2.2 SC Head on 2000 SC Block.

#1
Last summer I had fitted a 2.2 SC cylinder head on my 2000SC block. All seemed fine in fact she went really well however I have developed a noise. I have covered about 800 miles.Always hard to explain a noise, however best described as exhaust sound, but the exhaust is fine with no leaks. If I bring the revs up it virtually goes away. It is coming from the the 2nd cylinder away from the bulk head. If a remove HT lead the noise stops....However looking on this forum it seems folk believe a 2.2 head won’t work on a 2l block. (Wish I had looked last here last summer ) I feel as though I may be best to get my old head re built etc and fitted back on it’s original block. However before I spend the money I would appreciate the wise thoughts of the clever people on this site. Thanks in advance.
 
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sdibbers

Well-Known Member
#2
I’d be concerned. The valves on the 2200 head is larger than the 2000 head. They can hit the side of the cylinders on some occasions. I’d see if you can get hold of a Bore scope to see all is well.
 
#3
Funnily enough we were discussing just this at the local P6 meet last night! One of our members had done it many years ago and he could hear a small clicking noise. When they took the head off they found it as sdibbers described and that was the sound they could hear, not all the time because the valve was moving round!
 

Demetris

Well-Known Member
#5
I you want to take advantage of the bigger exhaust valves of the 2200 head on a 2000 block, you really have to create pockets in the block surface in order to accommodate the valves. Many years ago i used this practice in order to combine an A series big bore head with a small bore block.
 

sdibbers

Well-Known Member
#6
I you want to take advantage of the bigger exhaust valves of the 2200 head on a 2000 block, you really have to create pockets in the block surface in order to accommodate the valves. Many years ago i used this practice in order to combine an A series big bore head with a small bore block.
I guess you'd have to switch to a 2200 head gasket for that?
 
#9
Thanks for your help and replying to my question.
Guess I’ll be looking for a reputable engineering company that can rebuild my old head. I’ll keep this post updated, and let you know what I find when I take off my current head.
 
#12
Hi I'm new here. I'm looking at buying a Series 1 car and have discovered that it has a 2200 SC head on a 2000 SC block. I've seen above in this thread that this is supposedly a no-go due to the 2200 exhaust valves being too large for the bore on the 2000 block. However, on this car the compression seems good all around and the car runs just fine. Does anyone have actual number for the valve sizes on 2000 SC and 2200 SC heads? I know the 2200 TC exhaust valves are larger. Is this definitely the case for the SC?

Thanks!
 
#13
My problem that started this thread turned out to be nothing more than a slight leak on the manifold which has now been fixed. My 2 L SC has been running the 2.2 head Now for around 1600 miles and all seems okay. On tick over there might be a very slight clicking noise, however this could just be my imagination. To be honest everything seems fine. Famous last words....
 
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