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I have an 850 commando and have just picked up two heads 1 was listed as a combat head the other was listed as 750/850 ,they look the same .The combat (?) has a lot shaved off the head surface ,same valves ,32mm inlet ports with a "C" stamped on the top between the inlet rockercovers.The other head has 28mm inlet ports ,the resess in the head is the same size as the "c "head. Is one a combat head and the other 750 or 850 head .Steve sborbas@gmail.com
One seems to be a Combat j…
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Hi Steve, this may answer…
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Thanks for the information…
Thanks for the information ,wiyh this i should be able to work it out Thanks Again Steve
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One seems to be a Combat job and the other an early 750 with the small ports. I believe all 850 had the large ports but I may be wrong. Are there any RH nos on the heads? Unlikely if 750. Also, 850 heads have the two outer bolt holes on each side about 1.5mm further out than 750 types. Fins are different I think, one more on the 850?