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  1. #1

    1200 and 1300 Riva/R&D heads differences

    I figure you guys would know pretty quickly whether this is doable, but are these heads interchangable? The bore X stroke for the 1300 is 84X78mm v. 80X78mm for the 1200. Didn't know if that was significant enough... .

    Thanks dudes.


  2. #2

    Join Date
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    you can have the 1200 heads machined for bigger bore,but don't use heads with bigger diameter-no workey

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