How to replace the Lifter/cam shaft?

So, the cylinder heads will need to be removed, so start by draining the engine oil and coolant, then disconnect the battery. Add new oil and coolant once the job is complete.

Here is a video series that can give you an idea of what you are in for with instructions below to show you step by step:

https://www.youtube.com/playlist?list=PLe3kz1i_LrtX5402mzO6ovoz8xeUdwZ8B

Also, the front timing chain cover will need to be removed so remove the serpentine belt and the accessories. Be sure not to allow any of the old gasket material to enter the engine because it will clog up the oil pump pickup. If you remove the oil pan clean it out as well. Remove the intake manifold and valve covers. Remember these head bolts are torque to yield so you will need new ones, Also, a new camshaft sprocket bolt. Check out the images (below). Please upload pictures or videos in your response to any problems so we can see what to help you with.