Brian Tooley Racing BTR Truck Norris Performance Camshaft

Description

The BTR Truck Norris Camshaft is one of the most iconic and best-performing truck cams on the market. Developed by Brian Tooley Racing for Gen III & IV LS truck engines, this camshaft provides serious gains in horsepower and torque — plus that aggressive, unmistakable “choppy” idle enthusiasts love.

Ideal for street and performance truck builds, the Truck Norris cam delivers strong mid-range and top-end power while still maintaining excellent drivability.

Specifications

• Intake Duration (@ .050″): 212°

• Exhaust Duration (@ .050″): 22X°

• Valve Lift (Intake/Exhaust): .552″/.552″

• Lobe Separation Angle (LSA): 107°

• Camshaft Type: Hydraulic Roller

• Operating Range: 4000–7000 RPM

• Gear Attachment: 3-Bolt

Engine Compatibility

• 4.8L / 5.3L / 5.7L / 6.0L / 6.2L LS engines

• Fits Gen III and Gen IV truck applications

• Designed for GM trucks and SUVs from 1999–2013 (Silverado, Sierra, Tahoe, Suburban, etc.)

Recommended Upgrades

To get the most from the Truck Norris Camshaft, we recommend:

• Valve Springs: Upgraded dual valve springs required

• Torque Converter: Minimum 2,400+ RPM stall recommended (for automatic transmissions)

• Tuning: ECU tuning required

• Cam Gear: Gen IV engines may need a 3-bolt conversion kit

Why Choose the Truck Norris Cam?

• Legendary cam profile known for power and aggressive sound

• Excellent drivability with noticeable idle lope

• Ideal for street, strip, and show builds

• Proven results in thousands of LS-based builds

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