Katech Stage 4 C7 ZR1 Corvette 1200HP Installed Performance Package
Price: $33999.99
Power Target: 1200HP
Description
Katech C7 ZR1 Corvette Stage 4 1200HP Installed Performance Package
1,200 HP Supercharged LT5 Performance with Katech CNC-Ported Supercharger, CNC-Ported Cylinder Heads, Performance Camshaft, Upgraded Fuel System, and Flex-Fuel Calibration!
Professionally Installed and Dyno-Tested 1,200 HP Performance for the GM LT5
The Katech C7 ZR1 Corvette Stage 4 1200HP Installed Performance Package is an extensive high-performance upgrade designed to deliver 1,200 horsepower from the supercharged GM LT5 6.2L V8. Developed specifically for the 2019 Chevrolet Corvette ZR1, this package combines precision CNC machining, upgraded induction and supercharger drive components, a performance camshaft, CNC-ported cylinder heads, a comprehensive fuel system upgrade, and professional flex-fuel calibration.
At the center of the Stage 4 package is the factory LT5 supercharger, enhanced with Katech CNC porting to increase airflow capacity. A Roto-Fab Big Gulp 5-inch intake, Katech billet 112mm throttle body, 112mm throttle body adapter, and extension harness provide a high-flow induction path into the modified supercharger. A GripTec 2.70-inch upper pulley, ATI LT5 damper, ATI 5% overdrive supercharger pulley, and Gates HD belt support increased supercharger speed and the airflow demands of the 1,200HP combination.
Inside the engine, a Katech K-Force 3 camshaft or LT5 Race camshaft is paired with Katech CNC-ported cylinder heads, a 5-angle competition valve job, valve job hand blending, PSI 1516 valve springs, Katech tool steel retainers, upgraded lifters, and precision-fit pushrods. ARP head bolts, GM Gen V LT5 head gaskets, and upgraded timing components complete the supporting engine modifications.
To support the increased fuel demands of the Stage 4 combination, the package includes a DSX auxiliary fuel pump with pump upgrade, DSX ZR1 flex-fuel kit, Katech high-flow LT5 fuel line kit, and Injector Dynamics 1050X port injectors. These components are integrated with professional flex-fuel tuning to support the specified high-output configuration.
Required Upgrade: Aftermarket performance headers are required for the Stage 4 1200HP package. Headers are not included in the standard package price and must be purchased separately. Compatible headers are available as an add-on through Katech Engineering.
Stage 4 also includes HP Tuners unlock services for the E99 ZR1 engine control module, FICM, and T87A transmission controller, along with baseline dyno testing, chassis dyno calibration, flex-fuel tuning, and street drivability calibration. The result is a professionally installed performance package engineered for owners seeking exceptional output from the LT5-powered Corvette ZR1.
Specifications
| Vehicle Platform | 2019 Chevrolet Corvette C7 ZR1 |
| Engine Platform | GM LT5 6.2L Supercharged V8 |
| Engine Configuration | Supercharged |
| Supercharger System | Factory LT5 Supercharger with Katech CNC Porting |
| Package Output | 1,200 HP with Required Supporting Headers and Appropriate Fuel |
| Cold Air Intake | Roto-Fab Big Gulp 5-Inch Intake |
| Throttle Body | Katech Billet 112mm |
| Camshaft | Katech K-Force 3 or LT5 Race Camshaft |
| Cylinder Heads | Katech CNC-Ported LT5 Cylinder Heads |
| Upper Supercharger Pulley | GripTec 2.70-Inch |
| Lower Supercharger Drive | ATI LT5 Damper and 5% Overdrive Supercharger Pulley |
| Fuel System | DSX Auxiliary Pump with Pump Upgrade, Katech High-Flow LT5 Fuel Lines, Injector Dynamics 1050X Port Injectors |
| Flex-Fuel System | DSX ZR1 Flex-Fuel Kit |
| Required Supporting Upgrade | Aftermarket Performance Headers – Required, Not Included |
| ECU | GM E99 with HP Tuners Unlock |
| Additional Controller Unlocks | HP Tuners FICM Unlock and T87A Transmission Controller Unlock |
| Package Type | Stage 4 Supercharger, Cylinder Head, Camshaft, Fuel System and Flex-Fuel Calibration Package |
| Installation | Performed by Katech Engineering, Clinton Township, Michigan |
| Chassis Dyno Calibration | Included |
| Flex-Fuel Tuning | Included |
| Street Drivability Calibration | Included |
