Purchased some R/T heads and noticed when I got home and looked them over a few broken guide bosses in the intake ports. (3 out of the 8). Took them by one cylinder head shop and the owner said they would probably be ok just cleaning up the edges of the broken guide to avoid chipping but suggested liners as well.
Another shop said at least those 3 (and preferably all 8) intake valve guides need to be drilled out and False Guides put in.
Both shops agreed new seats would need to be...
Integral Valve Guide (Broken Boss) Repair Options
