What is the best engine for my 240z?

[jthefreeker]

I was wondering wich engine is best for my 240z, the vq35, rb26 or the sr20.

[S14DB]

What about LS1?

There are many options to consider and many reasons why each is better in different circumstances. Search more on each swap and what is better for you. Even laying out your goals/needs would be helpful. Figure out what is best for you and make your own choice.