how to turn my 400 into a 440?

[romeo_1885]

i know, i should know by now, but can i turn my 400 into a 440 without taking my engine to a machine shop? I'm running low on money and i jsut bought the parts to make it a 440, jsut waiting for them to come in the mail... i wanted to know if i could do everything myself? thanks for your help.

[Ruby Soho]

unless you have tools to press a new sleeve in and bore the cylinder, no.

[NacsMXer]

Yep ^^^, sad but true. Stock sleeve needs to be pressed out, cylinder needs to be bored to accept 440 sleeve, 440 sleeve needs to be pressed into cylinder, 440 sleeve must be bored/honed to match new 440 piston.

When my EX was a 440, I just took everything to a local machine shop and had it done for about $100. If you want to do it right, have everything professionally machined...the rest of the install you can handle on your own :)

[Chin_Chilla]

Originally posted by NacsMXer
Yep ^^^, sad but true. Stock sleeve needs to be pressed out, cylinder needs to be bored to accept 440 sleeve, 440 sleeve needs to be pressed into cylinder, 440 sleeve must be bored/honed to match new 440 piston.

When my EX was a 440, I just took everything to a local machine shop and had it done for about $100. If you want to do it right, have everything professionally machined...the rest of the install you can handle on your own :) Not to hijack this thread, but would you mind posting pics of your 400EX. By the description it sounds bad ***, I just wanna see it!

[Ruby Soho]

And with a 440, go with HD parts, like HD cam chain, HD studs, the right gaskets..

[NacsMXer]

Originally posted by Chin_Chilla
Not to hijack this thread, but would you mind posting pics of your 400EX. By the description it sounds bad ***, I just wanna see it!

Sure, here ya go. Hope the original thread starter doesn't mind the hijack! :p Long travel Roll/PEP setup going on in a couple weeks as soon as the shocks are done! :D

http://www.imagestation.com/picture/sraid207/p84c99b7e419403ed8db28daa032eccd9/eea25cc4.jpg
http://www.imagestation.com/picture/sraid207/p8d62aae1d0c9d8b565895276ad0aea1b/eea25d63.jpg
http://www.imagestation.com/picture/sraid207/p4ac11fa255660f305c7f4a663a80f4ce/ee9eeb80.jpg
http://www.imagestation.com/picture/sraid207/pc9995c61af571771782da7ffde87e2bc/ee9eea6d.jpg

[Chin_Chilla]

Damn man nice bike! What you going to do with the JD and standard peps? They look like peps at least!