I have a small issue. I entrusted my Westerbeke 7.0BCG (daihatsu ED10) cylinder head to a machine shop and they lost it. Thats a whole different discussion... sigh... however i was able to get a new head, however i need the camshaft. I could order it from westerbeke however I cannot figure out which of these serial numbers is located where? Maybe someone here could help. Thats not a typo its.... 1S56257 in the parts manual... i have no idea where to find this secondary number, i have even looked in the comparable Daihatsu ED10 service manual for the car engine of the same make... If anyone could help it would be very much appreciated.