LS Lifter Oil Hole Direction: The Importance of Proper Lubrication for Your Engine

If you’re an engine enthusiast or a mechanic, you’ve probably heard about the LS engine. The LS engine is a high-performance engine that has gained popularity among enthusiasts for its power and reliability. However, like any engine, it requires proper lubrication to perform optimally. In this article, we’ll dive into the importance of the LS lifter oil hole direction and how it affects engine performance.

What are lifters and why are they important?

Lifters are small cylindrical components in the engine that are responsible for opening and closing the valves. The lifters push the pushrods, which in turn push the rocker arms, causing the valves to open and close.

Proper functioning lifters are essential for engine performance. Without them, the engine won’t run, and even if it does, it won’t run properly. That’s why it’s important to ensure that the lifters are well lubricated.

LS Lifter Oil Hole Direction

Now, let’s talk about the LS lifter oil hole direction. LS lifters have a unique design that makes them different from traditional lifters. They have a small oil hole that allows oil to flow through them, lubricating the lifter and the pushrod. The oil hole is an essential component of the LS engine because it ensures that the lifters are well lubricated, reducing wear and tear and improving performance.

Why is the LS Lifter Oil Hole Direction Important?

The LS lifter oil hole direction is critical because it determines the flow of oil through the lifter. The oil hole is designed to be directional, which means that it can only flow in one direction. The direction of the oil flow is important because it affects the lubrication of the lifter and the pushrod.

If the oil hole is installed in the wrong direction, the oil flow will be disrupted, and the lifter won’t be adequately lubricated. This can lead to lifter failure, increased wear and tear, and poor engine performance. That’s why it’s essential to ensure that the oil hole is installed in the correct direction.

How to Install the LS Lifter Oil Hole in the Correct Direction

The LS lifter oil hole installation process can vary depending on the specific engine and lifter design, but here is a general outline of the steps:

  • Remove the lifters from the engine block. This may require removing the cylinder heads or other components depending on the engine.
  • Clean the lifter bores in the engine block with a suitable solvent to remove any debris or old oil.
  • Inspect the lifter bores and lifters for any signs of wear or damage. Replace any worn or damaged components.
  • Insert the LS lifter oil hole into the lifter body. The oil hole should be positioned so that it lines up with the oil feed hole in the lifter body.
  • Use a suitable tool to press the LS lifter oil hole into the lifter body until it is fully seated.
  • Apply a small amount of assembly lube or engine oil to the surface of the lifter body and the LS lifter oil hole.
  • Insert the lifters back into the engine block in their proper orientation.
  • Reassemble any components that were removed during the lifter removal process.
  • Refill the engine with fresh oil and start the engine to check for proper lifter operation.

It is important to refer to the manufacturer’s instructions or consult with a qualified mechanic to ensure that the LS lifter oil hole is installed correctly for your specific engine and lifter design.


Proper lubrication is critical for the performance and longevity of your LS engine. The LS lifter oil hole direction plays a crucial role in ensuring that the lifters are adequately lubricated. Installing the oil hole in the correct direction can prevent lifter failure, reduce wear and tear, and improve engine performance.

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