Cylinder head exhaust nut thread size

Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models

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Updated: 

The dimensions of the original cylinder head exhaust nuts are as follows:

  • 48 mm OD
  • 1.5 mm thread pitch
  • 14 mm or 17 mm in length (I've seen both...I suspect the 14 mm is a more accurate original dimenion, but may not be deep enough for some header pipes? I really don't know for sure.)