Can I turn a 2016 KTM 250 into a 350? If so, what do I need to do? Thx

blacjackmx
Edited Date/Time 5/14/2020 3:15am
Can I turn a 2016 KTM 250 into a 350? If so, what do I need to do? Thx
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c0ncEpT
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c0ncEpT 5/13/2020 11:08am
5/13/2020 11:08am
Yes you can.

You need an entire take out 350 engine to swap into it.
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barrs211
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barrs211 5/13/2020 11:19am
5/13/2020 11:19am
blacjackmx wrote:
Can I turn a 2016 KTM 250 into a 350? If so, what do I need to do? Thx
Best thing to do would be to cross reference part numbers online.
TSCHAM101
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TSCHAM101 5/13/2020 11:22am
5/13/2020 11:22am
i thought the only difference was the bigger piston and head work from the 250 to the 350?

rob162
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rob162 5/13/2020 11:41am
5/13/2020 11:41am
What are you looking for out of the bike?
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DynoDan22
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DynoDan22 5/13/2020 12:04pm
5/13/2020 12:04pm
350 has larger stroke as well as larger bore.
2F4A
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2F4A 5/13/2020 12:41pm
5/13/2020 12:41pm
What are your plans exactly? Did you obtain a complete engine and want to swap that or do you want to build a 350 engine out of a 250 engine?
blacjackmx 5/13/2020 1:34pm
5/13/2020 1:34pm Edited Date/Time 5/13/2020 1:35pm
rob162 wrote:
What are you looking for out of the bike?
I ride mx and I am looking to purchase a 2016 KTM 250sxf with a blown engine. I was thinking about swapping out internals and making it a 350 but now I have found a 350 engine that I think I can just drop into that frame. Any truth to the 250 and 350 running the same frame? I think they both have the same throttle body.
mx216
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mx216 5/13/2020 2:33pm
5/13/2020 2:33pm
rob162 wrote:
What are you looking for out of the bike?
blacjackmx wrote:
I ride mx and I am looking to purchase a 2016 KTM 250sxf with a blown engine. I was thinking about swapping out internals and making...
I ride mx and I am looking to purchase a 2016 KTM 250sxf with a blown engine. I was thinking about swapping out internals and making it a 350 but now I have found a 350 engine that I think I can just drop into that frame. Any truth to the 250 and 350 running the same frame? I think they both have the same throttle body.
Same frame, different exhaust and ECU mapping. Everything else is bolt on.
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yz133rider
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yz133rider 5/13/2020 6:56pm
5/13/2020 6:56pm
Just buy a clean 350. Save yourself a ton of time, money, and headaches. And actually have a bike to ride.
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Bruce372
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Bruce372 5/13/2020 7:09pm
5/13/2020 7:09pm
yz133rider wrote:
Just buy a clean 350. Save yourself a ton of time, money, and headaches. And actually have a bike to ride.
Yeah, that sounds like a nightmare trying to figure that out and probably spend more in the long run
Phillip_Lamb
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Phillip_Lamb 5/13/2020 8:53pm
5/13/2020 8:53pm
or buy a big bore kit for the 250
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Crush
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Crush 5/13/2020 9:16pm
5/13/2020 9:16pm
Crikey – You might be able too but I'd say it's way more trouble than it's worth and not an inexpensive task.
CarlinoJoeVideo
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CarlinoJoeVideo 5/13/2020 9:20pm
5/13/2020 9:20pm
You just need engine and ECU mapped for it.


Probably be all in just under $3k unless you can find a better deal on complete engine.
kb228
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kb228 5/14/2020 3:15am
5/14/2020 3:15am
CarlinoJoeVideo wrote:
You just need engine and ECU mapped for it. [img]https://p.vitalmx.com/photos/forums/2020/05/13/427075/s1200_2D861701_9B86_49CC_9B4A_0F9D2B2D005C.jpg[/img] Probably be all in just under $3k unless you can find a better deal on complete...
You just need engine and ECU mapped for it.


Probably be all in just under $3k unless you can find a better deal on complete engine.
Better deal than just buying one. A roller is worth $1000 at the most

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