Looking to build something and need option

blasters/banshees

New Member
Jan 11, 2009
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Hey whatsup so I have a 2008 yfz 450 frame laying around and I though of a cool idea of putting a yz250 engine in it now I know I would need to mod motor mounts and the exhaust possibly but I'm really worried about it fitting into the swingarm and all that anyone with experience in swaps please help me out
 
Had quite a few swaps with yz250 into blaster on here, never into a 450. Find a measurement from a 250 and the swingarm and see if it is doable. Or if you can cut it to fit.
 
lemme do a lil digging, i know of a guy who did the swap, one thing that was an issue to him is the back mount, the newer years had mount that were too skinny to mount into the yfz swingarm, but there are older watercooled yz engines that have the fatter mount that almost fits perfect into the yfz.... lemme find the thread on e2s
 
Anyone else have advice that yz250 swap in that other thread is something close to what I would do could I still get big bores and all for older yz engines?
 
Okay cool so what year yz engine would you guys recommend newest as possible, because I'm gonna probley send this engine to Kennedy and get it ported and polished and a few other odds and ends......I'm kinda looking for a 250r type quad
 
Okay cool so what year yz engine would you guys recommend newest as possible, because I'm gonna probley send this engine to Kennedy and get it ported and polished and a few other odds and ends......I'm kinda looking for a 250r type quad

Kennedy? :eek: If that floats your boat, there was a lot of trouble with kennedy racing.
I'd say as long as there is a plethora of parts available, any engine will do just fine!