment and performance are identical to OEM castings

NO UPFRONT CORE CHARGE

CORE RETURN REQUIRED WITHIN 21 DAYS OF DELIVERY

PREPAID RETURN LABEL(S) PROVIDED

**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. WARRANTY DOES NOT COVER ANY LABOR AND/ OR ADDITIONAL COSTS.