Katech Gen V LT4 Street Attack Camshaft

Katech Gen V LT4 Street Attack Camshaft

Performance Camshaft for Gen V LT4 and LT5 Engines with OEM or Magnuson TVS2650 Superchargers.

The Katech Gen V LT4 Street Attack Camshaft is designed for LT4 and LT5 engine combinations equipped with OEM or aftermarket Magnuson TVS2650 superchargers. It offers an aggressive idle while remaining compatible with OEM torque converters.

The profile features 227°/242° intake and exhaust duration at .050", .649"/.658" valve lift with a 1.80:1 rocker ratio, a 116° lobe separation angle, and +2° specified camshaft advance. The fuel pump lobe is specified at 32% with 7.54mm lift.

Full VVT lockout or delete is recommended. Match the supporting valvetrain, fuel system, and ECU calibration to the completed engine and supercharger combination.

Features & Benefits

• Supercharged Application: Designed for LT4 and LT5 Engine Combinations with OEM or Magnuson TVS2650 Superchargers
• Aggressive Idle: Street Attack Profile with a Pronounced Idle Character
• OEM Torque Converter Compatibility: Designed to Work with OEM Torque Converters; Final Driveability Depends on the Complete Combination and Calibration
• 227°/242° Duration at .050": Specified Intake and Exhaust Duration
• .649"/.658" Valve Lift: Specified with a 1.80:1 Rocker Ratio
• 116° Lobe Separation Angle: Paired with +2° Specified Camshaft Advance
• 32% Fuel Pump Lobe: Features 7.54mm Fuel Pump Lobe Lift

Technical Specifications

Suggested Valvetrain

Suggested supporting components for the Katech Gen V LT4 Street Attack Camshaft include:

• Valve Springs: PSI1511 Valve Springs
• Lifters: GM LS7 Lifters or Johnson 2110-K Lifters
• Spring Locators: Katech Valve Spring Locators
• Retainers: Katech H13 Tool Steel Valve Spring Retainers or Katech Titanium Valve Spring Retainers

Contact Katech Technical Sales to confirm component selection for your cylinder heads, valve configuration, and intended operating range. Verify spring setup, pushrod length, and lifter preload during installation.

Fitment

Chevrolet:

• C7 Corvette Z06: LT4 Engine with OEM or Magnuson TVS2650 Supercharger
• C7 Corvette ZR1: LT5 Engine with OEM Supercharger
• 6th Gen Camaro ZL1: LT4 Engine with OEM or Magnuson TVS2650 Supercharger

For LT5 applications with an aftermarket Magnuson TVS2650 supercharger, or other Gen V LT engine combinations, contact Katech Technical Sales to confirm compatibility before ordering.

Important Installation Notes

• VVT Configuration: Full VVT Lockout or Delete Is Recommended
• Camshaft Timing: Verify Installed Timing Against the Cam Card; the Listed +2° Advance Is Separate from the VVT Configuration
• Piston-to-Valve Clearance: Check Clearance for the Completed Engine Combination
• Valve Spring Setup: Verify Installed Height, Spring Pressures, Coil Bind Clearance, and Retainer-to-Seal Clearance
• Pushrod Length & Lifter Preload: Verify During Installation
• Fuel Pump Setup: Verify Fuel Pump Preload and Compatibility with the 32% Fuel Pump Lobe
• Fuel System Capacity: Match Supporting Components to the Power Target and Fuel Type
• ECU Calibration: Custom Calibration Is Required for the Camshaft, Supercharger, and Supporting Components
• Torque Converter Selection: OEM Torque Converters Are Compatible; Evaluate the Complete Combination for Your Driveability Goals
• Professional Installation: Recommended for Proper Setup and Verification

Why Choose Katech

A supercharged street build needs a camshaft selected around its blower, transmission, and intended use. The Katech Gen V LT4 Street Attack Camshaft combines an aggressive idle profile with OEM torque converter compatibility for LT4 and LT5 combinations using OEM or Magnuson TVS2650 superchargers.

Katech has developed racing and performance engines since 1977. Our Optron Spin Cell valve motion analysis helps engineers evaluate valvetrain behavior and select supporting components for the intended engine package.

Contact Katech Technical Sales to discuss the Katech Gen V LT4 Street Attack Camshaft, your supercharger configuration, and the components needed to complete your build.

NOTE | The image shown is for illustrative purposes only and may not be an exact representation of the actual product.