Originally Posted by Pablo83
When building this type of bike, are there certain years of the XL350 that are preferred over others?
Probably 99.5% of flattracker XL350s are either '74-75 sideport bikes or '76-78 centerport bikes, with the '74-75 being probably the more common. Sideport/centerport refers to the geometry of the intake port. The bike in the pic is a sideport, and is actually starting to look pretty handsome considering what it looked like the first time KawFreak raced it, maybe what is it two years ago now? Maxed out one of these engines can be bored and stroked out to just shy of 500cc and eek past 50hp.