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Cylinder head?

PostPosted: Sun May 29, 2016 11:51 pm
by Lammer205
Is a cylinder head that came with a kit which had a 30mm crown height piston ok to use with a piston with a 39mm crown height? Lammer205

Re: Cylinder head?

PostPosted: Mon May 30, 2016 12:26 am
by rossclark
Should be, but check the profile of the piston crown to the head and confirm the squish setting.

You should also check the final compression ratio.

Re: Cylinder head?

PostPosted: Mon May 30, 2016 7:53 am
by Lammer205
Thanks for that ,Yeah it's 9.1 comp ratio will check squish and try it hopefully be ok.Lammer205

Re: Cylinder head?

PostPosted: Mon May 30, 2016 9:25 am
by gaz_powell
If is a purpose made lam piston ie racetour/bgm, af wosner etc then yes as they use the same crown profile as traditional lam, but it jap you will have to rework the head profile. I had to on my yam it 175 in a ts1 and in a malossi 172 with a suzuki ts185 in a vespa.
And as said always check the squish.

Re: Cylinder head?

PostPosted: Mon May 30, 2016 9:31 am
by Lammer205
Yeah going from MRB to Wossner just different crown heights so you think ok?Lammer205