[timo38]

im just wondering if a stock honda 50cc motor can be fitted with a 110cc chinese bike head to make use of the larger valve, only thing im thinking is that the dome inside the head is going to be a larger diameter,

any help would be appreciated,

 

[melloyello]

You will need a 47mm or larger piston w/ a 70 style dome to make up for the bigger combustion chamber of the head. A piston for a xr70 will work.

Just go ahead and get this and be done w/ it.

http://www.dratv.com/xrallyect82t.html

 

[timo38]

this is for a z50 and im on the tightest of budgets and can get the head for pretty much nothing, any other opinions?