how fast are the 450?

[yamablaster24]

I was wondering if ther is anyway to make my 400ex motor hang with the 450 in the 4-stroke class? I live by baldwin and i was thinking of having him build me a 440 or something for MX

If u guys have any info on who builds good 440 motors around cleveland let me know.

[murrays400ex]

if u talk to mcr they make mini coolers if u get that a power jit and a 440 kit you can keep up

[eagertorace]

go with the 416 instead! you won't have any problems keeping up. 416 is more reliable than the 440 and if it's built right, it'll smoke the 440's:D

[Cody_300ex]

Originally posted by eagertorace
go with the 416 instead! you won't have any problems keeping up. 416 is more reliable than the 440 and if it's built right, it'll smoke the 440's:D

Very true! If you get dirt or something in the engine you still have room to bore, and not have to resleave. A 416 would also be cheaper cause you don't have to buy a sleave, pay for the machine work to have it pressed in and machined to fit correctly. I would let Baldwin work his magic on it. The way Farrs 450r's running he would be one I would choose in your situation.