If you're working on a non-AFM GM engine between 2008-2023, these oil valley plugs might be exactly what you need.

We're talking about LS series engines like LS1, LS2, LS3, LS7 and LT series including LT1, LT4, LT5 models.

They're designed specifically for 4.8L, 5.3L, 6.0L, and 6.2L displacements - basically covering most of the popular GM engines out there.

So what do these little guys do?

They seal those AFM oil passages under the VLOM plate, helping to eliminate AFM oil circuit related issues that can plague these engines.

The installation is pretty straightforward - you gently tap each plug into the oil passage hole until it sits flush with the bottom edge of the bung.

Made from stainless steel with anti-corrosion treatment, they're built to last and maintain proper engine oil pressure stability.

Here's a pro tip though - if you encounter any tight fits during installation, try freezing the plugs for about an hour first.

Makes them much easier to work with.

And if you ever need to remove them?

No worries - each plug has a 4mm x 0.7 threaded hole on top specifically for easy removal.

This 8-pack gives you everything you need to properly seal your engine's oil passages, potentially saving you from some costly AFM-related repairs down the road.