How do I know what camshaft I have?
How to Identify a Camshaft by Number
- Find the model prefix. The model prefix is the first part of the camshaft number, and it describes the vehicle that the camshaft is meant for.
- Find the profile or grind number.
- Find the exhaust number and add it to the end of the list of numbers.
What do the numbers on camshafts mean?
The are two measurements, duration and valve lift. The duration of measured in degrees ex 278, 288 like you gave. This measures how long the valve will stay open. For example, 278 degrees of rotation of the roller the valve will be closed. The other 82 degrees of rotation is where the valve will be open.
How do I know if I have an aftermarket cam?
If you pull a valve cover, you can tell very easily if you have aftermarket cams. Aftermarket are shiny and made of billet steel where stock ones are a dull greyish color with pressed on lobes. You can tell from 15 feet away.
What is a Stage 1 cam?
Stage 1 cam sets are used to give increased Torque output in the RPM range below the engine’s Torque peak. More part-throttle Torque, better low RPM throttle response, and increased peak Torque will be produced by these cams. Peak horsepower may also be improved in some cases.
Does a cam make a car shake?
Not a single one, even the ones with HUGE cams. You get vibrations from the lope, some more than others depending on the size, but you don’t get body shake back and forth like with the GTO.
Does every car have a cam?
Every roadgoing production car engine has at least one, and many current engines have two or more. To open and close the valves, a camshaft has egg-shaped lobes — or cams — mounted on a shaft.
What is the difference between a flat tappet cam and a roller cam?
The flat-tappet cam lobe is more pointed at peak lift, while the roller cam nose tends to be rounded; this means the roller is holding the valve open at higher lift for a longer period of time, which results in a greater fuel/air charge. The lobe shape also opens the valve much faster.
Where is the ID number on a Chevy camshaft?
Locate the ID number on the camshaft. It is typically located in the center of the cam between the lobes. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. Match the number to a Chevrolet camshaft part number listing.
What kind of camshaft does a Chevy have?
Camshafts come in a wide array of variations, and Chevrolet has a range of camshafts for different applications, engine sizes and performance specs. As each engine model comes with a specific camshaft, proper identification is key to finding the right one.
What are the markings on a camshaft shaft?
The only stamped markings on the front are 951758. On the shaft the #’s 1539 are stamped in one spot, and CWC is stamped in another spot. I tried searching & googling these markings with no luck.
What do you need to remove a Chevy Cam?
Remove the camshaft from the engine if necessary. This is an involved process, requiring the removal of the engine’s front end. The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. This is a job for professionals and the mechanically-inclined.
