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01-16 GM 6.6L Duramax Billet Main Cap Kit


  • Made out of Ductile Iron, which expands less than steel, with the same strength as 1045 steel.
  • Machinablility is better than 1045 steel.
  • Easier to achieve higher tolerances, and better surface finishes.
  • Taller, permiting the use of a girdle with out any spacers.

No Limit part number: DMX004001K

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Tags: DMX004001K , no , limit , GM , 6.6L , Duramax , Billet , Main , Cap