Project Stumpbroke Husky 345 sleeper

This will be a fun project. Take an unassuming plastic cased homeowner saw & put a hot rod 346xp cyl on it. I know it's been done before, but I figured I'd post it anywhoo.

I'm starting out with a 2002 345 that has seen your average usage. Not completely worn out, but could use a freshening up. Not sure how I talked the customer into letting me go this far with it, but I won't argue. He was fine with an aftermarket top end so I found a kit on ebay that came with the OEM upgraded boot clamp, OEM full gasket set, OEM pin bearing, OEM carb mount, and OEM decomp valve. I upgraded the boot & mount to the 357xp since I'll be useing a 357 carb. I had the used 350 cyl base already here.


I've got all the parts cleaned & ready to start test fitting the cyl to make sure it fits the case.

Go for it.
I will be watching all the way, along with many others.
You do excellent with the pictures.

First I installed the crank & cyl base.


The base is secured via bolts that go through the underside of the case.


It's hard to tell but the cyl is hitting the clutch side of the case & won't sit flat.


I relieved one of the case ribs to allow for it to set flat. I may remove more once I machine the cyl.


It all bolts together just like a 350 would now. I'm ready to take the timing # of the aftermarket cyl.

R DeLawter said:

Go for it.
I will be watching all the way, along with many others.
You do excellent with the pictures.

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Thanks, not bad for a less than $100.00 kodak easy share camera & my shaky hands. Sometimes I shake like a dog poopin a peach seed.:msp_scared:

Stumpy i got a 345 out in the shop waiting on a handle.Thank's forposting this thread that will make a hot little #

I marked the piston at the bottom of the exhaust port with the piston @TDC so I can see how much room I have to drop the jug. Looks like I won't have to worry about taking it to far & free porting.


The cyl doesn't look to to bad for an after market. Honestly it's better than most that I've dealt with.





I went ahead & measured the bore & piston before I done any machining. It all came out real nice except for the ring gap which was a few thousandths over looser than what I would like, but still in the good range. I ended up with .013" end gap, and .0036" skirt clearance.

rattler362 said:

Stumpy i got a 345 out in the shop waiting on a handle.Thank's forposting this thread that will make a hot little #

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Which handle you need??

Stumpys Customs said:

...
It's hard to tell but the cyl is hitting the clutch side of the case & won't sit flat.

I relieved one of the case ribs to allow for it to set flat. I may remove more once I machine the cyl.

.....

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No surprice there!

another great thread

SawTroll said:

No surprice there!

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Not really. It's all been done before prolly by better people, but it's what I'm playin with right now:msp_biggrin:

Maybee if I remove enough material there the sideways balance would be better.:msp_w00t:

Stumpys Customs said:

Not really. It's all been done before prolly by better people, but it's what I'm playin with right now:msp_biggrin:

Maybee if I remove enough material there the sideways balance would be better.:msp_w00t:

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And porting really does remove overall weight from a saw....

Looks like this will be a fun one.

i was thinking about doing the same thing with my 340 huskie,, i just have to see what will bolt up to it,, be nice if i can take it to a 346:msp_biggrin::msp_biggrin:

Its going to be a pocket rocket :msp_w00t:

...opcorn:

DanW63 said:

And porting really does remove overall weight from a saw....

Looks like this will be a fun one.

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I've recorded the before weight of all the parts that will be worked on. Then I'll weigh them after for a total weight loss. That oughta peak SIR. Trolls interest.:msp_wink:

o8f150 said:

i was thinking about doing the same thing with my 340 huskie,, i just have to see what will bolt up to it,, be nice if i can take it to a 346:msp_biggrin::msp_biggrin:

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340 & 345 are the same case. If you didn't know already. :msp_wink:

Rudolf73 said:

Its going to be a pocket rocket :msp_w00t:

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I hope so!!!!:msp_unsure:

Stumpys Customs said:

I hope so!!!!:msp_unsure:

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It's a quad port jug...
You know it'll run...
Hmmmm.... What could one do with a plastic case?...
:monkey:

Hedgerow said:

It's a quad port jug...
You know it'll run...
Hmmmm.... What could one do with a plastic case?...
:monkey:

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Not so sure about the case, I think I know what yer getting at. Te thing that will be nice with this set up VS the mag case is I'll be able to work on the cyl base with it off of the saw to get it matched to the lower transfers allot easier. More on that later.....................

Cool project!!!

I took a close look at the piston & noticed it had some markings cast into it. They looks like they were trying to copy the originals or something. I can see it says IND BRAS on the right side in this pic.


On the other side it has what looks to be a miss shaped husky logo with a B in the middle instead of a H.


Other than that it looks real close to an OEM. I have a used OEM for comparison.






The AM piston is already 5 grams lighter than the OEM. The pins & rings are the same weight.

I've also e-mailed the guy I got it from to see if he knows where these are manufactured.