400ex

[400exMO]

Hey pappy I've been seeing some people with 400ex's and they've got their entire engines pc'd. I'm wondering if you can do this and will it hold up? Or is it a waste of money?

[Pappy]

the center cases and side covers can be done, but i avoid doing cylinders and heads simply because of the heat the pc traps in. being air cooled, the 400ex doesnt need higher cylinder temps IMO