zero6200a
10-22-2008, 12:38 AM
i have a 93 300 ex that i wont ot full re build the motor on. the case was cracked. but i got a 02 complete bottom end to replace it. there is some thing done to the motor but i have no idea as to what. he told me it was just a piston. other then that ever thing els is getting replace piston clutch and basket vales springs cams and what ever els i can think of y i am in there. now hear is my ? what piston and what size should i put in there. vales i can figer out most likely got with stage 1 hot cams or with some thing that is better. vales should i re place with stocks 1 or get after market 1s it well most like need new springs. replace with stockers or heveduty 1. i well be pouting a full HMF on and a400ex crab and a foam filter. i relay wont to have alot of reliability do to the fact i trail ride with and race XC