440 big bore kit!

[da 400ex]

hey guys i was thinkin of upgradin to the 440 kit.. i just wanted to no some things that u guys did to keep it a lil cooler.. and i also wanted to no some jetting specs for it .. thanks!!

[lester985]

the 440 more trouble than its worth the 416 is a very good setup u will have alot of power and it will still be bullit proof

[mdt75crazy]

you can get fender air scoops that help direct air onto the motor.i have the 440 kit and havent had any over heating issues and i don't have the scoops yet. just don't let it sit and idle for too long.

[da 400ex]

k thanks also what jet size are u running.?

[mdt75crazy]

honestly dont know... haven't had to tear into the carb yet... bought it with them already installed. i know its jetted otherwise it wouldn't run or idle right.

[da 400ex]

well when u get time take a peek in there and jet let me no what size u runnin :D

[pyro7478]

i just put a 440 in my 01 and have a 165 dyno jet in it. and the needle 3rd clip down. and im near sea level.

[da 400ex]

what state u live in?

[Rscarpantonio]

a little off topic but just curious if anyone has a chart showing the diffrent jetting brands and what there equilvent to like a refrence chart or something

[da 400ex]

go to jetsrus.com they have a chart...