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View Full Version : what is the best engine to fit in a 350X



Trikemaker
03-14-2004, 05:23 PM
i would like to have opinions for what motor i must use to fit in my 350X for my atc will be more performant...

400ex engine or 600cc in-line 4cyl?????????

ATC crazy
03-14-2004, 06:37 PM
Obviously the 400EX motor would fit in there better than the 600. The EX's motor has the same HP as the 350X, but definately more aftermarket power upgrades.

The 600 would be a cool engine swap to do...but there wouldnt be much use for it except at the dunes, drag strip, or dirt roads.

Go with the 400EX motor and put a 440 kit on it with an E-Series pipe, and WB Cam. :twisted:

Trikemaker
03-14-2004, 07:53 PM
does the 400ex have same hp that the 350X and why??...the oils coolers?

short4stuff
03-14-2004, 08:38 PM
kept the 350x engine and get a 452 big bore kit that way you will have more than a 400ex can get plus an extra gear. ;)

84250r
03-14-2004, 08:48 PM
does the 400ex have same hp that the 350X and why??...the oils coolers?



The EX's motor has the same HP as the 350X, but definately more aftermarket power upgrades

Trikemaker
03-14-2004, 09:07 PM
ok ok...but i also found a 2stroke 250cc of yfz...what's the best choice...4stroke or 2stroke