TSP CHOPacabra Truck Camshaft Kit for Gen 3/4 LS 5.3L/6.0L

The Texas Speed TSP CHOPacabra Truck Camshaft Kit is engineered to deliver an aggressive idle, distinctive sound, and significant performance gains for 1999-2013 GM Gen 3/4 LS-based engines (4.8L, 5.3L, 5.7L, 6.0L). This kit is designed to work with LS6 valve springs and a factory torque converter, providing a snarling idle and the power to match, making it an excellent choice for truck owners seeking a noticeable performance upgrade and a head-turning sound. Key specifications for the CHOPacabra camshaft include 214°/222° duration @ .050" lift, .550"/.550" lift, and a 108° LSA. Its low-lift advantage comes from proprietary lobe profiles designed to work with factory GM LS6 beehive valve springs, contributing to its affordability. Furthermore, the cam utilizes mild spring pressures and gentle ramp rates, which aid in extending valvetrain life, making it suitable for daily-driven trucks, even those with higher mileage. This kit is not legal for sale or use in California. It's important to note that DOD/AFM-equipped engines will require a DOD/AFM delete kit. Similarly, VVT engines will need a VVT delete kit. If your engine originally came with a 1-bolt camshaft, a 3-bolt conversion kit is necessary. For 6.2L engines and 2007-later rectangle port 6.0L engines, dual valve spring kits or equivalent (like PAC 1218) are recommended due to heavier valve weight. Installation notes indicate that while factory retainers, locks, seats, and seals can typically be reused, pushrod length should always be measured before installation. Adjustments may be necessary if switching to a different lifter style, such as in DOD delete applications. Tuning is required and highly recommended to achieve optimal performance and drivability.