S3 Cylinder head does not fit

[grachal]

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?)

 

[Demi]

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.

 

[grachal]

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?

 

[Demi]

it should hold up just fine.

 

[(F5)]

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.