I did have to have the 6.000mm ball bearing pushed thru them after fitting to hone them my local machine shop did it when I had the head skimmed
the bum part is the smaller seals I had considered contacting Trevor at Andrews precision to get some normal style phosphor bronze guides made up so the use of the normal seal could work or I guess you could fit the supertech ones upside down
Is this normal for a head gasket open at the corner?
I know it is open in some places but im sure it is closed at the corners
I had the head on and took it off again to double check the valves at no.9 carrier cap. Not sure if i damaged the gasket or not cant remember how they look.
The stuck valve i had was a bent valve apparently, which caused the guide to crack
Anyway got that fixed for a tenner which i was pleased with, To buy a guide itself cost i think 8 quid minimum, I took them a valve they supplied and fitted the guide