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z50r engine help

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Dr_z50r

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Discussion starter · #1 ·
hi, i own a 1981 z50r in the UK that im planning on using only on the road and want to keep it looking standard except for maybe the engine and exhaust,
whats the largest cc you can get out of a z50r crank case?
im struggling to decide between building a z50r engine and get it professionally ported or buying a zongshen z155HO and getting the bore up kit which takes it to 178cc is it??

also where can i buy a planet minis cam sprocket cover? saw one on (youtube) thealexmanvideos z50r and really like them :D
 
Discussion starter · #6 ·
Classic Honda 50's Australia
thats a link to some 88cc heads with 49cc marking

i read that if i stick an 85cc barrel on a z50 engine it can be stroked to 115cc and then its just a matter of finding a nice big valve head to put on it?
not sure if thats true or not but sounds cheap and easy, by stroke does it mean fit a new crank? and what would i do about piston
 
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Dr_z50r
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