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FINDING THE RIGHT C10
The Action Line C10 series, produced from 1967 to 1972, is one of the most popular of the classic era of Chevy trucks. They have been transformed into every form imaginable, from sweet shop trucks to double-throwdown showstoppers, from strip-burning quarter-pounders to boulder-flattening off-roaders, and certainly everything in between. We’ll long remember the days when a black ’70 stepside would pass you on the street, dumped low in the front with Americans all around, running fat rubber out back and sweet-sounding exhaust dumping out in front of the rear wheels. You just knew that guy had something trick in the garage at home, too.

Honoring a Legend
The 75th Annual Grand National Roadster Show went down from January 31 to February 2, 2025, and for those who live and breathe speed, this one hit different. ARP Racing Products turned their booth into a full-blown tribute to land speed legend George Poteet, who passed away last year, leaving behind a legacy that continues to inspire.

REDEEMING THE FORGOTTEN Y-BLOCK
When Ford introduced its Y-block engine in 1954, it labeled the engine the worthy successor to the venerable Flathead. The Flathead gained a loyal following of hot rodders and racers, but the big Cadillac overhead-valve V-8 and Oldsmobile’s Rocket 88 were stealing Ford’s thunder in terms of power, so something had to be done, and Ford decided to respond. The answer was a clean-sheet V-8 design, featuring overhead valves and improved cooling compared to the old Flathead. It was dubbed the “Y-block” because of the way it looked and because of its deep skirt and tall cylinder heads.
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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.

