[99trx400ex]

i have a 400ex but am thinking about maybe upgrading but should i go with the 426 or 440 or stay at a 400 and build the machine up with other aftermarket parts??
im open to any suggestions

 

[300ex power by monster]

the 426 is the best thats wat my friends says

 

[Helmut]

I haven't had any experience with them because I don't own a 400EX, but I have also heard from a lot of people, that the 426 is more dependable.

 

[99trx400ex]

once again you set me straight haha. ive heard go with the big bada*s 440 but i heard itll blow a head real fast too even if usesing diff sparkplugs and race gas. im just looking to add a little pep in my step ya know im not looking to have the badest machine out there and i want it to last too....even tho its a honda, itll already last forever (im my opinion)......what kinda machine do you ride jw

 

[Helmut]

I mostly ride utility ATVs, I have a 400 Foreman and a 660 Grizzly and a 350 Warrior.

 

[99trx400ex]

oh ok thats cool too, i have a 300ex 400ex and a 500 foreman es. i like to go fast but the utility wheelers are BA too. ive done a ton of ridingon them....my favorite is crossing rivers or goin across ponds, as soon as that front end goes under lean back and nail the throtle and it pops up and u can ride across on the water, i love it....im sure you knew that but i was just sayn. do u have yours snokled??

 

[Helmut]

No, I mostly just trail ride with the occasional deep mudhole. LOL.

 

[300ex power by monster]

i have a 330ex

 

[99trx400ex]

so it was originaly a 300ex and u big bored it to a 330?? how do you like that cuz i also have a 300ex but i havnt done anything to it yet im tryn to build up my 400ex first.

 

[elmerkit]

I would choose 426 for its more dependable and has a lot of goods for up grades.

 

[99trx400ex]

with a 426 can i still just run 93 premium pump gas

 

[pineapplesoymilk]

i have been having this same debate lol

 

[pineapplesoymilk]

where can i find a whole 426 bore kit?

 

[jgar]

I would go with the 426 if you are a pitt rider. You know, haul it in and stay in the same area. If you are a trail rider trying to cover 50 plus miles in a day, I would keep it stock. Nice and reliable.

 

[Helmut]

I would go with the 426 if you are a pitt rider. You know, haul it in and stay in the same area. If you are a trail rider trying to cover 50 plus miles in a day, I would keep it stock. Nice and reliable.

Sounds like good advice to me.

 

[pineapplesoymilk]

yea man thanks, any one know where i can find the kits?

 

[Helmut]

yea man thanks, any one know where i can find the kits?

426 cc 11:1 Big Bore Kit Honda TRX 400EX TRX400EX XR400: eBay Motors (item 270294486190 end time Jun-20-10 17:09:55 PDT)

 

[ChrisR112]

so whats the best thing to do if u got a big bore 440 to make it last longer?