2001-2004 GM 6.6L Duramax Cast Iron Cylinder Head (One) LB7

2003-2007 Ford 6.0L Powerstroke Cylinder Head Stepped Dowel Pins PPE Diesel

2004.5-2010 GM 6.6L Duramax Cast Iron Cylinder Head (One) LLY/LBZ/LMM

01-04 GM 6.6L Duramax Ported Cast Iron Cylinder Head (One) LB7 Pacific Performance Engineering

Cylinder Head (One) Cast Iron - GM 6.6L Duramax 2004.5-2010 LLY/LBZ/LMM Ported Pacific Performance Engineering

2011-2016 GM 6.6L Duramax Cast Iron Cylinder Head One LML PPE