416 or 440?

[trx400EXtreme]

if i were to get a bore kit 4 my 400, would it be more worth the money to get a 416 or a 440?thanx.

[quads14589]

426 if you get the 440 your quad will over heat way to fast and a 416 really isnt worth it so in between that you should get the 426.

[400exstud]

Actually a 440 will run cooler than a 426 (on the stock sleeve).

[beaker1214]

It really depends what you are wanting it for, I have a 416 and I like it because its alot more reliable and it doesnt take as much extra stuff like a 440. Like heavy duty head bolts for instance, A well built 416 will give you more power with out sacrificing the reliablity.