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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
I’m tearing down my 1985 FLTC to freshen up the heads and barrels. It appears to be a mostly stock EVO but I found this cam and adjustable pushrods and I can’t figure out what it is. Though I’m pretty sure it’s not stock. One lobe is marked “475” and another with “HW”. The gear is marked “77”.
Most all Evo cams that I am familiar with have a groove in the face of the cam gear..Yours does not, which would indicate a pre 77 cone shovel cam. Do you know what the base circle size is and the total height of the cam Lobe? Knowing the 2 would give you lift and maybe a clue as to who might have manufactured it.. Post measurements of both intake and exhaust..
Also with a degree wheel on the sprocket side of the crank and a dial indicator on the cam lobes you can record opening and closings of both lobes as well.. This is if you really want to know...
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