Topic: Valve clearance on '82 CB650 head?

[ThePwninator]

Hello!

I have posted this issue on the project page but thought i'd try here as well to see if i can get some more input.
I got my head back from vapor-blast in a sorry state and will need to machine it down quite heavily to get a flat surface (I think just by looking at it)



My questions is if anyone happens know what clearances i have to work with on this engine? As in the max amount that can be shaved off the head while keeping valve clearance? Or if there's a way of getting clearance without having to shave the pistons as well. My budget is quite tight right now and was hoping to get the engine back together for summer 

Any input appreciated

[bryanj]

Dont think there is a spec for skimming but i suspect 5 thou will clean that and should not affect clearance

[ThePwninator]

Dont think there is a spec for skimming but i suspect 5 thou will clean that and should not affect clearance

Thanks! I hope you are right. It looks awfully deep to me 

I will just have it machined and make sure they keep an eye on how much they needed to take and go from there