YZ426F Big Bore / Stroker Kit - MAX Displacement??

What's the largest displacement number one can achieve with the 426 via boring or stroking? We've all seen the 444 kits but what else is out there? Is it possibly to exceed 450cc with the 426 engine? I have yet to find an Athena or Ice Cube type replacement cylinder or kit, and I have yet to see or hear of anyone using a 450 cylinder or otherwise. I'd LOVE to get up to about 470cc but am doubtful it's possible.

I talked to Falicon about my 426 a couple of years ago. They could stroke it to 488. Here is the link to there site. http://www.faliconcranks.com/index.html

I am familiar with Falicon. They make a crankshaft for my cannondale I've been planning on purchasing one day but it costs $1350 so it's tough to cough up the cash! I browsed their website and do not see anything at all posted on the 426 but I'll shoot them an email and see what they say.

Anybody know of other companies that could stroke the stock crank perhaps? I know Falicon is simply one of the best choices for that service but they are very proud of their work and simply may just be TOO BOOKOO! We'll see what they have to say.

I am familiar with Falicon. They make a crankshaft for my cannondale I've been planning on purchasing one day but it costs $1350 so it's tough to cough up the cash! I browsed their website and do not see anything at all posted on the 426 but I'll shoot them an email and see what they say.

Anybody know of other companies that could stroke the stock crank perhaps? I know Falicon is simply one of the best choices for that service but they are very proud of their work and simply may just be TOO BOOKOO! We'll see what they have to say.

please let me know of your findings

hmmm

maybe we can do a group buy

I'm not sure what the difference is between the 426 and the 450 engines, but i know you can take the 450 engines up to 550cc's or larger. I wouldn't recomend it as this is what we do to our atv drag bikes, and this requires big stroker cranks and after market cylinders to get the bore large enough. 501cc's is a pretty easy task and is easy to get to with out spending a ton of money.

Falicon can stroke the stock crank for you and put on a stronger rod etc... Crankworks is also another great place which i usually deal with. They are cheaper but do quality work only bad thing is they are usually backed up with a slow turn around time where falicon can usually do it in a week's time.

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