big bore

[yamW400R]

does anyone have a eric gore big bore kit on there bike? looking at the 420 kit for more power. is it comparable to the 426 in power?

[MN_Kevin]

yes, yes, yes

[SXP]

Second Kevin above.

Eric actually rebuilt my crank with the 426 rod/bearing/pin and sent me a nikasil coated cylider that had been bored out to 95 mm. So I'm actually at ~ 426-430 cc.

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