Engine displacement????

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I have a wiseco 10.25:1 84mm 0.040 over kit in mine. comes out to 357 exactly if you use stock thickness gaskets, slightly more if theyre thicker
 
Gasket thickness has nothing to do with displacement

83mm- 348cc
83.5mm- 353cc
84mm- 357cc
84.5mm- 362cc
85mm- 366cc

+4 stroke 84mm- 379
+4 stroke 85mm- 388

That's what I remember off my head.
 
For every .040" (1mm) of bore 9cc is added to the displacement. For every 1mm of stroke add 5.5cc.
 
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