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ProMaxx Performance CHE870NB

Cylinder Head GM 6.6L Duramax LLY 8GF1 Diesel Bare

ProMaxx Performance CHE870NB
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723-CHE870NB NEW

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Estimated ship date 10/03/17 if Ordered Today
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ProMaxx Performance CHE870NB Cylinder Head GM 6.6L Duramax LLY 8GF1 Diesel Bare $524.99
Cylinder Head
  • GM 6.6L Duramax LLY (8GF1) Diesel
  • 2004.5-2005
  • Bare
  • 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 cast iron 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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