MS440 -> 460 Conversion and Build

A big thank you goes out to Showrguy for providing me with this MS440. It came to me with a bad piston and no cylinder. Most everything else was there. I finally got it all apart tonight and everything cleaned up. I worked hard to get it painted tonight so that I could begin assembling it tomorrow.

The topend is going to be a new OEM Mahle 460 P&C. It will be ported and hopefully get a popup next week. My goal is to have this thing done by the GTG next Saturday. My 460 has always been my favorite saw. I can see this saw replacing it since it'll have the same power and less weight. We'll just have to see.







All the small parts, screws, and everything are cleaned up ready to go. The painted parts were primered and painted with the same paint I put on my 048. It should be dry enough to work with tomorrow evening. This is no show paint job as this will be a work saw.

I posted these pics in another thread, but these are the 460 P&C that will be massaged and put on this 440.

looks good. I thought the crankcase volume was different between the 440 and 460? Will it handle it?

I imagine it is. Shouldn't be much different than putting a 066 top end on a 064. Some have put 066BB on a 064 and 046BB on a 440.

Great job. looking forward to seeing it.

Are you going to post before and after pics of the ports?

Are you using the stock carb or one bigger?

looks good

ill take your old 046 off your hands

blsnelling said:

It came to me with a bad piston and no cylinder.

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I hate it when good pistons go bad...



I look forward to following the updates!

brad,
nice to see you get to this build..
those pictures really made it look cruddy, sorry bowt that..
she's cleaning up nicely though, will follow closely..

blsnelling said:

I imagine it is. Shouldn't be much different than putting a 066 top end on a 064. Some have put 066BB on a 064 and 046BB on a 440.

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Pease tell me that you are NOT going to just "imagine that it is", and port it without calculating what it is and how it is going to effect how you want to do the rest of your porting.

Sawdustmaker said:

Pease tell me that you are NOT going to just "imagine that it is", and port it without calculating what it is and how it is going to effect how you want to do the rest of your porting.

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:greenchainsaw:Yeah Brad you may have to use your router for this port job!

BlackCatBone said:

:greenchainsaw:Yeah Brad you may have to use your router for this port job!

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Ooooooohhhh...SNAP!

BlackCatBone said:

:greenchainsaw:Yeah Brad you may have to use your router for this port job!

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I plan on doing just that!

Hope that crappy OEM Mahle 460 cylinder is up to the task... you might wanna bolt up a 385 jug on that since there are no flaws whatsoever in any Husqvarna cylinders...

I don't know about you... but I am very concerned about the quality of those Stihl P&C's... :spam:

Gary

GASoline71 said:

Hope that crappy OEM Mahle 460 cylinder is up to the task... you might wanna bolt up a 385 jug on that since there are no flaws whatsoever in any Husqvarna cylinders...

I don't know about you... but I am very concerned about the quality of those Stihl P&C's... :spam:

Gary

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I just hope it makes it through the break-in run! The thing's liable to explode in my hands, lol.

blsnelling said:

I just hope it makes it through the break-in run! The thing's liable to explode in my hands, lol.

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HAHAHAH!!! Glad you'se gots a sense of humor Brad...

Gary

BlackCatBone said:

Yeah Brad you may have to use your router for this port job!

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I do NOT port other people's saws.... i realize that this saw is to be his, but i would think he will do this the same as he would do one for a client.

That said, if i am paying to have my saw ported, than i would expect it to have the transfer timing, intake timing, exhaust timing all tuned together with crankcase volume, max rpms, desplacment and many other factors for optimum gains. NOT simply left to how things turn out


From what brad said it sounded like the crankcase volume was not part of his concerns. I was asking if this was true. I can widen ports with my router if i want, :censored:.... but tuning all these things in my saw is way over my head at his point. That would be the only reason i would actually pay someone to moddify a saw for me.

Easy, Tiger.

Sawdustmaker said:

I do NOT port other people's saws.... i realize that this saw is to be his, but i would think he will do this the same as he would do one for a client.

That said, if i am paying to have my saw ported, than i would expect it to have the transfer timing, intake timing, exhaust timing all tuned together with crankcase volume, max rpms, desplacment and many other factors for optimum gains. NOT simply left to how things turn out


From what brad said it sounded like the crankcase volume was not part of his concerns. I was asking if this was true. I can widen ports with my router if i want, :censored:.... but tuning all these things in my saw is way over my head at his point. That would be the only reason i would actually pay someone to moddify a saw for me.

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Just having a bit of fun with you, calm down.

I was just funning you because it sounded a lot like you were questioning Brad when you admit yourself that you don't have it all down yet. That's funny to me. That is all.

landyboy said:

Easy, Tiger.

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I tried once and simply got poked at for my porting job so i tried to be more clear.

I am not trying to ssay brad does not tune a saw. i was asking why he seemed to brush off the effects of case volume.

Not that i know the exact effects, but I do not port for pay....