Will a 4mm work with my set up

[bustedknuckles]

Ok I bought the Athena 68mm kit about a month ago, I haven't had a chance to put the motor together yet. I was wondering what I would have to do to in order to get a 4mm crank to work with that set up.

[trickedcarbine]

Depends, did you buy it for stock stroke?

[bustedknuckles]

Stroke says 54mm so yes

[oldskool]

You would have to port your cylinders for a 58mm stroke,shave head unless you have a cool head, then you just need domes cut for +4mil crank. Then your piston choice will depend on whether you go with long rod(115MM) or short rod(110mm)