Shop By Category
Your Cart

04.5-05 GM 6.6 Duramax LLY Promaxx Bare Aluminum Cylinder Head

Fits: 2004.5-2005 GM 6.6 Duramax LLY

The ProMaxx Bare Aluminum Cylinder Head allows you to custom build the cylinder heads you need for you 2004.5-2005 GM 6.6L Duramax LLY. ProMaxx Performance's cylinder head is the answer to Duramax's crack-prone cylinder heads. This cylinder head was designed and manufactured using stock castings, but with the increased casting strength and thickness in those places that are prone to crackling. This head is a completely machined bare casting you may build with your own parts. 

ProMaxx: CHE871NB

Lame California Prop 65 Notice