Take the rocker assembly off. Using a block of hardwood and a hammer strike the offending valve stems after a good soaking with your favorite penetrating oil. Don’t get too heavy handed but some force is necessary. If you have a fair size collection of 4 leaf clovers you may save yourself a trip to the machine shop. I’m sure someone will poo poo this idea but I have had success in the past and so have others.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)