*help* 05 400ex 416/426/440 ? more power

[nowukno]

I have a 05 400ex with pro circuit full system , k&n with outerwear , rev box and stage 2 jet kit . The Quad runs great but i still would like more power on top end , so what would be the best , a 416 bore , 426 or a 440. I mainly ride trails and go on very long rides , so with my type of riding and wanting top end power which one would be the best for my Quad and also which brand (wiseco or je)? Or maybe there is something else that could help out.

[400EX QUADER]

How much u wanna spend?

[nowukno]

.

[nowukno]

[QUOTE]Originally posted by nowukno
[B]How much u wanna spend?

i dont care as long as it is worth it

[400EX QUADER]

Well save up about $1000 or a little more and find a used 38-39 mm carb,hotcam-3, je piston,416 or 426 bore and a good port/polish.

[nowukno]

any more ideas?

[shawn1103]

im getting ready to go with a bigger motor myself. im gonna be doin flat track racing though.

[shawn1103]

oh and another thing. the stock carb. on the 05's are 38mm keihin. so if your gonna go bigger, go with a 39 or above.

[400EX QUADER]

PM mikeboone on here for porting.He is supposed to do A+ work!!!

[nowukno]

so what would be best for long trail rides/top end power , the 416/426 or 440 ?

[400EX QUADER]

Prolly the 440 but it's not that reliable.

[nowukno]

i think i might go with the 416 cause ive heard that it would be the best for the longer rides but i would still like your opinions on what to buy

[400EX QUADER]

Get the list I told u to get and a 416.416 is the best and that's y i'm gettin it.

[nowukno]

thanks 4 the info , i'll go with a 416

[honda92]

sell it and then buy a 450r and you will have a faster reliable quad.

[nowukno]

but i love the electric start and reverse

[honda92]

then go for it

[lil_billy_300ex]

i just got a 416 piston for my 2005 400ex. i got a stage 2 hotcam also. im pretty much doing type or riding. long trail riding and racing. my buddy did a 416 kit too. i want my 400 relialbe but with a little more kick:D

[hoser 400ex]

if im the buddy ur talkin bout lil_billy u forgot to mention that mines a powroll 416 stroker(440):D