need more power..stroke to what size?

[mykeg11]

I am a big person at 6'4 and weighing a little over 250 lbs. and am feeling the blues after riding my '05 400ex and wishing I would have bought a 450r due to the lack of power. I have decided to keep the 400 but am debating as to what I should stroke my 400ex to- 416, 426, or 440.

I spoke to an engine builder here in Orange County, Calif. at Orange County Honda and he told me that he would resleeve the cylinder, add a piston kit, cam, and rocker arms for $1000. He said it isn't condidered a 440 stroker though????
Can someone let me know what he's talking about.
I want to do this once and do it right. I've read posts on some people getting over 40 Horsepower. I want that...how can I get it???

[Wheelie]

Sounds like he is talking about a 440 big bore and hard weld rockers. The kits you listed are all big bores.

Installing a stroker will require the cases to be split and a new crankshaft/or the old one machined.

If you're looking for 450r power, IMO stroke it.

Check out www.powroll.com.

There is also another active topic on strokers in this forum, check it out.

[Rogan91]

well ive been thinkin of puttin a 440 kit in mine but ive herd that it just ruins the bike.....im just gonna jet mine, maybe a bigger sprocket.

[mykeg11]

Stroke it I shall:p Now, where do I go about finding a reputable engine shop in my area (I'm about 15 miles from Los Angeles).
I do not wish to work on this on my own. And can you give me an estimate on what this should cost me??

[Rogan91]

Originally posted by mykeg11
Stroke it I shall:p Now, where do I go about finding a reputable engine shop in my area (I'm about 15 miles from Los Angeles).
I do not wish to work on this on my own. And can you give me an estimate on what this should cost me??

just take it to a honda dealer ship somewere around there. Im sure they got them. and i dunno how much it would cost, sry.

[mykeg11]

I called a local Honda dealer and they only install the bore kits.

do most people install the kit themselves?

[Rogan91]

i wouldnt thats for sure, easy to mess up. get it done right the first time. but i dunno what to tell u about that honda shop thing, thats suprising.

[Wheelie]

I installed my own.

GT Thunder makes a 452 stroker kit, and they do the installation work as well.

[gojk]

sparksracing is in Cali. You won't be disappointed with a sparks motor. 465 pure power kit.

Sparks Racing (http://sparksracing.com/)

[mykeg11]

called Sparks and they said they're so busy they only work on race bikes. Sounds like they dont need any business at the moment.