PPE Ported Cast Iron Cylinder Head 04.5-10 GM 6.6L Duramax LLY/LBZ/LMM MA-10512 Level 3: 80 HP –

Level 3: 80 HP – 150 Lb-ft TQ

Flood: Excellent work light or "scene light" with an extremely smooth 60‚° circle that projects about 60 ft)

and the ability to have your fog lights on with high beams

stronger gears

PPE Ported Cast Iron Cylinder Head 04.5-10 GM 6.6L Duramax LLY/LBZ/LMM MA-10512 Level 3: 80 HP –Upgrade your 2004. 5 2010 GM 6. 6L Duramax LLY LBZ LMM with PPE's Ported Cast Iron Cylinder Heads, designed for superior durability and performance. Over time, OEM cast aluminum cylinder heads can fall short due to the mismatch in heat expansion rates between the aluminum heads and cast iron block, leading to head gasket issues, warping, or even cracking in high performance situations. PPEs ported cast iron heads, made from high quality alloyed gray