Husqvarna 357xp hybrid build

[Chainsaw Jim]

So this is about to happen.

This..

is getting saddled up to be ridden by one of these...


I don't know if it'll take me a couple days or a couple weeks, but I'll be working on it in between shop work.

 

[Onan18]

Power to weight outta be ridiculous!

Joe

 

[psuiewalsh]

Hold my beer!

 

[Jughead]

hmm.very interesting.oh and your a tease.

 

[David Young]

Cool

You pulling the stuffers out

 

[Chainsaw Jim]

I'll leave the stuffer cups on for initial test running. I'm trying to figure out which carb I want to go with. I have carb options from either the 2101, 394, 288, 372 oe and xt, ms440, 460 and 660.

 

[Stihlbro]

I'm curious how you gonna connect upper handle to side of cylinder?

 

[drf256]

I'm curious how you gonna connect upper handle to side of cylinder?

If you need an aluminum boss welded to the side of the jug, do the fab and send it my way Jimbo.

 

[lwhaples]

This will be interesting to watch and learn from.

 

[smokey7]

I am wondering what the stroke difference is if any and if the base bolt pattern is the same or close enough to make it work. Should be fun

 

[sunfish]

I am wondering what the stroke difference is if any and if the base bolt pattern is the same or close enough to make it work. Should be fun

Stroke and base bolt pattern are different enough to make this interesting & difficult.

Pretty sure it has been done before though.

 

[Chainsaw Jim]

The stroke is actually the same and the bolt pattern overlaps each hole enough to make it without a drastic modification. The transfers will not be a problem as the 272 cylinder overlaps the case openings with plenty of room to spare.
I'll find out when I bolt the cylinder down but so far the squish is even looking like it will end up perfect without milling.
To me this is no more difficult than a 440/460 hybrid build....so far.
I'll figure something out with the mounting boss for the handlebar.

 

[psuiewalsh]

You going to weld on or bolt an intake flange?

Sent from my C771 using Tapatalk 2

 

[Chainsaw Jim]

I'm not sure which carb I'm going to use yet, so I'm not sure what I'm going to need to do. I may hog it out and epoxy the outside of the port to a round shape to strap a rubber boot around it. Or just go with the original intake block which I think would be the better idea.

 

[Magic_Man]

I'm gonna be watching this.

 

[sunfish]

The stroke is actually the same and the bolt pattern overlaps each hole enough to make it without a drastic modification. The transfers will not be a problem as the 272 cylinder overlaps the case openings with plenty of room to spare.
I'll find out when I bolt the cylinder down but so far the squish is even looking like it will end up perfect without milling.
To me this is no more difficult than a 440/460 hybrid build....so far.
I'll figure something out with the mounting boss for the handlebar.

Well, this is cool. I just assumed the stroke was diff. Very interested now!

 

[Stihlbro]

I would consider the Tillotson hs from either same saw, or as long as it has the low idle adjustment. You have plenty of options and I think either could work. Certainly gonna take some work, and as I'm typing this I believe this cylinder swap has been done before, I just can't remember when but believe it was from the Nova Scotia area.

 

[Chainsaw Jim]

Well, this is cool. I just assumed the stroke was diff. Very interested now!

Also notice the 52mm ms460 piston in the pic. It doesn't bottom out on the case and laps the exhaust floor by a good 3/16th inch.

 

[Chainsaw Jim]

I would consider the Tillotson hs from either same saw, or as long as it has the low idle adjustment. You have plenty of options and I think either could work. Certainly gonna take some work, and as I'm typing this I believe this cylinder swap has been done before, I just can't remember when but believe it was from the Nova Scotia area.

I would really like to see what that saw was like. I would never imagine I'm the first to do this. And it sure does suck that I can't find another example to drool over. Lol

 

[Welder56]

I would consider the Tillotson hs from either same saw, or as long as it has the low idle adjustment. You have plenty of options and I think either could work. Certainly gonna take some work, and as I'm typing this I believe this cylinder swap has been done before, I just can't remember when but believe it was from the Nova Scotia area.

@Basher was this you??