Skip to content

How to Identify Unknown Camshaft

The camshaft is a vital component in any engine, and as such, it is important to be able to identify an unknown camshaft. There are several ways to identify an unknown camshaft, the most common of which are by visual inspection, measuring the lobe height, or using a micrometer. All of these methods can be used to accurately identify an unknown camshaft.

  • Examine the camshaft for any visible markings that may identify the manufacturer
  • Compare the dimensions of the camshaft to known measurements for known brands and models
  • Look for any wear or damage on the camshaft that may help to identify it
  • Check engine performance records to see if there is any information about what brand or model of camshaft was previously installed in the engine
How to Identify Unknown Camshaft


How Do You Identify a Cam?

In order to identify a cam, you will need to know the specific features to look for. Cams are often used in engines and other machinery as a way to convert rotational motion into linear motion. They typically have a cylindrical shape with an offset lobe that is raised on one side.

The lobe presses against a follower, which in turn creates the linear motion. When choosing a cam, it is important to consider the size, shape and material of the lobe as well as the lift and duration.

Do Camshafts Have Part Numbers?

Camshafts are key components in any internal combustion engine, and as such, each one is assigned a unique part number. This ensures that the correct camshaft is installed in the engine, and also makes it easy to identify and order replacement parts if needed. While the part numbers for camshafts can vary depending on the manufacturer, they all serve the same purpose of identifying a specific camshaft.

What Do the Numbers on the End of a Camshaft Mean?

When it comes to understanding camshafts, one of the most important things to know are the numbers on the end. These numbers can tell you a lot about how the camshaft is designed and what it is best suited for. In this article, we will take a closer look at what these numbers mean and how they can help you choose the right camshaft for your engine.

See also  Toyota Not Ready to Drive

The first number on a camshaft is typically the intake duration. This is the amount of time that intake valves are open during each cycle. A longer duration will result in more air being drawn into the cylinders, which can lead to more power.

However, excessive duration can also cause problems such as valve float or piston-to-valve clearance issues. The second number is usually the exhaust duration. Just like with intakes, a longer exhaust duration will often result in more power.

However, too much duration can cause problems such as reversion pulses or decreased fuel economy. The third number you’ll see is lift. This refers to how high the valves are lifted off their seats during each cycle.

More lift generally means more airflow and therefore more power potential. However, too much lift can cause valve float or damage to valvetrain components. Finally, lobe separation angle (LSA) is sometimes included on performance camshafts .

This refers to the angle between adjacent intake and exhaust lobes . A smaller LSA usually results in better low-end torque , while a larger LSA often provides better high-rpm horsepower .

How Do I Find Out My Camshaft Specs?

If you’re looking to find out the specs of your camshaft, there are a few ways you can go about it. One option is to look in your car’s owner’s manual. This should have all the information you need on your particular make and model of vehicle.

Another way to find out your camshaft specs is to contact the manufacturer directly. They should be able to give you specific information on the camshafts used in their vehicles. Finally, if you’re still having trouble finding the information you need, there are a number of online resources that can help you track down the specs of just about any camshaft out there.

How to identify lobes on an aftermarket cam.

Gm Camshaft Identification Numbers

When it comes to GM camshafts, there are a few different ways to identify them. The most common way is by the casting number which is usually found on the side of the block near the oil filter adapter or on the top rear of the engine. Another way to identify a GM camshaft is by the stamped identification numbers located on either end of the camshaft.

See also  Toyota Battery Light Reset

The first thing you’ll need to do when trying to identify a GM camshaft is locate where the casting number is located. As mentioned earlier, this can typically be found on the side of the block near the oil filter adapter or on the top rear of the engine. Once you’ve found this number, it’s simply a matter of looking up what it corresponds to in terms of make and model year.

If you’re having trouble finding the casting number or if it’s not legible, another option is to look for stamped identification numbers on either end of the camshaft. These numbers will usually be much easier to read and will provide you with all information needed in order to correctly identify which GM camshaft you have.

Sbc Camshaft Identification

If you’re looking to identify an SBC camshaft, there are a few things you’ll want to look for. First, the camshaft should have a diameter of 1.5 inches (3.8 cm). It should also have a lobe width of 0.250 inches (6.35 mm).

Finally, the base circle diameter should be 2.100 inches (53.34 mm). These dimensions will help you narrow down your options and identify an SBC camshaft. Once you’ve found a potential match, it’s always best to compare it against other cams to be sure.

But with these guidelines in mind, you should be able to find the right one for your engine!

Crane Camshaft Identification

Crane Camshafts offers a wide variety of high performance camshafts for many different engine applications. There are several ways to identify a Crane cam, including the company’s part number and casting number. The part number is usually stamped on the end of the camshaft.

The casting number is located on the side of the cam near the distributor gear. It is important to note that not all Crane cams have both a part number and a casting number; some may just have one or the other. If you are unsure which Crane cam is best suited for your engine, consult with a qualified engine builder or machinist.

They will be able to help you select the correct cam based on your specific application and needs.

See also  Rav4 High Pitched Whine

Camshaft Number Lookup

When you’re looking for a new camshaft, one of the first things you’ll need to do is find the right number. There are a few different ways to do this, but the easiest is probably to use a camshaft number lookup. This will give you a list of all the available options for your vehicle, and you can narrow it down from there.

You can also use this tool to compare prices and find the best deal on your new camshaft. There are a few things to keep in mind when using a camshaft number lookup. First, make sure that you enter the correct information for your vehicle.

If you don’t, you might not get accurate results. Second, be aware that some numbers might be slightly different than others. This is because there are often different versions of the same camshaft available.

So if you see two numbers that are close but not identical, it’s likely that they’re both correct for your car. Finally, don’t forget to double-check your work before ordering anything. This way, you can be sure that you’re getting exactly what you need.


If you’re looking to identify an unknown camshaft, there are a few key things you can look for. First, check the diameter of the cam lobe. This can give you a good idea of what size engine the camshaft is designed for.

Next, take a look at the shape of the lobe. If it’s rounded, it’s likely an OHC (overhead cam) design; if it’s more flattened out, it’s likely a pushrod design. Finally, check the material the lobe is made out of.

If it’s cast iron, it’s likely an older design; if it’s steel or aluminum, it’s likely a newer design. With these three factors in mind, you should be able to narrow down your search and identify an unknown camshaft.

Leave a Reply

Your email address will not be published. Required fields are marked *