660r motor on 450 frame and all - Yamaha Raptor Forum

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Old 02-24-2011, 02:36 AM   #1 (permalink)
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Default 660r motor on 450 frame and all

I have a 01 660R 4wheeler that runs great, but the body chassis and all is pretty well shot from hard landings. I also have a YFZ 450 that has a blown motor but the rest is mint. Is it possible to put the 660R motor on the 450? Thanks in advance.
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Old 02-24-2011, 11:12 PM   #2 (permalink)
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Anything is possible with enough work but you would be better off fixing the 450 motor id think... but as far as it bolting it i'd say no way, you would have to fab up some engine mounts for sure and lots of other little things to make it work(cables,wiring,exhaust,exc. good luck if you do it and lets see some pics if you do. But if it were me i wouldn't do it unless it was a R1 motor
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Old 02-24-2011, 11:52 PM   #3 (permalink)
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It would definitely take some custom work. It would be very interesting to see though you don't see that conversion, or at least I haven't. If you do decide to do it post up some pics.
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Old 02-27-2011, 06:56 PM   #4 (permalink)
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You know Ive often thought about this combination. I ride a YFZ and am not a big fan of the power band on it but love the way the YFZ is so low and stable. The power band on the 660 is awesome and would be sweet as hell on the YFZ I think. It would take some work for sure though
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Old 02-27-2011, 07:03 PM   #5 (permalink)
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The motor is taller and longer, so have fun, I like challenges, but this would be a real challenge...............
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Old 02-27-2011, 07:05 PM   #6 (permalink)
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Willykiller is so optimistic Hahahaha
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GYTR slip on exhaust
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Old 02-27-2011, 07:33 PM   #7 (permalink)
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I completely agree with you raptorforme93. That's why Ive wanted to do this for a while. The unbelievable power from the ungoverned 660R is scary. But the bike doesn't do well with turns in tight trails. With the lower stance and crazy power the bike would be unstoppable on the trails. I'm going to look at the details on the frames, motor heights, etc. If I break down and do this project ill have the pictures posted for sure.
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Old 02-27-2011, 07:35 PM   #8 (permalink)
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why not just buy a 700?...
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Old 02-27-2011, 07:42 PM   #9 (permalink)
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He already has both. But if you parted both out you could get a good start. Is the power on a 660 seriously that great? Good Luck!
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Old 02-27-2011, 08:22 PM   #10 (permalink)
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Yea he already has the motor and frame so it kinda makes sense if he is really serious about doing it. I think that the Raptor 660 has one of the best power bands ever. I love the tons of low end torque and the long gears. Plus its so easy to get a lot more power out of the engine and the aftermarket support is endless. Have you ever ridden a raptor 660? We have a raptor 350 and two 660s. If you ever get the chance to ride a 660 you will want one. Haha. I want to ride a raptor 700
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