Powroll cb350 67mm Pistons
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Powroll cb350 67mm Pistons

This is a discussion on Powroll cb350 67mm Pistons within the General forums, part of the Caferacer.net Forums category; Found some of these in an engine I'm tearing down and building up for a shop 'show' bike. Was going to use the boretech 65.5's ...

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  1. #1
    Senior Member mlinder's Avatar
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    Powroll cb350 67mm Pistons

    Found some of these in an engine I'm tearing down and building up for a shop 'show' bike.

    Was going to use the boretech 65.5's stock CR pistons I have.

    Anyone have experience with the powroll?

    Can't tell if they are high compression or just bigger.

    Will take pics tomorrow and post em up.

    They feel really heavy, but will weigh them.
    http://quiterandom.hubpages.com/hub/...sic-motorcycle How to buy a used bike
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    It's like a Machiavellian 4-volume trilogy based on Hamlet senza misura with an ego-maniacal downs syndrome kid reading from a Rube Goldeberg-esque kindle.

  2. #2
    Senior Member TSwami's Avatar
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    I don't know how they are but let me know, I'm looking at one of their kits for my XL350. They apparently have been doing this for a long time and were did lot of off road hop up stuff. They may have been doing more I just have seen alot in researching for my XL350
    Faster, faster, faster, until the thrill of speed overcomes the fear of death. ~Hunter Thompson

  3. #3
    Senior Member crazypj's Avatar
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    I wasn't impressed with the CB350 Powerol pistons.
    Massive pin offset,(easily visible)
    I heard if you fit them backwards and re-machine valve pockets they work 'better'?
    as you said, they are HEAVY
    I dabble in rocket science, when I\'m not picking my nose
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  5. #4
    Senior Member mlinder's Avatar
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    About 200 grams naked.

    I've decided on the boretech setup.
    http://quiterandom.hubpages.com/hub/...sic-motorcycle How to buy a used bike
    http://quiterandom.hubpages.com/hub/...the-Cafe-Racer How to build a cafe racer

    It's like a Machiavellian 4-volume trilogy based on Hamlet senza misura with an ego-maniacal downs syndrome kid reading from a Rube Goldeberg-esque kindle.

  6. #5
    Senior Member Emit R Detsaw's Avatar
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    Little outfit out of Bend, OR (but I assume you already knew that). Stuff worked pretty well in the seventies, don't know much about the company today. Perhaps they have been selling the same old stuff for forty years and other outfits have continued to research and improve, hence, the heavier pistons?
    I believe we have run out of trolls.

  7. #6
    Senior Member mlinder's Avatar
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    These are pretty old. They haven't made 350 pistons for years.
    http://quiterandom.hubpages.com/hub/...sic-motorcycle How to buy a used bike
    http://quiterandom.hubpages.com/hub/...the-Cafe-Racer How to build a cafe racer

    It's like a Machiavellian 4-volume trilogy based on Hamlet senza misura with an ego-maniacal downs syndrome kid reading from a Rube Goldeberg-esque kindle.

  8. #7
    Senior Member TSwami's Avatar
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    Still making XL350 pistons http://www.powroll.com/P_HONDA_VINTAGE_XL350.htm

    Everything I have read on Thumpertalk and the XL boards says they are really good at what they do but still no personal experience
    Faster, faster, faster, until the thrill of speed overcomes the fear of death. ~Hunter Thompson

  9. #8
    Senior Member mlinder's Avatar
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    Yes, but xl350 shares nothing in common with the cb350, other than being a honda.
    http://quiterandom.hubpages.com/hub/...sic-motorcycle How to buy a used bike
    http://quiterandom.hubpages.com/hub/...the-Cafe-Racer How to build a cafe racer

    It's like a Machiavellian 4-volume trilogy based on Hamlet senza misura with an ego-maniacal downs syndrome kid reading from a Rube Goldeberg-esque kindle.

  10. #9
    Senior Member TSwami's Avatar
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    Thought you were talking to me.

    What size are the Powroll ones you have?
    Faster, faster, faster, until the thrill of speed overcomes the fear of death. ~Hunter Thompson

  11. #10
    Senior Member mlinder's Avatar
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    67mm.
    http://quiterandom.hubpages.com/hub/...sic-motorcycle How to buy a used bike
    http://quiterandom.hubpages.com/hub/...the-Cafe-Racer How to build a cafe racer

    It's like a Machiavellian 4-volume trilogy based on Hamlet senza misura with an ego-maniacal downs syndrome kid reading from a Rube Goldeberg-esque kindle.

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