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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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  #1  
Old 01-16-2021, 09:41 AM
grachal grachal is offline
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Default S3 Cylinder head does not fit

Hello,
I bought a S3 cylinder head for my 1998 Gasgas EC250, but it is too big. On the website it said "fits from 1998-2017". The Bolt circle on the S3 head is 95mm. The one on my cylinder is 88mm. I did not really find something online, but may my bike have a 1997 motor? It also has the balancer shaft.
If so, can i get the S3 head for a 1997 motor? I really want it, but i dont want to buy a new cylinder (but the cylinder would interchange between 97 and 98 onwards, right?)


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Old 01-16-2021, 11:38 AM
Demi Demi is offline
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may out of luck, if you still have the 97 head, can always get that rechambered and perhaps cerakoted if you are looking for an aesthetic boost.
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Old 01-16-2021, 11:53 AM
grachal grachal is offline
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I still have the original head. I bought the S3 head mainly for aesthetics. So you think if i get it ceracoated it will hold up to the temperature?
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Old 01-16-2021, 12:49 PM
Demi Demi is offline
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it should hold up just fine.
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Old 01-16-2021, 10:19 PM
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(F5) (F5) is offline
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Ceracoat will be fine. Getting the chamber reprofiled and squish down to 1mm will make you happy with the result. Need to get chamber done in conjunction with skim.
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