A question for the specialists out here.... I have a XL600LM (stroke & bore like the XR600) in the shop and the head and rocker cover are a mess and ready for the garbage can. I want to put a rebuild and ported XR600 - single carb - head on the XL cylinder... There is a difference in bolt and dowel pin size ,I know but is it possible to use the XR600 head and rocker cover in combo with the XL cam,camchain and rockers? The thing will also receive a 102mm JE XR600 piston and a FCR41 carb. Any thoughts?