BTR Brian Tooley Racing L83 Truck Norris Camshaft | Fits 2014-2019 Gen V 5.3L L83 L8B | Aggressive Idle with Stock Converter Compatibility (Cam, Springs, Seals, Pushrods, Phaser Limiter & Tool Kit)

The Brian Tooley Racing L83 Truck Norris camshaft is engineered specifically for 2014–2019 Gen V 5.3L truck engines to deliver a noticeable performance upgrade while retaining excellent street manners. Designed for L83 and L8B applications, this camshaft provides an aggressive idle sound, improved throttle response, and strong mid-range power while remaining compatible with stock converters when properly tuned. BTR developed this cam using extensive dyno and real-world testing to work within the Gen V platform’s piston-to-valve constraints while maintaining reliable operation. Ideal for daily-driven trucks and performance-oriented builds, the Truck Norris camshaft is a proven choice for enthusiasts seeking sound and performance without sacrificing drivability.

• Gen V–specific cam profile : Cam specs are 21x/22x duration, .540"/.540" lift, 111 LSA, and a +14% fuel lobe.
• Gen V Truck Performance Profile: Designed specifically for 2014–2019 5.3L L83 and L8B engines to maximize usable power within factory limitations.
• Aggressive Truck Norris Idle: Delivers the signature BTR Truck Norris sound while maintaining stable drivability with proper tuning.
• Stock Converter Friendly: Engineered to work well with factory converters, making it ideal for daily-driven trucks.
• Brian Tooley Racing Development: Backed by extensive Gen V testing to ensure reliable performance, compatibility, and repeatable results.