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421cc Stroker project

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  • 421cc Stroker project

    Couple of pic's of my 421cc stroker engine which i picked up today.

    Cheers

    Oiler
    Attached Files
    Last edited by oiler; 28-04-2011, 08:02 PM. Reason: error

  • #2
    For the RD?

    What plans?
    What's been done to it?

    Less tease, more info!!!
    Commander Keen and Shady 7/8 are doing the Kiwi Shitbox rally 2016 as the Dropkick Dropbears- donate here to help us change cancer!


    Originally posted by Martin Luther King Jnr
    One has a moral responsibility to disobey unjust laws.
    . .

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    • #3
      Originally posted by oiler View Post
      Couple of pic's of my 421cc stroker engine which i picked up today.

      Cheers

      Oiler
      Good luck with it mate whatever bike you put it in to. I know it will be a winner and am looking forward to progress pic.

      Comment


      • #4
        Looks a lot like the tzr enging wigarus has...

        Sent from my mobile via the buggy tapatalk app.
        c o o l s t o r y b r o

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        • #5
          i miss my 421cc power...!!!

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          • #6
            Nice one

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            • #7
              hmmm... what are you putting it into....
              1984 rz 350 stroker
              1984 rz 500 original
              2004 mv agusta f4 1000
              1994 mitsubishi magna wagon

              Comment


              • #8
                C'mon Oiler, your teasing us now.
                More Info required.
                Wounds Heal, Bones Mend, Chicks Dig Scars and Glory Lasts Forever...

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                • #9
                  The Athena kit should be good for 70+HP with mountains of torque. Great choice

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                  • #10
                    you'll feel like you can fly over mountains with that torque......weeee
                    twobangermad
                    Inactive Member
                    Last edited by twobangermad; 16-05-2011, 07:38 PM.

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                    • #11
                      421cc stroker progress pic's

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                      • #12
                        421cc stroker progess pic''s 2

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                        The easy bit - out with the stocky and in with the horses

                        Stage #1: New motor - F2 pipes & standard carburation (the run in)

                        Stage #2: New front & back end, new pipes & carbs based on flow testing.

                        Stage #3: New paint & cosmetic's

                        Will post more as i go along with full motor spec

                        Cheers

                        BW

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                        • #13


                          i notice there is no spacer plate, im curious to know how the +2mm has been allowed for? machined domes?

                          ive been sitting on my athena top end for ages, cos i was stupid enough to buy a long rod stroker crank which requires new pistons and domes to make work. its going to be cheaper for me to toss that crank in the bin and get either a standard crank or +4mm with standard rods to finish the build.
                          Originally posted by Bendito
                          If we get to a stop and we are missing a dozen bikes and you are last, it was your fault. Don't be that guy. No one likes that guy.

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                          • #14
                            Good question Gozer... i changed pistons to a set of wosner which have a lower pin placement which negated the need for the spacer plate.

                            I also had a set of new domes made by TSS to match it all together.... i was held up for a while on this until Steve ran over the numbers and came up with a simple solution.

                            Cheers

                            BW

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                            • #15
                              I reckon painted black you would need a keen eye to see those cylinders were not stock LC. Of course if you would have to get close to it to see first. I trust you have budgeted for a suspension and brake upgrade?

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