Hi I have an old 6 cylinder Bristol cylinder head on Ebay uk. Item no.150417557020.
This head is only missing one valve spring and retainer+two collets,All the rockers +push rods are still on the head ,also the rocker covers.
Condition is best described as nearly scrap, but it could be repaired (the edge of one chamber is deeply pitted and needs Tig welding then machining.
I have tried to describe the head honestly,and will e mail photos+ numbers to anyone interested.
Regards
Tom
EDIT:
direct link to item on eBay