You may not have heard of RJ Fab, but you’ve probably seen something they have built. When Rob Lindsay started RJ Fab a few decades ago I doubt he thought he’d build a brand that covered so many cool builds in so many different disciplines, but this guy can do it all. From Pro Mods to Pre-Runners, Pro Touring machines to custom UTVs, and everything in between, if it needs custom fabrication then Rob has got it handled. And man do they build some sexy stuff. If you like weld porn and quality without excuses, they’ve got it covered. I bring up their reputation and quality so you’ll know that they know what they are talking about, and thankfully they are willing to share some of that knowledge.
In the video below, Rob is talking about custom headers. And he’s not bashing on off the shelf headers, just commenting on why you might want custom headers and how to build them when you do. It’s not a step by step how to, but more a tips, tricks, and thought process kind of video that can give you some insight into what it takes so you can tackle a set yourself. Or not! Even if you don’t want to build your own headers, knowing these things will help you make a better choice when hiring someone to build them for you. Being better educated on what it takes not only keeps your expectations real, but lets you spot a BS artist as well.
So check out the video below and let us know what you think. Will you build your own headers after watching?
Video Description:
In this episode, RJ Fab breaks down the fundamentals of custom header construction, header design, and why custom-built headers can outperform off-the-shelf options.
Using our nearly 1000 horsepower 598 cubic inch big block Chevy C10 build as an example, we explain:
-Primary tube sizing
-Step headers
-Collector design
-Pulse firing order
-Ground clearance considerations
-Header flange thickness
-V-band clamps
-Equal length myths
-Real-world horsepower testing
Whether you’re building your first set of headers or just want to better understand what actually matters in exhaust design, this video is packed with real fabrication experience and practical performance knowledge.
Topics Covered:
-Custom stainless headers
-Big block Chevy exhaust design
-2.25” stepped primary tubes
-Merge collectors
-V-band exhaust systems
-Exhaust flow theory
-Fabrication techniquesd
-Header gasket recommendations
-Header construction tips
-Street performance vs race applications
