hy 30 cc rod - 30mm?

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I should have measured mine before I sold it... It is a 36mm piston though so it would be a 30mm stroke to get 30cc (30.5).
 
yea- I lost another base gasket this afternoon, looked at the jugs gear side flange its stamped 30 -36. It was time for a piston ring anyways-- no biggie. soo should i get the felt pen and add a .5 cc to the engine cover? it says 30cc!! just kidding--- oh- the smaller hy engine has a 28mm connecting rod- lots of folks call these 30.5s stroker motors- they are long rod motors -- unless the crankshafts pin has been moved- just my opinion---
 
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