Thanks Geeto. I am in the process of installing K cylinders, pistons and head on my '78 Super Sport and I needed to know whether the cam had to swap also. Any other pointers you guys can give me on this procedure would be greatly appreciated.
whenever someone has the motor apart on these I say put in a big bore kit. It is such a pain in the arse to take the out of the frame and tear them down, and you won't have to do it again for atleast another 50K miles (unless a gasket goes).
Take a straight edge and make sure the cylinder head and cylinder block are not warped. This is usually the first gasket to go. Also pay really close attention to the o-rings that go in the cylinder block (if you are using a 73 and later K block that has these), as they often pop too and are crutial to having a leak free honda engine (as well as top end oiling).
If you are going to do an upgrade, I hear a 75-76 supersport cam isn't a bad cam to run, espically with your 1978 carbs with the accelerator pump.