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Message: [QUOTE="crawl9, post: 556248, member: 38739"] What are the Advantages and Disadvantages of Have a motor that is termed Squared and How does this effect power?? Say you built a 125 and was wanting to make it like a 147 cc. how would makeing it a 54mm bore with a 64.5 stroke(makes it a 147) Differ from making it a 57 Bore and a 57.5 Stroke (makes it a 147) Differ from making it a 59 bore and a 54. stroke.making it a 147 They all would have the Same Displacment. Would one have more low end or top end as compared as the other? Or could they all be set up to make the same power with porting and head mods? [/QUOTE]