1973 JD 600 engine parts????

[tmartin]

I am working on a 1973 JD 600. Type 6000b serial 005013. Engine model kec440 serial5514095. I need points and condensors for this as well as pistons for this motor. I have access to microfiche for these but am having trouble making sense of the serial number breakdowns. I have 2 choices for points and 2 for condensors and am also looking for .010 over pistons. For points i come up with am53168 and am53170. For condensors i come up with a 18-000-740 and a am53063. I am looking for the correct ones for my serial number but need insight. Thanks.