loons
01-19-2005, 06:37 PM
I am going to be building my brothers 400ex motor in a couple weeks. I am eyeing the 416, or the 426. I do not want to have to sleeve the cylinder, and besides mx, we ride glamis and I'm afraid the 440 would get too hot on long rides.
I already have a hotcam(stage 1) in mind, and maybe some mild porting. What would be best reliability wise, a 416 or a 426? Also Will the cylinder need to be nikasil plated, and what mm will the cylinder need to be bored to for each engine size? I also saw some kits were for 11:1 sompression, and some 12-5:1. Which is better?I don't want to have to run just race gas.
I know it is a lot of questions, but I am new to the 400ex and I want to do this right. Thanks in advance for your help.
I already have a hotcam(stage 1) in mind, and maybe some mild porting. What would be best reliability wise, a 416 or a 426? Also Will the cylinder need to be nikasil plated, and what mm will the cylinder need to be bored to for each engine size? I also saw some kits were for 11:1 sompression, and some 12-5:1. Which is better?I don't want to have to run just race gas.
I know it is a lot of questions, but I am new to the 400ex and I want to do this right. Thanks in advance for your help.