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  1. #1
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    Default Total Motor/Trans Rebuild on a Bone Stock 1974 XLCH

    This scooter been sitting (In many boxes) in my shop for a few years, I did a trade for it with thoughts of building back to it's glory days ....

    Reason it was took apart, the owner was going to clean it up and paint all parts back to the Oem look...



    The PO has three other bikes and the trade was for labor on one of em.

    Being I have two that are keepers, this CH was just going to be put together nicely and flipped....
    I bought up a few new parts for it and added em to the box count but didn't jump into the build...
    Told a Buddy that I would sell it as is, he offered to buy it, we agreed on a price and it's still sitting in the same spot that it been sitting...

    He wants me to go though the motor to make sure all is well ... I'm pretty sure he will want some ponies out of it, so we may be doing a stroker .. ???

    Also wants me to assemble the rest of the scoot... This part of the build will go back as a flat-track look, kinda a shame not to build it back stock cause all the parts are there to do so...



    May turn out to be a interesting build.. ???
    Last edited by Dragstews; 09-26-2019 at 9:49 AM.

  2. #2
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    Going to get this on the build table soon and do a tear down .... Have NO idea what I'll find lurking inside ... Hoping to find all kinds of performance goodies ... Like cams, stroker and XLR valves ..... 1974 was a long time ago ...



    Been thinking about putting this hair dryer on it .. ??
    Last edited by Dragstews; 09-26-2019 at 11:39 AM.

  3. #3
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    Huffers are sexy and would make for an interesting build thread.

    Does customer have the coin for total gut rehab to take the ponies? A bored, stroked and blown IH would be interesting.

  4. #4
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    It certainly will get deep into the pockets ....

    Just a common Ironhead fresh-up will cost a bunch of coin ...

    Start throwing plating and over the above motor goodies and before you know it ya got thousands into it...
    These types of builds will snow-ball really fast ...

  5. #5
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    Would love to see this happen
    An Ironhead turbo project passed though my hands a few years back. Kinda regret selling it.
    Only work I had put into the pile of parts was to flow and dual plug the heads.
    Still have the stroker flywheels if you're interested

  6. #6
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    What stroke are they...?
    If they are 4-5/8" or better, yeah, lets talk ...

  7. #7
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    Will be starting the tear down today...

    Got the game plan nailed down, going 4-5/8" stroke and 3-7/16" bore ....
    That will up the cubes 25 more than it came from the Mo-Co with ..
    From 61 inch to 86 inch,

    Dug it out and got it as far as seeing the light of day ...



    Been on the horn nailing down some of the speed parts that will be going into the critter ...
    Last edited by Dragstews; 11-17-2019 at 4:46 PM.

  8. #8
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    Since it's getting cams an early cover with a magneto would offer a sexy way to ignite the mix.

  9. #9
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    Not sure what he has in mind for the ign. ... ??

    I'm going to suggest one of these, being this model has the tach drive ..



    Just got to wade in the water some ....
    .../// https://youtu.be/kyCPBcCG39c \\\...
    Last edited by Dragstews; 11-17-2019 at 2:42 PM.

  10. #10
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    Click image for larger version. 

Name:	Capture.JPG 
Views:	3 
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ID:	98455

    Something tells that this rip-roaring 86 inch monster Snortster will not be running a front brake .. !!

  11. #11
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    Some buy horsepower to use it, some for the stats. This also explains the huge engines and expensive Baker six speeds in show bikes which can't corner.

    At least the compression braking should be stout!

  12. #12
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    Yeah ..... I think a front brake would be a good idea .. !!

  13. #13
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    Nasty little piglet ...



    Ran it though the Jet Washer ...




    These cases are in dang good condition for what we're fixing to do to them ...

    Last edited by Dragstews; 11-19-2019 at 6:38 PM.

  14. #14
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    Quote Originally Posted by Dragstews View Post
    These cases are in dang good condition for what we're fixing to do to them ...

    What a shame............

  15. #15
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    Agricultural farming equipment is SO interesting!

    (The first pix is such a clean bike, so rare to see them stock-ish & unmolested!) I used to have a 1960 with the original pogo solo seat, I sure regret that one going away. I dont miss the generator issues and difficulty starting or the parts falling off,,, But I still miss that bike.

  16. #16
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    Quote Originally Posted by Tattooo View Post
    What a shame............
    No-No Tatt ....
    That's a good thing, the L73 to 76 Ironhead cases are well made and suited for doing "Hot-Rod" work to...
    Tranny case is beefy, that's a huge plus over the earlier cases..

    Got a bit of tig welding to do to build up the deck for the larger bore ...
    Bunch of headwork is on the menu, gotta plug and move the head bolt holes outboard, again for that super large bore... Also raconteur the chambers to match bore....

    It's all good .... Not a shame by no means, my over opinionated friend ...

    Last edited by Dragstews; 11-19-2019 at 7:10 PM.

  17. #17
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    Better to use good parts for a superior performance engine then spending more time and money on junk needing rework. Nothing goes to waste anyway, especially if it's in Dragstews stash.

    A (properly done) hot rod vs. a stock turd is never a shame. "I love the way a stock Ironhead runs and rides" is a mighty rare statement. The factory should have put XR-1000 style heads and XR-750 style aluminum jugs on the damn things around 1971 then done the completely superior Evo Sporties years earlier. If they weren't born with Harley stickers they'd be as popular as Allstate twingles and they helped nearly kill the company. I used to flip them until Evos nuked that market.

    OTOH they're fine for show bikes and hot rods because they look cool and increased displacement makes respectable HP.

  18. #18
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    How bout a 86 inch Blown Ironhead ...



    (Now that just might be a shame ?)

  19. #19
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    Best to build it in order to scientifically test for shame or absence thereof.

    I fucking love science!

  20. #20
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    Quote Originally Posted by Dragstews View Post
    Got a bit of tig welding to do to build up the deck for the larger bore ...
    Like I said above.........................

    But I'm sure it will be done right in the end..............

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