Cost of machining a head

KZB2 650 wrote: Just pulled my kz650 head and I'm thinkin much more than .005 thou will touch the intake valve. I realize they'll remove the valves before cutting but Is this common for the valve to be sticking out of the head if you cut it .020 or .030?

I believe you can take at least .030" off the head, and I know you can take off .025" (I've done that), and I've heard that some take off .035". Yes the valve sticks up above the surface, so be aware of that if you bench shim the cams or you'll bend the valves (seen that happen too).

Slot the cam sprockets so you can time the cams.

Conventional wisdom says you can cut all the way to the edge of the 45 degree angle on the valve seat.

lemo32 wrote: wouldnt removing that much metal alter cam timing?

Yep

chrispysaki wrote: Thanks for the input! Anyone know of a reputable place in the Milwaukee, WI area to have this done?

Here's a great shop out here on the east coast. Kim knows his stuff with GPz's and very reasonable !

www.carolinacycle.net/en/