mattmartindrift

First off, some pre-story. the LS1 I bought, supposedly out of a 2000 Camaro, was basically a stock long block that was missing some stuff as the previous owner upgraded and took a bunch of stuff off of this engine.

I'll be running a non-GM-based standalone, so original sensors aren't an issue if I don't need them.

So, when I pulled off the front timing cover, I found this (attached image) machined hole above the crankshaft.


What is it for? I searched for probably 4 hours, and I most LS-x pictures I've found do not have this hole. I could only imagine it to be some sort of cam/crank sensor. I imagine there will be no downfall to using a freeze plug, or to just bolt a blank in since I will be running the timing reference from a different source.

Thanks,
matt

mattmartindrift

nevermind, I finally found pictures!!!!


I suppose it's just left open to let oil flow into the timing components....interesting.