I'm in the middle of an LS3 swap into a BRZ, and found these in my oil pan / crank case. The engine came out of a 2010 Corvette GS.





So far, I've found four of them. General consensus when finding roller bearings in the oil pan seems to be that they came from the rockers.

However, the rocker arm bearings i've seen so far on here are kind of short and fat.. where are mine are long and thin....if you know what I mean.

Can someone tell me if these came from the rockers?

I pulled the valve covers and everything looked OK from a quick inspection but just in case, I've already ordered a Straub trunnion kit.


edit:

Now I'm starting to think this came from a lifter...

 

You will then find out what the rocker needle bearings look like. I don't think they're short and fat though..

 

Pull the valve covers, and examine all the rockers carefully. You’ll see pretty quickly if it’s a rocker or not.

 

Measure the diameter and length and I'll compare it to the rocker needles I took out when I did a trunion upgrade.

Did you disassemble the Lifter? How do the needles you found compare to the needles from the lifter?

 

Stock rocker arm needles are .065" (1.65mm) x .247" (6.27mm).

12.5mm width would most likely be a lifter needle.

If you found lifter needles in your oil pan, I'd like to think you would hear bad things happening if the engine was running.


Good luck.