Thread: the potential of the xt660/raptor 700 head
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Old 28-02-11, 00:35
dl700 dl700 is offline
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Quote:
Originally Posted by Kev View Post
Holy cow that is some big HP & Torque.

I can see it was bored & stroked 778cc, but what cam did you use in that build?
the camshaft used was one of our customer grinds named HDD5150, its a high rpm camshaft

the efficency of this combo stays true when brought down to a STock bore and stroke 686 cc making a better 8.0 cc per hp vs the 8.2 cc per hp with the 778