Fits 2001-2004 Duramax LB7 only.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the lower rubber valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers, orings, and return seals, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump with welded impeller and gear, and glow plugs

Fits 2004.5-2005 Duramax LLY only.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the upper (reuseable rubber) or lower (stainless steel shim) valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers and orings, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump with welded impeller, and glow plugs. All available on our site.

Fits 2006-2007 Duramax LBZ (also 2006 LLY Vin 2 carry over.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the upper (reuseable rubber) or lower (stainless steel shim) valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers and orings, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump, and glow plugs. All available on our site.

Fits 2007.5-2010 Duramax LMM which is the newer body style.

Kit contains all of the common gaskets and oring seals normally replaced in a head gasket job. We have never replaced the upper (reuseable rubber) or lower (stainless steel shim) valve cover gaskets unless destroyed so we have omitted them from this kit. Kit includes 2 grade C head gaskets, exhaust manifold and up pipe gaskets, injector install coppers and orings, themostat housing gaskets as well as orings for heater, hot pipe, and bypass tube, EGR gaskets, intake flat rings and orings along with a tube of AC Delco sealant for the intake manifold to head.

"We do not use the latest GM/LML style head gaskets in our kits. I believe that the LML style gasket is a cost cutting measure and that the riveted version of the original style gasket was and still is the best so this is what we provide." -JK

Recommended additions: ARP Head studs, thermostat pair, water pump, and glow plugs. All available on our site.

This is the short caulk tube version of the GM ultra gray. Very high quality sealant used for the rocker covers etc on the Dmax engines.