Looking for a couple measurements from a 1st gen 450 engine


4 replies to this topic
  • jojo1224

Posted January 17, 2014 - 12:43 PM

#1

I am looking for the cylinder base to deck height and also the height of the head with valve cover. I have searched but have found nothing.

Thanks

  • jojo1224

Posted January 20, 2014 - 09:47 PM

#2

No one knows the height of a 03-05 yz450f cylinder?



Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • nuity5

Posted January 21, 2014 - 04:14 PM

#3

Ill measure first thing in the morning for you if somebody else doesn't reply first. Clay

  • nuity5

Posted January 22, 2014 - 12:59 PM

#4

Cylinder is 77mm from base gasket surface to head gasket surface. Overall head / valve cover height is 138mm from head gasket surface to the tallest portion of the valve cover which is over the cam chain. The next highest point is the coil which adds about another 30mm over the 138 dimension. Let me know if you need anything else. Clay

  • jojo1224

Posted January 22, 2014 - 02:50 PM

#5

Thanks Clay, on paper it looks like my yz/wr426 500cc big bore long rod stroker will work. Now to find a good core 03-05 450 head and a JSR 98mm tall deck cylinder for mock up.







Related Content

Forums
Photo

05 yz450f not fast enough by RedeyeYZ


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies
Forums
Photo

Megabomb Fitment by 288yz450


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
Forums
Photo

Should I buy this bike? help....... by Numsa Hul


Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 replies
Reviews

Yamaha YZ450F 2017 by Chris.GVS


Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017
Forums
Photo

The "going back to the other darkside" adventure... by Monk


Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  113 replies
 
x

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.