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R-CODE Refined
Neal Hensl is a true muscle car enthusiast. Over the years he’s owned plenty of them, including Novas, Chevelles, Corvettes and a Fairlane. Not long ago, he picked up a ’68 Mustang fastback, and it wasn’t just any fastback—it was a rare R-code.

THE SNOWBALL EFFECT
The Fox-body Mustang is undoubtedly becoming one of the most popular Fords of all time, and the abundance of aftermarket components is its main attraction. Every aspect of the ’79-’93 Mustang is upgradeable, and whether you want a killer street car or an all-out drag car, the Fox-body Mustang proves to be a great platform for all kinds of performance goals. B.C. Happach of Pekin, Illinois, recognized this great potential and bought a ’91 Mustang hatchback back in March 1996. Small upgrades here and there, including a NitrousWorks plate kit, gave Happach a street-friendly Mustang that consistently ran in the high 12s with the stock suspension.

TEXAS TRANS-AM
Thirty-four-year-old Mustang enthusiast Dave McMillan of Dallas, Texas, may not have been old enough to remember those wild and woolly days of SCCA Trans-Am racing, but that doesn’t mean he can’t relive that glorious era each time he climbs inside his Trans-Am-style ’69 Mustang SportsRoof.
McMillan is what you would call a certifiable Ford nut, having owned quite a few noteworthy high-performance Fords over the years. The mix has included or currently includes the likes of a ’70 Mach 1, a ’93 SVT Mustang Cobra, an ’01 SVT Ford F-150 Lightning and a ’66 Sunbeam Tiger. “All my buddies give me a hard time for being a Ford man,” McMillan says. “I just tell them that anybody can drive a Chevrolet.”
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Product Spotlight: Brian Tooley Racing’s GEN III & IV TRUCK NORRIS CAM
Unleash the True Potential of Your GM Truck with the BTR Gen III/IV Truck Norris Camshaft
Author
The Auto Builder Staff
Images Courtesy of Brian Tooley Racing
Unmatched Performance
The BTR Truck Norris Camshaft is the result of hundreds of hours of in-house cam lobe design and dyno testing. Brian Tooley Racing left no stone unturned in developing a camshaft that brings your GM truck to life, whether you’re hauling, towing, or just tearing up the open road. With a focus on optimizing mid-range power and maintaining low-end drivability, this cam offers the perfect balance for truck owners who demand versatility and performance.
The Truck Norris Camshaft shines where it matters most—in real-world performance. Expect improved throttle response, enhanced torque for towing and hauling, and an aggressive yet refined idle that commands attention (check out the video below to hear BTR’s Truck Norris in action).
Built for Reliability
Brian Tooley Racing is known for pushing the limits of performance without sacrificing reliability, and the Truck Norris Camshaft is no exception. Crafted from high-quality materials and designed for durability, this cam is built to handle the rigors of truck life. It’s compatible with stock cylinder heads and valvetrain components, making it a straightforward upgrade that delivers massive gains without requiring extensive modifications.
For those ready to take things to the next level, pair it with supporting mods like upgraded valve springs and a tuned ECU to unleash even more power. This camshaft is the perfect foundation for a performance build, whether mild or wild.
Why Choose the Truck Norris Camshaft?
There’s no shortage of performance parts out there, but the BTR Truck Norris Camshaft stands in a league of its own. Here’s why it’s a game-changer:
- Optimized for Truck Applications: Designed specifically to enhance the performance characteristics that matter most to truck owners, like low-end torque and mid-range power.
- Proven Performance Gains: Backed by rigorous dyno testing, this camshaft consistently delivers horsepower and torque increases that you can feel.
- Ease of Installation: Compatible with factory valvetrain components, making it an ideal upgrade for enthusiasts and professionals alike.
- Legendary Reputation: Brian Tooley Racing is a name synonymous with top-tier performance, and the Truck Norris Camshaft lives up to the hype.
Real Results, Real Trucks
Don’t just take our word for it—the results speak for themselves. Truck owners across the country are raving about the difference the Truck Norris Camshaft makes. Whether you’re merging onto the highway, passing slowpokes with authority, or climbing steep grades with a heavy load, this cam delivers the performance you’ve always wanted.
Make the Upgrade Today
So, what are you waiting for? If you’re ready to take your GM truck to the next level, the BTR Gen III/IV Truck Norris Camshaft is your ticket to unmatched performance. With its perfect blend of power, reliability, and ease of installation, it’s the ultimate upgrade for your 1999-2013 Silverado or Sierra. CLICK HERE to head on over to the BTR website. Get yours today and experience the thrill of a truck that truly lives up to its potential.
Brian Tooley Racing—because your truck deserves the best.



