Description
Product Overview
The BTR Truck Norris NSR camshaft is engineered for 1999‑2013 GM Gen3/4 LS truck engines (4.8L, 5.3L, 6.0L, 6.2L). Featuring a machined exterior and a 212/22X .498″ lift and duration profile, this cam delivers a noticeable increase in low‑ and mid‑range torque while maintaining smooth idle quality. Weighing 11.33 lb and packaged in a compact 22.2 × 3.8 × 2.9 in box, it replaces the original cam without requiring additional valve springs, simplifying installation and reducing parts count.
Usage
Designed for both street and light‑track applications, the camshaft excels in daily‑driver trucks, work‑site pickups, and performance‑oriented SUVs. Its no‑springs‑required design shortens rebuild time, making it a practical choice for professional mechanics and DIY enthusiasts alike. 
Why Choose Us
BTR leverages decades of cam‑lobe design expertise, testing each profile on dyno rigs to ensure optimal power delivery and reliability. The Truck Norris NSR maintains the legendary “roundhouse kick” feel of the original Norris cam while offering the convenience of a spring‑free setup. Backed by a solid reputation and a 4.4‑star rating from 26 verified customers, this camshaft provides confidence in both performance and durability.
Key Features
- No springs required – reduces install time and parts inventory
- 212/22X .498″ lift and duration for strong low‑mid torque
- Machined exterior for precise fit and long‑term wear resistance
- Compatible with 4.8L, 5.3L, 6.0L, and 6.2L LS truck engines
- Proven BTR engineering with extensive dyno testing
FAQ
Do I need to replace valve springs when installing this cam?
No. The Truck Norris NSR camshaft is designed to work without additional valve springs, simplifying the rebuild process.
Will this cam affect my engine’s idle quality?
The cam is tuned to maintain a smooth idle while delivering increased torque in the low to mid RPM range, suitable for daily driving.
Is this cam compatible with aftermarket intake manifolds?
Yes, the cam works with most standard and performance intake manifolds used on 1999‑2013 LS truck applications.
What is the warranty coverage?
BTR provides a limited warranty covering manufacturing defects for a period of one year from the date of purchase.
Can I use this cam in a 6.2L LS3 engine?
Absolutely. The camshaft is engineered for the full range of LS truck engines, including the 6.2L LS3.




KANECJDL Camshaft Installation Tool Acrylic for 212cc
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