Camshaft retainer caps.

[jacksdad]

Hi, I've bought a used cylinder head, got it very cheap, but! All 10 camshaft caps are missing, I do have a set from my scrapped head, but can they be fitted to this one?
I have a feeling they are machined as a complete set, in matched pairs, is this the case?
Thanks, Mike

[Boomer]

They are line bored as a set. Head needs it's matching caps and should have been sold with them. It's scrap without them.
You might get away with replacing one cap if yer lucky but I doubt if all of them will work.
What was wrong with your old head?

[jacksdad]

I just bought it as it was cheap! When it came, the caps were missing, I contacted the seller as soon as I'd unpacked it: Told him they are a matched set. He hasn't got the caps so refunded me. I've got the original head off my bike that has a broken exhaust stud/oilway damage so have all the bits. I did think they are a complete set, so nothing lost. 

[Boomer]

Cool, I'll have a look through my stuff and see if I have a head with caps that is serviceable and let you know.
I should have a couple of them somewhere in the garage or shed.
They will probably need the valves cleaning and lapping and new valve stem seals but otherwise should be usable.

[jacksdad]

Thats great George, thanks. I was going to rebuild this head, something I've done many times (Did my mates Z1R engine when we were just 18 years old....LONG time ago!). I actually really enjoy rebuilding engines, I also fitted a brand new head on my Isuzu Trooper, 3.0 Twin Cam 16 Valve Turbo Diesel..that was a huge bit of work! 
I'm planning on keeping my Gtr for a while, it is a cracking bike, hard to believe its 26 years old next, not perfect but what bike ever is?