TSP 1999-2013 GM 4.8L/5.3L LS Chopacabra Camshaft Package

The Texas Speed Chopacabra camshaft package for cathedral-port GM 4.8L and 5.3L truck engines. This single-purpose package is built for customers who want the signature aggressive Chopacabra idle without working through a larger camshaft selector.

Camshaft Profile

• 214/222 duration at .050 inch
• .550/.550-inch valve lift
• 108-degree lobe separation angle
• 106-degree intake centerline

Package Includes

• TSP 4.8L/5.3L CHOPacabra camshaft
• PAC-2568 .550-inch lift valve springs, set of 16

Valvetrain note: Factory retainers, locks, spring seats, seals and pushrods may be reusable depending on condition and application. Pushrod length and installed height must be measured during assembly.

DOD/AFM note: Factory-DOD Gen IV 5.3L engines require the TSP Gen IV 5.3L Complete DOD/AFM Delete Kit. The 4.8L does not use this delete kit, and non-DOD 5.3L engines do not require the conversion.

VVT note: VVT-equipped applications require the TSP Gen 4 LS VVT Delete Kit when using this fixed-timing camshaft.

Installation note: Verify cylinder-head port style, piston-to-valve clearance, pushrod length and timing-set compatibility before installation.

Tuning required: Professional calibration is mandatory after installation. No tune, tuning device, credits or remote tuning support is included.

Fitment: GM trucks and SUVs equipped with cathedral-port 4.8L or 5.3L LS engines. Not intended for rectangular-port or Gen 5 LT engines.

Local installation: North Texas High Performance can provide separately quoted installation and tuning for local customers.

Compare BTR LS truck alternatives

BTR Truck Norris — camshaft only · BTR Truck Norris NSR — camshaft only · BTR Weekend Warrior — camshaft kit

Compare like-for-like contents: Truck Norris and Truck Norris NSR links are camshaft-only listings; the TSP Chopacabra package includes its camshaft and PAC-2568 springs. NSR means no springs required for the cam's specified application; it does not make the cams interchangeable or eliminate application, clearance and calibration checks. The linked Chopacabra package is for cathedral-port 4.8L/5.3L LS truck engines, not Gen V LT or HEMI engines.