441 cylinder pictures.

[CaseyForrest]

OK, here they are. I got these from Dave.

Dave told me he did get some noticeable gains out of it. He said in a 14" piece of Red Pine with an 18" bar he couldnt stall the chain. Ill have to see what it will do in some MI hardwood.

 

[StihlBoy440]

is that a quad transfer port set-up I see on the 4 corners. I have not seen one at all, our dealers havent even got one yet. Its nice to finally see one being modded!

 

[Four Paws]

Well, there you go fellas! Those are some good pictures if you are looking into woods porting a 441. Looks like those lower transfers were opened up quite a bit, and the skirt was radiused to promote more/less restricted flow to the transfers. Nice big exhaust port too! Thanks for sharing - this will definitely help some guys!

 

[computeruser]

Dave told me he did get some noticeable gains out of it. He said in a 14" piece of Red Pine with an 18" bar he couldnt stall the chain. Ill have to see what it will do in some MI hardwood.

I still have some shagbark you can test it out on that needs to be ripped into pieces, since my mauls keep bouncing off of it...

 

[RiverRat2]

I still have some shagbark you can test it out on that needs to be ripped into pieces, since my mauls keep bouncing off of it...

Hey C-user you didnt think it would soften up sitten there did ya????

LOL Mornin Dave

 

[dneiger]

441

The 441 is a very nice saw stock I found there are some limitations on what you can do as far as porting . It pulled quite well in stock form in the same piece of Red pine [ this was 14" dia frozen very hard, I could just get a pickaroon to stick ]. after porting it pulled much stronger. If you have any questions on the limitations it has to do with the exhaust port stock width and the piston design on the intake side. We will know more after Casey runs it.
Dave

 

[CaseyForrest]

Welp, just got home and pulled it out of the box.

Pulled it over a few times and can tell it has a tad more compression. I may need to put the decomp back in!!

Ill get it run some this weekend and report back. Probably on some of that SBH I gave to Brandon. Keep in mind my 441 only had 2 tanks through it before Dave got it, itll only get better!

 

[Luke]

Dave,

What's up with the stacked transfers. Is the top one air only?

Thanks,

Luke

 

[441_Stihl]

cool Casey keep us informed might be a nice mod for me if you like it