LCGB Forums

by **Lammer205** » Sun May 29, 2016 11:51 pm

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

by **rossclark** » Mon May 30, 2016 12:26 am

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.

by **Lammer205** » Mon May 30, 2016 7:53 am

Thanks for that ,Yeah it's 9.1 comp ratio will check squish and try it hopefully be ok.Lammer205

by **gaz_powell** » Mon May 30, 2016 9:25 am

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.

by **Lammer205** » Mon May 30, 2016 9:31 am

Yeah going from MRB to Wossner just different crown heights so you think ok?Lammer205

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