New project

4 replies to this topic
  • TheUSMC1775

Posted October 17, 2013 - 06:02 PM


What's going on fellow riders I own a 2004 yz450f is it possible to put that motor in a aluminum frame? What are the chances of it working? Thanks it's jut a thought.

  • grayracer513

Posted October 17, 2013 - 07:29 PM


You should search that subject.  There's been a lot of discussion about it.  In summary:


  • It can be fit to the '06-'09 YZ450 frame, but it wasn't made for it. All three hard points require minor fabrication.
  • The tilt of the engine is different, makes some stuff on top of the engine hard to get at.
  • The air boot will need to be extended
  • The aluminum frames don't have an oil tank.  The 250F has an external tank, so that may work.
  • The frame isn't lighter than the steel one


And when you can buy an '06-'07 for $2200, why do all that?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Yamiryder

Posted October 18, 2013 - 07:48 AM


Not worth it to me.

  • KJ790

Posted October 18, 2013 - 08:55 AM


I agree with Gray, you can pick up an 06 YZ450F for $2000 around here. If your 04 is in decent shape you could probably get $1600 or so for it, so you could be into a purpose built aluminum framed 450 with the better SSS suspension for $400 or so.

  • TheUSMC1775

Posted October 18, 2013 - 11:51 AM


Thanks guys!

Related Content


Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

yz400f throttle bog by yz400fmaniac

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • * * * * *
  • Hot  28 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  131 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.