Ime having the same problem with my cylinder barrels tried putting it in a oven for 2 hours baring it back and front still can’t get them off so it looks like ime going to have to destroy the cylinder block might cut the crankshaft because I’ve got a spare one and spare cylinder block with pistons but the block on the crancases i can’t get off is really good because these engines are getting few and far between any help i know it’s muc and crap in the studs I’ve even made up tools to go down the studs got most of them done but the four middle ones are proving to be the problem ones head and hardcore thanks everyone for reading this
