2001-2016 Duramax LB7/LLY/LBZ/LMM/LML Cast Iron Cylinder Heads
2001-2016 DuramaxLB7/LLY/LBZ/LMM/LML Cast Iron Cylinder Heads 2001-2016 Duramax LB7/LLY/LBZ/LMM/LML Cast Iron Cylinder Heads The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between...