What head is this? Strange part number?
 

I have a 1968 911T with its original engine, supposedly modified to S specs. The head part numbers are 901.104.305.0R dated 9/67 and 901.104.305.02 dated 6/67 - on the three heads I have off. This doesn't match any head numbers I've found, but I have very limited experience at this. What do I have?? Thanks for any help.

R901.104.305.02 is a 67-68 911S head and should have casting marking k1819c on it.

I don't know what the other one is, what is the casting marking on that one?

Thanks!! Yes, it does have K1819C. The other two have K1819O. This is great to hear!

are you sure they are k1819o? There is no "o" to the best of my knowledge. can you post a close-up pic.

You're right - dirt and my poor eyesight made the C look like an O. They're all K1819C

nice heads!

Shaun, perhaps I can impose one more ID question. I finally found a cam and wonder if they are also early S. The engine is only partially apart so I can't see the other one yet.
Part# 901.105.1090R
Casting# 28-12166 (possibly 12168)

I'm much more excited about proceeding with the restoration now.

Thanks,
George

George, what is stamped on the threaded end of the cam?

03 is stamped

Then you have a rare, perhaps special, cam and I can't help I'm sorry to say.

901.105.109 cams came in 3 flavors to the best of my knowledge. Note that 110 references the right side cam while 109 is left.

.01 is a 1965 Solex center lube cam

.04 is 65-67 solex spray

.05 is a 911L cam

So there's room for .02 and .03

I hope you can find what each indicates, I'm very interested.

Wow! Thanks for your help. I'll let you know if I find out.

Cheers!