Help with identifying my head

[gatsby989]

I'm trying to identify the head on my mog. It's a 948 engine, and the casting on the head says CAM 4910 It also says 27 K 9

Can anyone shed some light on what kind of head this is, and perhaps how it compares with other heads that will fit a 948?

Thanks.

[chrisryder]

sounds like a normal 948 head to me. you can fit a 12G202 head off a 1098 minor with no problems. it's pretty much the same head, with slightly bigger valves, and it has a blanking plug to fit a temp gauge sender.

or you could go all-out and fit a 12G940 head off a 1275. if you can get one with the exhaust valves sunk enough to not hit the block, it's a relatively straight swap too, and much bigger valves

[gatsby989]

OK, thank you. The casting number doesn't appear in the Vizard book and I've not been able to find anything via google.

If it's a standard 948 head, that's good... there's room for improvement.

Of course, finding any head here in the states may be a problem. Will just keep my eyes open. It is a long term project.

[linearaudio]

Are you sure it is a "9", not a bad "8"??
Just hauled my old my old Metro head from under the bench, it is marked CAM4810. The CAM numbers appear to be a much later series than the numbering system used in the Moggy days, hence my suspicion!(mine is also a lovely pale yellow!!)
If it is a Metro head, then it will work as well as the original, but as others will tell you- if you want the old girl to shift, fit a 12G940 head- worth its price for the built in big ports and higher compression ratio which would cost a lot of time and effort to come near by modifying a standard head!

[bmcecosse]

It will be a 4810 - so called 'unleaded' head from a 998. No performance advantage - but does have better quality exhaust valves.... The seats are not hard - so it's not 'really' an unleaded head - but fortunately - that doesn't matter! If you do fit a 202 head - it needs a good 60 thou skimmed off - 80 thou would be better!