Limiting Factor for Rev Limit Increase

[Newbiewan]

For you experts out there..

What are the limiting components for increasing the rev limit on a SC 1MZFE?

The SC, rods, valve train?

Any of you already done it? If so, what did you do, where is it at and how do you feel

[Mandarinsolara]

nice car man...

1.) i think its going to be more of the valvetrain than anything else buddy
2.) also how balanced the internals came from the factory.

and i wouldnt count on much more than 7k rpm to keep it on the safe side.