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Heavy Duty Cylinder Studs

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    #1

    Heavy Duty Cylinder Studs

    I was planning on purchasing some H.D. cylinder studs since I have bored my stock block as far as it can go (3mm o/s ). I was attempting to possibly regain some strength in that area since the bores are thinner now by installing the larger studs. Does this make sense or not and is it worth the trouble? I have also heard that since the heavy duty studs are a thicker diameter that they will restrict the oil going up to the head. Therefore I would need to install an external top end oiling system to overcome the lack of oil passing up through the stud passages to the head. Just curious if any one has seen or heard of this situation.
    sigpic 82 gs1100ez 1168 Wiseco,Web .348 Cams,Falicon Sprockets,Star Racing Ported Head,1mm o/s Stainless Valves,APE Springs,Bronze Guides,etc.APE Billet Tensioner,36CV Carbs,Stage 3 Dynojet,Plenum w/K&N filter,Trued,Welded,Balanced,Crank w/Katana rods & Billet left end, FBG backcut trans, VHR HD Clutch basket,APE nut,VHR High volume oil pump gears,1150 Oil cooler,V&H Megaphone header w/Competition baffle,Dyna S,Coils,Wires,etc.Other misc.mods.
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    #2
    Originally posted by gs11ezrydr View Post
    I was planning on purchasing some H.D. cylinder studs since I have bored my stock block as far as it can go (3mm o/s ). I was attempting to possibly regain some strength in that area since the bores are thinner now by installing the larger studs. Does this make sense or not and is it worth the trouble? I have also heard that since the heavy duty studs are a thicker diameter that they will restrict the oil going up to the head. Therefore I would need to install an external top end oiling system to overcome the lack of oil passing up through the stud passages to the head. Just curious if any one has seen or heard of this situation.
    You arent going to strengthen the block with HD studs. You will increase the clamping force on the gaskets and keep you from blowing head gaskets.
    I would recommend a TEO with HD studs for sure and doubly so for any performance build.

    Comment

      #3
      First thing we have to ask, though, is WHAT BIKE ARE YOU TALKING ABOUT???

      Our only clue is your username, but that does not guarantee anything.

      For heavy-duty go-fast parts, one of our racers would be your best bet. Try contacting RapidRay, Trippivot or Blowerbike.

      .
      sigpic
      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
      Family Portrait
      Siblings and Spouses
      Mom's first ride
      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.)

      Comment

        #4
        Run some high volume oil pump gears with the larger diameter block studs. It may be a good thing to run an overhead oiler. I had to with the APE studs since I was eating exhaust cams. I did a test with the cover off and spark plugs out and hit the starter. The intake cams were swimming in oil almost right away and the exhaust took a while and really only got a sheen of oil which prompted me to install an exhaust overhead cam oiler.
        1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
        1985 GS1150ES stock with 85 Red E bodywork.

        Comment

          #5
          Originally posted by Steve View Post
          First thing we have to ask, though, is WHAT BIKE ARE YOU TALKING ABOUT???

          Our only clue is your username, but that does not guarantee anything.

          For heavy-duty go-fast parts, one of our racers would be your best bet. Try contacting RapidRay, Trippivot or Blowerbike.

          .
          Sorry there about a certain model or what type bike. But since all of the gs motors supply there oil up to the head past the cylinder studs I think. I was just implying about all of the gs motors in general that happen to supply oil in that way. But specifically a 1982 gs1100ez again sorry there.
          sigpic 82 gs1100ez 1168 Wiseco,Web .348 Cams,Falicon Sprockets,Star Racing Ported Head,1mm o/s Stainless Valves,APE Springs,Bronze Guides,etc.APE Billet Tensioner,36CV Carbs,Stage 3 Dynojet,Plenum w/K&N filter,Trued,Welded,Balanced,Crank w/Katana rods & Billet left end, FBG backcut trans, VHR HD Clutch basket,APE nut,VHR High volume oil pump gears,1150 Oil cooler,V&H Megaphone header w/Competition baffle,Dyna S,Coils,Wires,etc.Other misc.mods.

          Comment

            #6
            Originally posted by chef1366 View Post
            Run some high volume oil pump gears with the larger diameter block studs. It may be a good thing to run an overhead oiler. I had to with the APE studs since I was eating exhaust cams. I did a test with the cover off and spark plugs out and hit the starter. The intake cams were swimming in oil almost right away and the exhaust took a while and really only got a sheen of oil which prompted me to install an exhaust overhead cam oiler.
            When you say an (Exhaust) overhead cam oiler are you pertaining to a external top end oiling system that supplies oil to both of the intake and exhaust rocker arm shafts or is this something different that only supplies more oil to the just the exhaust side of the rocker arms themselves. Sorry just a little confused there. I already have the high volume gears and an 1150 oil cooler and I don't think I need the larger dia. studs as of now and was just curious as if they would restrict the oil going to the head if I was to install them. Also I was trying to keep the bike as stock appearing as I can without installing a top end oiling system and do any and all modifications internally and unnoticed to the motor externally if that makes sense. A (sleeper)
            Last edited by gs11ezrydr; 07-28-2013, 01:04 AM.
            sigpic 82 gs1100ez 1168 Wiseco,Web .348 Cams,Falicon Sprockets,Star Racing Ported Head,1mm o/s Stainless Valves,APE Springs,Bronze Guides,etc.APE Billet Tensioner,36CV Carbs,Stage 3 Dynojet,Plenum w/K&N filter,Trued,Welded,Balanced,Crank w/Katana rods & Billet left end, FBG backcut trans, VHR HD Clutch basket,APE nut,VHR High volume oil pump gears,1150 Oil cooler,V&H Megaphone header w/Competition baffle,Dyna S,Coils,Wires,etc.Other misc.mods.

            Comment

              #7
              Originally posted by gs11ezrydr View Post
              When you say an (Exhaust) overhead cam oiler are you pertaining to a external top end oiling system that supplies oil to both of the intake and exhaust rocker arm shafts or is this something different that only supplies more oil to the just the exhaust side of the rocker arms themselves. Sorry just a little confused there. I already have the high volume gears and an 1150 oil cooler and I don't think I need the larger dia. studs as of now and was just curious as if they would restrict the oil going to the head if I was to install them. Also I was trying to keep the bike as stock appearing as I can without installing a top end oiling system and do any and all modifications internally and unnoticed to the motor externally if that makes sense. A (sleeper)
              These oil systems always are a little slow with the oil to the exhaust cam. I think the larger studs would actually increase the oil pressure since these are more about volume then pressure.
              I run an oiler to the exhaust cam only.
              1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
              1985 GS1150ES stock with 85 Red E bodywork.

              Comment

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