Hawks Motorsports is pleased to offer our clients the following Texas Speed & Performance Chopacabra LS Truck Camshaft Kit featuring the TSP-CHOPacabra low-lift truck camshaft together with SP011-16 LS6-style beehive valve springs, VS LS HAT KIT valve seals, and OE7400-16 7.400-inch stock-replacement pushrods.

Texas Speed specifies the TSP Chopacabra camshaft at 214/222 duration, .550"/.550" valve lift, 108-degree LSA, and 106-degree ICL. Designed for compatible 4.8L, 5.3L, 5.7L, and 6.0L LS engine combinations using cathedral-port cylinder heads, the Chopacabra delivers the aggressive, noticeably choppy idle character that has made this camshaft a popular choice for LS-powered truck applications.

Texas Speed lists an operating range of 1200-6500 RPM and a desired compression ratio of 9.5:1 or greater. According to Texas Speed, an aftermarket stall converter is not required, making the Chopacabra factory-converter friendly, and upgraded rear gearing is not required.

Texas Speed reports a dyno-tested increase of 67 horsepower and 26 lb-ft of torque at the crank over the tested stock camshaft combination. The published test combination used a stock Gen IV 5.3L engine with stock 862 cylinder heads, LS6-style valve springs, and a TBSS intake manifold. Actual power gains will vary depending on the engine combination, intake, exhaust, calibration, vehicle configuration, and supporting components.

The included SP011-16 LS6-style single beehive valve springs are rated for applications up to .560-inch valve lift, providing the upgraded spring capacity required for the Chopacabra's .550-inch valve lift.

The included VS LS HAT KIT provides hat-style valve seals for compatible LS applications using single beehive, stock-style, or compatible conical valve spring configurations.

Also included are OE7400-16 stock-replacement pushrods, featuring a 7.400-inch length and 5/16-inch diameter. Proper pushrod length should always be verified during engine assembly, particularly when cylinder heads, lifters, head gaskets, valve seats, or other valvetrain geometry has been changed.

KIT INCLUDES

• Texas Speed & Performance TSP-CHOPacabra low-lift truck camshaft
• SP011-16 LS6-style beehive valve spring set
• VS LS HAT KIT valve seal set
• OE7400-16 7.400-inch stock-replacement pushrod set

KEY FEATURES

• Genuine Texas Speed & Performance TSP-CHOPacabra truck camshaft
• Camshaft specifications: 214/222, .550"/.550", 108° LSA, 106° ICL
• Designed for compatible 4.8L, 5.3L, 5.7L, and 6.0L cathedral-port LS engine combinations
• Aggressive, noticeably choppy idle character
• Manufacturer-rated operating range: 1200-6500 RPM
• Desired compression ratio: 9.5:1 or higher
• Factory torque-converter friendly according to Texas Speed
• Upgraded rear gearing is not required according to Texas Speed
• Includes SP011-16 .560-inch LS6-style beehive valve springs
• Includes VS LS HAT KIT valve seals
• Includes OE7400-16 7.400-inch, 5/16-inch stock-replacement pushrods
• Texas Speed reports +67 HP and +26 lb-ft of torque at the crank under its published test conditions
• Tuning is required following installation of the aftermarket camshaft

APPLICATION & TECHNICAL SPECIFICATIONS

KIT PART NUMBERS

• TSP-CHOPacabra – Texas Speed & Performance Chopacabra camshaft
• SP011-16 – LS6-style beehive valve spring set
• VS LS HAT KIT – LS hat-style valve seal set
• OE7400-16 – 7.400-inch stock-replacement pushrod set

FITMENT

Verified Engine Application

Texas Speed specifies the TSP-CHOPacabra for compatible:

• 4.8L LS engines with cathedral-port cylinder heads
• 5.3L LS engines with cathedral-port cylinder heads
• 5.7L LS engines with cathedral-port cylinder heads
• 6.0L LS engines with cathedral-port cylinder heads

Verify cylinder-head configuration, valve-seal compatibility, lifter configuration, and required pushrod length for the specific engine combination before final assembly.

IMPORTANT INSTALLATION INFORMATION

The TSP-CHOPacabra is a 3-bolt camshaft. Applications originally equipped with a single-bolt Gen IV camshaft require the appropriate 3-bolt cam gear conversion components.

Tuning is required following installation.

Texas Speed currently states that the TSP-CHOPacabra camshaft is not legal for sale or use in the state of California.

FREQUENTLY ASKED QUESTIONS

What engines does the Texas Speed Chopacabra cam fit?

Texas Speed lists the TSP-CHOPacabra for compatible 4.8L, 5.3L, 5.7L, and 6.0L LS engines equipped with cathedral-port cylinder heads.

What are the Texas Speed Chopacabra cam specs?

The camshaft specifications are 214/222 duration, .550"/.550" valve lift, 108-degree LSA, and 106-degree ICL.

What comes with this Chopacabra cam kit?

This Hawks Motorsports package includes the TSP-CHOPacabra camshaft, SP011-16 LS6-style beehive valve springs, VS LS HAT KIT valve seals, and OE7400-16 7.400-inch stock-replacement pushrods.

Does the Chopacabra require upgraded valve springs?

Yes. The .550-inch-lift Chopacabra requires an appropriate upgraded valve spring. This package includes SP011-16 LS6-style beehive springs rated for applications up to .560-inch lift.

Does the Chopacabra cam require a stall converter?

Texas Speed states that an aftermarket stall converter is not required and describes the Chopacabra as factory-converter friendly.

Do I need different rear gears?

Texas Speed states that an upgraded rear gear is not required for the Chopacabra camshaft.

What RPM range is the Chopacabra designed for?

Texas Speed publishes an operating range of 1200-6500 RPM.

What compression ratio is recommended?

Texas Speed lists a desired compression ratio of 9.5:1 or greater.

Does the Chopacabra require tuning?

Yes. Proper engine calibration is required after installing this aftermarket camshaft.

Are 7.400-inch pushrods included?

Yes. This kit includes OE7400-16 7.400-inch stock-replacement pushrods. Required pushrod length should still be measured and verified during assembly because engine and valvetrain modifications can alter required pushrod length.