BORE KIT or CAM?

[yellow400ex05]

what would be the better modification?

a 416 kit or a stage 1 hotcam?

what kind of increases would i see with each individual one?

would a cam give me more power than just a 416 or is it the other way around?

also with a 416 kit, would i be blowing headgaskets left and right?

how would my chances be against a stock 04 450r? alos these mod WILL be with a slip-on HMF and a twin air airfilter

[ImplodedMindZ]

I can only answere a few of your questions, i have a 416 and stage 2 hotcam and i could barely pull on my buddies 06 yzf450 but mostly b/c his ran like crap from the factory. He couldnt do more than 3/4 throttle or it would bog down.
I doubt w/ one or the other your lookin @ you will be able to whop on a 450. And w/ mine so far i havent had to worry about the headgasket. Runnin strong so far.
If i were you i would bore first then later on you can go back in and put a cam in guess it depends alot on the $$ you got and if your doin it yourself.

[krt400ex]

do both, and a full system. u will be lloking at like 32-33 hp and u will be able to beat stock 450s. i will be doin that soon, but i will have a 11:1 piston too;)




if u don't plan on doin both, then i would definately do the cam first. with a big bore and a stock cam, the engine will not be able to breathe as well.

u shouldn't blow any headgaskets with the 416. i have only heard of this on the 440s without hd studs

[PismoLocal]

Save your money until you cam afford both at the same time. It will save you money in the long run and the power increase will make it feel like a whole different quad.

[newrider4002001]

go with the cam dont bother boring it. i have an 01 with stage 1 hotcam only bored to 406 and i can beat 450s

[CHEVYZ]

Stock 450s suck. They are the most corked up things on the planet. I say do both and you should have no problems running with very lightly modded 450s.