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  1. #1
    cmherrera's Avatar
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    Riva's S/S cylinders or 1300r cylinders

    I have a set of Riva's S/S cylinders and I'm wondering what would be better. Running the Riva cylinders or running stock GP1300R 84mm cylinders? Heres what else I have, tripple factory pipes,MSD total loss, Novi 48, Riva head,Dominator intake,and r&d stuffers. I would like to do 80MPH in Guam.


  2. #2
    cmherrera's Avatar
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    Here are some pictures of the Riva cylinders. any one know who ported this?
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  3. #3
    flyboy's Avatar
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    that's a sleeved cylinder. 1300 ported would be your best bet.

  4. #4
    mrbtd's Avatar
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    Why not bore the sleeved cylinders to 84mm ?

  5. #5
    cmherrera's Avatar
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    Because they use flat top pistons. anybody know where I can get 84mm flat top pistons?

  6. #6
    mrbtd's Avatar
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    I am no engine builder...But the head would be more effected by the flat top part. I dont know how they change the port timinig for the tripples or flat tops etc.. But I would think you could go 84mm and get a new head. Just remember to get an A size 84mm pistons so you have room to grow.

  7. #7

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    If the sleeve has wall to cut 4mm in total, 2mm each side of the sleeve,would be better in HP than the stock 1300cc cyl's.
    Stock cyl's stock piston's
    Riva SS cyl's - flat top Pro-X 83mm Kaw piston's or flat top wiseco 84mm Kawasaki piston's
    Last edited by jbracing; 02-08-2008 at 07:31 AM.

  8. #8
    Me Hahn and Joe H204YOU's Avatar
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    I was going to do that with my s/s top end,but believe the bore would leave the sleeves too thin,better off going 1300 cyls or bore and re-nick 1200's.

  9. #9
    cmherrera's Avatar
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    I think I will go with the 1300 & have them ported. thanks guys.

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