90Q head / lifter questions

[duncan]

Hi guys,

In the middle of a head gasket job, and have a few 'while I'm in there's 
to attend to...

I have the head off my 90Q (KV engine), and the lifters out. 8 are very 
stiff, to the point of not moving, and 2 are very soft (easy to 
compress). First guess is that the soft ones are bad. Are the others 
supposed to be this stiff though, or are they seized? Just looking for 
confirmation here.

Also, what's the best place to pick up some new lifters? Dealer rates 
are just too much to replace all 10.
Looking at replacing valve guides too, at least for the exhaust valves. 
Are these just press out, press in?

While I'm at it, does anyone have a reference to how much the CR will 
raise vs. thickness skimmed off the head?

Cheers
Duncan

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