C90Club.co.uk

Posted: **Tue Mar 07, 2017 8:17 pm**

Posted: **Tue Mar 07, 2017 8:47 pm**

Early bi-metal 70 head by the looks of it so will/should be big valve.

steve g

Posted: **Tue Mar 07, 2017 10:37 pm**

Steve what is a bi-metal 70 head please, just myself a c70 and i need to find out about Cubs and the C70

Ta!
Lyn.

Posted: **Tue Mar 07, 2017 10:45 pm**

It has a steel combustion chamber , 50 cc engines also had one in some models

Posted: **Tue Mar 07, 2017 11:21 pm**

kayz1 wrote:Steve what is a bi-metal 70 head please, just myself a c70 and i need to find out about Cubs and the C70 Ta!
Lyn.

Hi Lyn.
This may help, one of the guides i put together showing some of the bits i have used on engine builds.

steve g

Posted: **Tue Mar 07, 2017 11:53 pm**

Posted: **Wed Mar 08, 2017 12:29 am**

Thanks Alan, forgot to but the link in there its been a long day.

steve g

Posted: **Wed Mar 08, 2017 1:17 am**

Many thanks i will read it now..
Lyn.

could be a c70 big valve head