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    Valves sizes

    Hi what is lagerest valvs that can be use in a 82/83 1100 head

    #2
    28.5 and 24.0 On the stock seats .
    1980 Suzuki GS550E, 1981 Suzuki GS 1100EX all stock, 1983 Suzuki GS 1100EX modified, 1985 GS1150E, 1998 Honda Valkyrie Tourer, 1971 Kawasaki Mach lll 500 H1, 1973 Kawasaki Mach lV 750 H2.

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      #3
      Originally posted by tbirdhd View Post
      Hi what is lagerest valvs that can be use in a 82/83 1100 head
      8-valve or 16-valve engine?

      .
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      mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
      hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
      #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
      #2 son: 1980 GS1000G
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      Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
      (Click on my username in the upper-left corner for e-mail info.)

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        #4
        16 valve ,

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          #5
          Actually, 28.5 and 24.5. Some guys have put 29s on the stock intake seats but I won't do it. The seat is too close to the aluminum in the chamber! The reason most go 28.5 and 24 is because the 24.5 exhaust valve is a special order and the 28.5s and 24s are off the shelf items. The 24.5 exhausts don't make a BIG difference, as the exhaust isn't as critical as the intakes, but they will flow a little bit more air. I've seen Terry's work and it is good.
          Ray.

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            #6
            You are exactly right Ray, the 24.5 exhaust valves are special order and most dont know about them. Also correct on the flow , barley measurable over the 24.0 valve. Really not worth the trouble or expense to install them. I have them on my 1327 street/strip engine. You do some very good work yourself there my friend.
            Terry
            1980 Suzuki GS550E, 1981 Suzuki GS 1100EX all stock, 1983 Suzuki GS 1100EX modified, 1985 GS1150E, 1998 Honda Valkyrie Tourer, 1971 Kawasaki Mach lll 500 H1, 1973 Kawasaki Mach lV 750 H2.

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              #7
              Thanks guys. Good info. RAY GIVE ME A CALL ON PARTS

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                #8
                has anyone used these valves , opion on them
                thanks Bill
                eBay item number :
                ebay # 122331272866

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                  #9
                  sorry guys for bumping up an old thread, i intend to install 28.5mm intake and 24.5mm exhaust valves in my gs1100ex and was just wondering if i need to change the valve guides, springs and cams? or i can just use the existing stock parts that i have.

                  i'll be fitting in the wiseco 1166cc piston kit as well..

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                    #10
                    Originally posted by humms View Post
                    sorry guys for bumping up an old thread, i intend to install 28.5mm intake and 24.5mm exhaust valves in my gs1100ex and was just wondering if i need to change the valve guides, springs and cams? or i can just use the existing stock parts that i have.

                    i'll be fitting in the wiseco 1166cc piston kit as well..
                    No point whatsoever in fitting the big valves without going the whole hog with springs and cams. Guides may need to be shortened or replaced to suit whatever cams you use.

                    What's your proposed end use for the bike - road or race ?

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                      #11
                      Most of the rocker arm motors have worn guides. Ours sit 1mm lower in the head.
                      Speed Merchant
                      http://www.gszone.biz

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