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52mm piston Confused

967 views 13 replies 7 participants last post by  OLDSCHOOL  
#1 ·
Ive seen different 88 kits, some with 50mm, 51mm, and 52mm piston whats the deal? They all clame to be 88cc, how is that possable? thanks for any info!!



Theres no replacement for displacement!!

Z50
 
#6 ·
Do you know The formula that figures out true "DISPLACEMENT" how to figure out CC's........PM me and I will tell you.





thanks OLDSCHOOL
 
#12 ·
I currently have a 52mm piston, stock 90 head, and stock crank. If i bought the 54 mm stroker crank that would give me a 115cc motor. What else would i have to buy other than the crank? will it bolt right in?
 
#14 ·
Hey Z,

I'm not sure about the 54mm crank..? but yes the 50mm should bolt right in. there are other things you have to be carefull of:



1). the skirt on the piston, the extra rod length may make the piston's skirt hit the crank when the piston is at bottom of the stroke..!



2). some stroke kits require that the cases are PRE BORED for clearences.





Thanks.......OLDSCHOOL