Not that it matters that much but 1 1/16" is equal to 27 mm (1 1/16" = 1.0625"= 26.999mm). So if you happen to see that 1 1/16" 12pt Deep well Craftsman grab it, the injectors and crank bolt will never know the difference.

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Bob D.
Parrish, FL
1 SDL, 1 D, 1 TD, 1 Mog