Quote:
Originally Posted by adamo
I live in the Toronto Ontario area. Do you know who possibly ported them? Also are you sure they are 64cc and not bigger?
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They have not been ported. They must have been slightly milled at some point, probably to clean up the surface. I measured a couple of chambers, and they were 64 cc's. The intake runners measure 176 cc's, and the exhaust runners measure 164 cc's. Both are stock specs.