Bozzmancommeth

i suppose that you are right i was just curious thank you...do you have any advice for more power?

Hello everyone, I am new to this sight so please help me out. I have a 1974 DT360 Yamaha and i want to know what is the difference between the dt400 dt360 and sc500 motors. I have looked at each one and they all look the same except for the cylinder head. What is the true difference? I would love to switch my 360 cylinder with the sc500s