upgrade

[400exrider720]

What should I go with, a 426 or a 440? also where can I find a good426 kit (piston,crank, gaskets)? Lastly what would you recommend for other parts in the motor to help it run better? Thanks.

[underpowered]

search. this topic has been beat to death, brougth back to life just to be beat to death again.

it comes down to opinion. I love my 426 and woudl say to go that route. and whete to get stuff i believe you should support teh local guy and buy your parts from a local shop. dows not have to be a dealer, just a local shop.