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ProMaxx Performance CHE870N

Cylinder Head GM 6.6L Duramax LLY 8GF1 Diesel Assembled

ProMaxx Performance CHE870N
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Estimated ship date 11/29/17 if Ordered Today
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ProMaxx Performance CHE870N Cylinder Head GM 6.6L Duramax LLY 8GF1 Diesel Assembled $895.99
Cylinder Head
  • GM 6.6L Duramax LLY (8GF1) Diesel
  • 2004.5-2005
  • Assembled
  • Sold Individually, 1/Pkg.

  • ProMaxx Performance has the answer for the epidemic of cracked GM 6.6L cylinder heads. They have developed and designed this new cylinder head from the OE casting but improved the casting strength and thickness in all the crack prone areas. This is a direct bolt-on cylinder head that replaces your difficult to access, fractured factory cylinder heads. This head is available as a fully machined bare casting or fully assembled and pressure checked!


    • New Castings Are Thicker Than OEM
    • Improved Casting In ''Problem Areas''
    • Assembled Head Features New Components: Springs, Valves, Retainers, Locks, Etc.
    • Assembled Heads Come Ready To Bolt On

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