King, acl, or clevite bearings?

[dylansword]

I'm buying an engine that was just rebuilt, it has king bearings is in right now. I've done some research and from what I've found, king bearings aren't the best. So my question is, should I just run te bearings it has, or switch it out for different ones. I've also read that ACL bearings are good, but don't last very long. Any I put is great.

 

[91Supra313]

If there is nothing wrong with it, then why touch it? No point in changing something that isn't failing.

 

[dylansword]

Because I want it to last. I'm going to be running 450 ish horse

 

[91Supra313]

Those bearings will be fine. As long as it is built right the bearings will be fine. Make sure everything is within spec and it will last.