Steven66 Posted May 4, 2019 Report Share Posted May 4, 2019 My topend was getting a little worn and since it doesn’t have an ideal port for my riding style (it’s drag ported and I trail / MX) I decided to get a different set of trail/dune ported cylinders. My old topend has a pro design coolhead but I’m debating on getting a driveline head since it’s designed to use the stock length studs which is what the new cylinders have. Are there any cooling differences between the two heads? There’s nothing physically wrong with the coolhead, I figured I could sell the old topend as a complete kit that can be rehoned and reringed and just use the driveline head if it has the same/better cooling capacity. Quote Link to comment Share on other sites More sharing options...
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