I’ve dealt with this before and it is aggravating to say the least. Yes, remove the cylinder/ head assembly and try a wood dowel from inside the bore to tap the head off. If you can get a little movement, then work it in and out going from one bore to the other. The problem is corrosion around the head studs has locked the heads in place. Usually whatever penetrating oil you use won’t get past the corrosion until you get a little movement. Heads are scarce, so take your time and work carefully.
George
Thanks George, I may yet try removing the cylinder with the head still attached.
The powerhead is still hanging from my engine crane via the head.
Brass punch and hammer on the studs did nothing, nor the air hammer
on the studs. The last two days I’ve ignored the powerhead while I worked
on other components, but did spray some more penetrating oil on the studs.
Prepare to be boarded!
