COMP Cams GM Gen IV LS VVT/AFM Camshaft Part Number 189-426-13

Great choice for max effort VVT street engines, great high RPM power. Higher lift takes full advantage of ported heads. Works with GM 12606358 VVT-Solenoid only. This camshaft works with VVT-Only cars, and it also deletes AFM in cars originally equipped with VVT and AFM (must have 12606358 solenoid). Chevrolet: Express Pasajeros 17 - 18 6 L Engine, Chevrolet: LCF 3500 16 - 17 6 L Engine, Chevrolet: Suburban 3500 HD 16 - 19 6 L Engine, Chevrolet: Express Cargo 17 - 17 6 L Engine, GMC: Sierra 08 - 16 6.2 L Engine, Chevrolet: Express 2500 10 - 19 6 L Engine, GMC: Yukon 10 - 13 6 L Engine, GMC: Sierra 3500 HD 10 - 19 6 L Engine, Chevrolet: Suburban 2500 10 - 13 6 L Engine, Chevrolet: Suburban 1500 08 - 14 5.3 L Engine, GMC: Yukon 09 - 10 5.3 L Engine, Chevrolet: Express 3500 10 - 19 6 L Engine, Hummer: H3 10 - 10 5.3 L Engine, Chevrolet: Express Pasajeros 10 - 15 5.3 L Engine, Chevrolet: Tahoe 09 - 11 5.3 L Engine, Cadillac: Escalade 10 - 13 6 L Engine, Chevrolet: Silverado 1500 10 - 13 6 L Engine, Chevrolet: Colorado 10 - 12 5.3 L Engine, GMC: Canyon 10 - 12 5.3 L Engine, Cadillac: Escalade 08 - 16 6.2 L Engine, GMC: Sierra 1500 08 - 13 5.3 L Engine, GMC: Savana 3500 10 - 19 6 L Engine, GMC: Savana 3500 10 - 17 4.8 L Engine, Chevrolet: Tahoe 10 - 13 6 L Engine, Cadillac: Escalade EXT 08 - 13 6.2 L Engine, GMC: Sierra 2500 HD 10 - 19 6 L Engine, Chevrolet: Silverado 1500 08 - 13 5.3 L Engine, GMC: Yukon XL 1500 08 - 14 6.2 L Engine, GMC: Sierra 1500 08 - 13 6.2 L Engine, Chevrolet: Avalanche 08 - 13 5.3 L Engine, Chevrolet: Silverado 1500 09 - 13 6.2 L Engine, GMC: Yukon 08 - 14 6.2 L Engine, Cadillac: Escalade ESV 08 - 16 6.2 L Engine, GMC: Savana 2500 10 - 19 6 L Engine, Hummer: H2 08 - 09 6.2 L Engine, GMC: Sierra 1500 10 - 13 4.8 L Engine, GMC: Yukon XL 2500 10 - 13 6 L Engine, Chevrolet: Tahoe 08 - 09 6.2 L Engine, Chevrolet: Silverado 1500 10 - 13 4.8 L Engine, Chevrolet: Camaro 10 - 15 6.2 L Engine, GMC: Sierra 1500 10 - 13 6 L Engine, Chevrolet: Suburban 16 - 19 6 L Engine, GMC: Savana 1500 08 - 14 5.3 L Engine, Chevrolet: Silverado 2500 HD 10 - 19 6 L Engine, Chevrolet: Silverado 3500 HD 10 - 19 6 L Engine, GMC: Savana 2500 10 - 17 4.8 L Engine, Hummer: H3T 10 - 10 5.3 L Engine, GMC: Yukon XL 1500 08 - 14 5.3 L Engine, Chevrolet: Silverado 3500 15 - 18 6 L

The COMP Cams GM Gen IV LS VVT/AFM Camshaft (Part Number 189-426-13) is designed to optimize high RPM power for maximum effort Variable Valve Timing (VVT) street engines. Its higher lift profile takes full advantage of ported cylinder heads, resulting in improved airflow and horsepower at higher engine speeds. This camshaft is specifically engineered to work with GM 12606358 VVT solenoids, making it an ideal upgrade for vehicles equipped with VVT-only systems or those seeking to delete Active Fuel Management (AFM) in compatible engines. Installation of this camshaft provides a notable increase in performance, especially in applications where high RPM power is prioritized, such as street performance builds and racing setups.