COMP CAM 54-600-11 THUMPR 219/233 Camshaft Install Rebuild Kit w/ GM 12499225 Lifters | .553″/.536″ | FITS: Chevy 5.3L 4.8L LS LR4 LM7 L33 LMG LC9 LY5 | Choppy/Thumping Idle | MADE IN USA

Description

The Competition Cams 54-600-11 hydraulic roller camshaft brings a strong, aggressive power upgrade to GM LS Gen III/IV engines, ideal for street-performance or light strip builds. With .553″ intake / .536″ exhaust valve lift, this cam lets your engine inhale and exhale more air/fuel mixture, giving noticeable increases in power and responsiveness. As soon as you press the gas, expect sharper throttle response and a more energetic feel from idle to WOT.

The cam’s 219° intake / 233° exhaust duration at .050″ gives the valves extra time open during each cycle — this improves cylinder filling and combustion efficiency, resulting in stronger mid-range torque and better throttle response across the RPM band. During everyday driving or spirited runs, the engine will feel more alive and pull harder than stock.

With a 109° lobe separation angle (LSA), 54-600-11 delivers a raw, throaty, performance-cam idle and solid exhaust tone under throttle. Once tuned, you’ll enjoy a bold engine character with enough control for street use — perfect for drivers who want a “built” engine feel without losing usability.

If your LS build includes upgraded heads, headers, exhaust or intake — or if you simply want a stronger, more aggressive engine without going to a full race setup — this camshaft offers a balanced upgrade. The 54-600-11 blends increased power, better responsiveness, and an unmistakable performance sound that transforms how the car feels, sounds, and drives.

Manufacturer: COMP CAM REDLINE USA
Model: COMP CAM INSTALL REBUILD KIT
Included components: Guaranteed to fit and meet the specifications of the OE parts being replaced
Warranty: LIFETIME – IF INSTALLED BY A CERTIFIED MACHINIST