Spit cams?

[Mark J Bradakis <mjb@autox.team.net>]

Quick question, I think, I thought I knew this from memory.  Oh well.
Do the Spit 1147 and Mark 3 1296 have the same size cam journals, and the
Mark 4 1296 and 1500 have a different size?  Or did the resizing occur
with the 1147 to 1296 change in the Mark 3?

mjb.