To figure-out where the exhaust seat depth was originally I cut a seat, put a valve in with its shim and bucket, dropped the cam in and checked the clearance to see where I was relative to where it used to be. The shim was on the thin side so I added .010 to get give me more room to work shim wise....which made me realize why I picked the depth I did on both intake and exhaust, the way larger valves need to be at least that deep for the seat to actually cut on the outer edge so it all worked out fine.
As I was grabbed the cam it was in my mind that like the valve guides I reamed the journals and called it good so OBVIOUSLY I plan to MEASURE the journal sizes before assembly this time so that is what was on my mind as I dropped the cam in....that's odd.....it pops it with what looks and feels like flex in the cam ...hmmm....I know I milled the journals straight after I finished welding last time.....or was that before I realized the exhaust ports needed work? either way, tonight I'll blend the new seats on the other head then have a good long look at the cam journal situation.
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