2uzfe (Don’t worry I won’t do this)

I’m new to working on engines and vehicles in general besides powerboats. But how much power can the cast iron block handle? Do people build these out? I’ve seen superchargers online, but they don't make a lot of additional power (or sense).

 

Did you know that Toyota made a powerboat using a 1UZ? Interesting story.

Toyota's "Epic" powerboat failure didn't help its reach toward the skies - Hagerty Media

There is this thread here to get back on track. I've got a 2007 4.7 and a 2010 5.7 truck.
Getting pounded by taxes in Canada so I'll just have to 'settle' for the 381 Hp in my 5.7.

General Supercharger Thread. | Toyota Tundra Forum (tundras.com)

 

In stock form its a great engine. The blocks can handle some decent HP. The connecting rods is their short fall. The JDM engines in the 4runners etc were supposed to have stronger forged rods. If no upgrades it was supposed to handle 6psi from the supercharger. There are some decent info out there on it.
https://www.drifted.com/2uzfe/

 

OP mentioned cast iron block. My understanding is the 4.6 and 5.7 are aluminum with cast iron sleeves?
Am I wrong? The 4.7 is aluminum as well? I like the 4.7 so smooth, mine is perfect.

 

4.7 is a cast iron block. 4.6 and 5.7 are aluminum. The two engine designs are very different, the newer engines (4.6/5.7) are not necessarily based on the older (4.7). 4.6 and 5.7 are basically the same engine, the 4.6 has a shorter stroke I believe.

Dan