TSP LS Truck Camshaft Kit – CHOPacabra (TSP CHOPacabra)

Overview

The TSP “CHOPacabra” Camshaft is built for one purpose—deliver aggressive sound and serious performance while retaining excellent drivability. Designed for cathedral port LS truck engines, this cam offers a strong powerband with a signature lope that stands out instantly.

Engineered to work with factory torque converters and proven through real-world testing, the CHOPacabra delivers impressive gains without requiring an overly complex setup.

Key Features

Aggressive chop with unmistakable idle sound
Strong horsepower and torque gains across the powerband
Broad RPM range with solid midrange and top-end pull
Designed for use with factory torque converters
Complete cam kit for simplified installation
Proven performance on stock 5.3L test platforms

Specifications

Duration @ .050": 214° / 222°
Lift (Valve): .550" / .550"
Lobe Separation Angle (LSA): 108°
Intake Centerline (ICL): 106°

Kit Includes

TSP CHOPacabra Camshaft
.560" Beehive Valve Springs
Valve Seal Set
7.400" Chomoly Replacement Pushrods
TSP Delphi LS7 Lifters & Trays
Installation Kit:
- Front cover seal
- Front main seal
- Water pump gaskets
- GM crankshaft bolt
YOUR CHOICE OF HEAD GASKETS

Recommended Setup

Engine Compatibility:
GM Gen III & IV LS Truck Engines (1999–2013)
4.8L / 5.3L / 5.7L with cathedral port heads
Supported Engine Codes:
LS1, LS6, LM7, L59, LY5, LMG, LMF, LH6, LC9, LR4, LY2, L20, L33, LH9, LM4
Compression Ratio: 9.5:1+ recommended
Torque Converter: Works with factory converters
Pushrod Length: 7.400" (included, verify during install)

Performance Characteristics

RPM Range: 1200 – 6500 RPM
Idle Quality: Aggressive chop
Power Gains: +67 HP / +26 lb-ft (crank, tested)
Drivability: Excellent street manners with strong performance character

Fitment Notes

Fits 1999–2013 GM LS-based trucks and SUVs (Silverado, Sierra, Tahoe, Yukon)
1-Bolt Cam Engines: Require 3-bolt conversion kit (sold separately)
DOD/AFM Engines: Conversion to non-DOD valley cover

Why Choose the CHOPacabra?

If you're after a cam that delivers both sound and performance, the CHOPacabra stands out. It offers aggressive idle characteristics with real horsepower gains—without sacrificing drivability or requiring a high-stall converter. This is one of the best “rowdy but usable” cam packages available for LS truck builds.