R the 2 and 4 valve heads interchangable

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  • antbanks
    #1

    R the 2 and 4 valve heads interchangable

    If this guy will call me back I will have a 87 gs1000 and was wondering if anyone knew if the 2 valve engine will accept the 4 valve head?? I have a 82 gs1100 cruiser shaft drive.
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    • Guest
      #2
      no
      ...........................

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        • Billy Ricks
          #3
          Even if it would somehow bolt on you would have a problem with valve pockets in the pistons. A simple piston swap might take care of that but Chef gave it to you short and sweet, no.

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            • sparki
              #4
              Originally posted by Billy Ricks
              Even if it would somehow bolt on you would have a problem with valve pockets in the pistons. A simple piston swap might take care of that but Chef gave it to you short and sweet, no.
              studs are in different places....

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                • Billy Ricks
                  #5
                  Originally posted by sparki
                  studs are in different places....
                  No doubt, just saying even if it would bolt on there are other problems that would have to be addressed. It's not as simple as just dropping a head on. Cam sprockets are probably different too which would open another can of worms.

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                    • antbanks
                      #6
                      Ok fellas Thanks for crushing my dream...just kidding, i figured there would b a big difference!

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                        • sparki
                          #7
                          Originally posted by Billy Ricks
                          No doubt, just saying even if it would bolt on there are other problems that would have to be addressed. It's not as simple as just dropping a head on. Cam sprockets are probably different too which would open another can of worms.
                          yes... a lot of difference but still a moot point if nothing can be made to fit over the studs wouldn't ya say

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                            • Hap Call
                              #8
                              There were some folks that adapted the air/oil cooled GSX-R head to the GS1100/GS1150 engine. My understanding is that it really didn't produce a significant improvement in performance for the effort.

                              Hap

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