OK now... maybe i'm just wierd or something.. but heres the question.

Stock motors last 200K ( if u take care of them)

Why do people tell me that built motors last 30-40 K miles or less... now dont tell me that they come under more stress... thats a given. thats why you built it.. But with proper safe tuning why cant a built motor last until 100K?

For example.... why would a superbly built SR20DET have a problem running 350rwhp for many many moons........