Big Bore Kit?

[JKWGA400EX]

HEY WHICH WOULD BE BETTER FOR TRAIL RIDING,A 416 KIT,A 426 KIT,OR A 440.AND ALSO WHAT WOULD YOU HAVE TO HAD TO THE 400EX TO MAKE THEM WORK PROPERLY.

THANKS







JK

[cals400ex]

on average, a 440 will have more torque, won't rev quite as high, will produce more heat, and will pull more head studs. i would go with a smaller bore because the power difference won't be much different and it will be cheaper than putting in a new sleeve with the 426 and 440 kits. i do have a 406 piston forsale if your interested.