If you're looking to cam your Silverado, the cost will depend on a few factors. First, you'll need to decide which type of cam you want. There are two main types of cams: performance and stock. Performance cams will typically cost more than stock cams. Second, you'll need to decide which brand of cam you want. There are many reputable brands out there, so do some research to find one that fits your needs and budget. Third, you'll need to factor in the cost of installation. If you're not comfortable doing it yourself, you'll need to pay someone else to do it for you. Finally, keep in mind that once you cam your Silverado, it may void the warranty from Chevrolet. With all that said, the average cost to cam a Silverado is between $1,500 and $2,500 depending on the factors mentioned above.