What cam is right for your combination? This question will get more arguments than a political discussion, and that’s okay, but only if some of you realize you are wrong. LOL Sorry, but there are a lot of similarities between engine arguments and political arguments as people trust what they are told instead of trusting the actual data in front of them. Richard Holdener is the guy who’s data you can trust, and in this video he takes an LS 5.3 junkyard engine and lets it rip on the dyno at Westech in search of the answers to your single pattern vs dual pattern vs reverse dual pattern camshaft questions.
In this video you’ll see real power numbers from a junkyard 5.3 in stock form, with the exception of long tube headers, no accessories, and no air cleaner assembly. In this trim these engines regularly make right around 350 horsepower and 375 lb ft of torque. Adding a “Stage 1” camshaft to them usually results in somewhere around a 30 horsepower gain. Of course more cam and other components can do even more, but this is where these tests are going to start, so watch the video below and see what you think.
