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February 8th, 2018, 09:24 AM   #21
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Joined: Apr 2014
From: Chilliwack, BC, Canada

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I Ride: 2014 FE350, Beautiful Blonde
Looking at this makes me confused. The whole point of the Husa is because it is a Husa correct? If you want a KTM engine or swap it with a KTM engine than why not just purchase a KTM and save the trouble. If you want the big grunt and power buy a 650 lol, Its like buying a Dodge and putting in a Ford engine?????????

Sorry I just don't get the point
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February 8th, 2018, 01:38 PM   #22
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From: SO.NV.

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Or just buy a blue KTM (13-14 Husaberg) or white KTM (current Husqvarna).
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February 8th, 2018, 04:20 PM   #23
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Joined: Feb 2018
From: Roy, WA

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I Ride: 08' FE 450 Husaberg
I want the bike I bought.
I also want it to be a torque monster.
So with that said, I'll be bolting in a 650 Husaberg engine
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February 8th, 2018, 05:50 PM   #24
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Joined: Feb 2018
From: Roy, WA

Posts: 97
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I Ride: 08' FE 450 Husaberg
Taffy,
I did purchase this bike last night & couldnt be happier
The monster torque thing will never change w/me though, so change is needed.
I knew this going in and am not afraid ! lol !.
Question for you sir,
Instead of replacing my entire 450 engine that has been debored to a 388. Can
I use the 550 crank etc. , open the cases & run a 650 liner with the 450 head ? What cc would I jave then ?
How bout same thing with a 650 crank beings the cases have to split anyway ?
Just seems cost effective to get the cubes out of what I have instead of replace entirely
due to them being rare & spendy complete is all. I can cnc the cases.

Thanks in advance---Proflow
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February 8th, 2018, 11:23 PM   #25
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Joined: Nov 2001
From: Ely, England

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I Ride: Husaberg FE501e 2003
Originally Posted by Taffy View Post
you can't do anything with the 450. all the Husaberg engines have to stay at the max CC which is what they were made with. you could stroke it but you'd have to make a packer and nobody has done that yet. Packer, liner, crank assembly with the longer rod, camchain. black box.

Taffy
Hi

as said, there's no easy answer. the best thing you can do is get new 650 cases and then start looking for a crank with rod, piston and liner. then all you do is swop ecverything over, fit a new longer cam chain and cam chain tensioner blade and then off you go!

you could change the balancer but you'd be OK with yours.

you can buy a used long stroke crank from 2001-2004 and make a 644 or you can buy a 2005-2008 crank which is shorter stroke, stronger and makes 628cc. I like the old 644cc. as long as you didn't race it, it will take any thrashing you give it.

the head you have is the one used for the 450, 550 and the 650 and is under-valved by 650 but it is a good basis.

why don't you just ride and enjoy this bike while you look for cases and crank? in all honesty, the stuff inside (that wasn't mentioned above) is cheap enough used; gearbox, clutch, selector etc.

Taffy
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February 9th, 2018, 05:55 AM   #26
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From: Simi Valley Ca.

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I Ride: 2006 FS650e, 2007 FE550e, 2016 Ktm500Exc
Also, it's always helpful to know from the beginning that the difference between the 3 motors are not in the bore but in the stroke. And look at the pictures. The 450 motor being much shorter than the 650.
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February 9th, 2018, 06:08 AM   #27
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Joined: Feb 2018
From: Roy, WA

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I Ride: 08' FE 450 Husaberg
10-4, thanks for the info guys

I do plan on riding this bike the way it is and enjoying it for sure.
I will start collecting needed internals & when ready, do the overhaul
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February 9th, 2018, 06:45 PM   #28
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From: Burlington

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I Ride: '07Exc 525 & '07 FS 550.Just sold ' 08 Ktm 450 sxf.
There are many possibilities. One which nobody done yet is to put in larger bore in. Like 102mm or something. You would have more load on piston skirt so offcenter wrist pin piston and microblue treatment would be recommended. This is custom treatment so probably Travis or similar expert would be helpful. Then you could open up breathing, larger valves bore carb and porting head job. This would give you like two power bumps with original cases. Probably could get close to 500cc with good breathing and proper set up would be sweet. From 450 to 550 to 650 stroke is longer. Visually each is taller about 1cmm. Custom stuff is expensive. If u can get 650 cases for reasonably good price then meybe its best bang for your buck going this way. All depends how much power you wanna buy. I'm saving for a bulletproof 700cc set up to last me 1000 hours. I think it's doable.
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February 9th, 2018, 08:04 PM   #29
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Joined: Feb 2018
From: Roy, WA

Posts: 97
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I Ride: 08' FE 450 Husaberg
I found a set of 01'cases (fx650e) for $280.00 US. Matched set.
Havnt pulled the trigger on them yet though as I still need a crank , liner etc...
Is that a I best buy them now price ?

I take it the e on the end of the fx650e is for electric start, does that mean I lose my kicker or no ?
Also do these cases support the hydro clutch ?
Are these cases what Im looking for ?

Thanks in advance---Proflow

Last edited by proflow; February 9th, 2018 at 08:54 PM.
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February 9th, 2018, 11:19 PM   #30
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Joined: Nov 2001
From: Ely, England

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I Ride: Husaberg FE501e 2003
you must buy only 2004-2008 cases. they changed the ignition in 2004 and the two types aren't compatable.

when looking, look for the ignition area. if this is round and three screws it is a no go. If I saw though a 2001-2003 crank, rod, piston, I wouldn't say no, i reckon it's good kit. not very tunable so if you want to go stupid then stick to the 2005-2008 628 crank.

the liner was the same all the way from 2001-2008.

Taffy
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