2001-2004 LB7 Duramax NEW Premium Stock Plus Cylinder Heads CORE CHARGE OF $700 APPLIES

The Industrial Injection PDM-LB7SHN is a brand new, stock replacement cylinder head designed for the 2001-2004 LB7 Duramax 6.6L engine. These GM OE cylinder heads feature a reinforced casting to enhance durability and help prevent cracking, a common issue with original LB7 cylinder heads. Each head is pressure tested and comes fully loaded and assembled with new factory injector cups, ensuring a complete and ready-to-install unit. The 'Stock Plus' designation and the mention of 'Fire Ring Grooves' by a retailer suggest it's an upgraded version of a stock head, offering improved reliability over OEM. They are sold as a pair (Right Hand & Left Hand Set).