| Limited Warranty | 1 Year / 12,000 Miles – See Terms for Details |
Performance Highlights
- 1,200 HP Supercharged LT5 Performance with Required Supporting Headers and Appropriate Fuel
- Designed Specifically for the 2019 C7 Corvette ZR1
- Factory LT5 Supercharger with Katech CNC Porting
- Roto-Fab Big Gulp 5-Inch Intake
- Katech Billet 112mm Throttle Body
- Katech 112mm Throttle Body Adapter and Extension Harness
- GripTec 2.70-Inch Upper Supercharger Pulley
- ATI LT5 Damper and 5% Overdrive Supercharger Pulley
- Gates HD Supercharger Belt
- Katech K-Force 3 or LT5 Race Camshaft
- Katech CNC-Ported LT5 Cylinder Heads
- Katech 5-Angle Competition Valve Job and Hand Blending
- PSI 1516 Valve Springs
- Katech Tool Steel Intake and Exhaust Retainers
- Katech Steel Intake and Exhaust Spring Locators
- Katech-Spec Johnson 2110-K Lifters
- Trend 3/8-Inch, .080-Wall Pushrods Measured to Fit
- Katech C5R Timing Chain and Timing Chain Guide
- Katech Billet VVT Delete Front Cover Kit
- ARP Head bolt Kit
- DSX Auxiliary Fuel Pump with Pump Upgrade
- DSX ZR1 Flex-Fuel Kit
- Katech High-Flow LT5 Fuel Line Kit
- Injector Dynamics 1050X Port Injectors
- Professional Flex-Fuel Calibration
- Katech Billet Thermostat Housing and 160-Degree Thermostat
- Aftermarket Performance Headers Required – Not Included
- HP Tuners E99 ZR1 ECU Unlock
- HP Tuners FICM Unlock
- HP Tuners T87A Transmission Controller Unlock
- HP Tuners Credits Included
- Baseline Dyno Testing
- Chassis Dyno Calibration and Validation
- Street Drivability Calibration
- C7 ZR1 Corvette Katech Serialized Plaque
- Professional Installation by Katech Engineering
- 1-Year / 12,000-Mile Katech Limited Warranty
Is This Package Right for You?
The Stage 4 1200HP Installed Performance Package is designed for 2019 Corvette ZR1 owners seeking extreme supercharged horsepower while retaining the factory LT5 supercharger architecture. By combining extensive CNC porting, a large 112mm induction system, aggressive supercharger pulley configuration, CNC-ported cylinder heads, a performance camshaft, and comprehensive fuel system upgrades, Stage 4 delivers a substantial increase in performance capability over conventional intake, pulley, and camshaft packages.
This package is intended for enthusiasts who prioritize high horsepower, strong acceleration, increased high-RPM performance, and the flexibility of a professionally calibrated flex-fuel system. The combination of Katech CNC machining, premium valvetrain components, upgraded fuel delivery, and professional dyno calibration creates an extensive LT5 performance solution.
Please Note: Aftermarket performance headers are required to complete the Stage 4 1200HP configuration. Headers are not included in the standard package price and are available for purchase separately through Katech Engineering.
- 1,200 HP Supercharged Performance with Required Supporting Components
- Substantial Horsepower and Torque Gains
- Increased Supercharger and Induction Airflow
- Improved Cylinder Head Airflow
- Stronger Mid-Range and High-RPM Performance
- Aggressive Performance Camshaft Sound and Character
- Enhanced Throttle Response
- Upgraded Valvetrain and Timing Components
- Upgraded Upper and Lower Supercharger Drive System
- Comprehensive Fuel System Upgrades
- Flex-Fuel Capability and Professional Calibration
- Retains the Factory LT5 Supercharger
- Professional Installation and Controller Unlock Services
- Dyno Testing and Street Drivability Calibration
What's Included
Airflow and Induction System
- Roto-Fab Big Gulp 5-Inch Intake
- Katech Billet 112mm Throttle Body
- Katech 112mm Throttle Body Adapter
- Katech Throttle Body Extension Harness
Supercharger Airflow Upgrades
- Katech CNC-Ported LT5 Supercharger
Supercharger Drive System
- GripTec 2.70-Inch Supercharger Pulley
- ATI LT5 Damper
- ATI 5% Overdrive Supercharger Pulley
- Gates HD Supercharger Belt
Cylinder Head System
- Katech CNC-Ported LT5 Cylinder Heads
- Katech 5-Angle Competition Valve Job
- Katech Valve Job Hand Blend
- Cylinder Head Deck Machining
- GM Gen V LT5 Head Gaskets
- ARP Head bolt Kit
Camshaft and Valvetrain
- Katech K-Force 3 Camshaft or LT5 Race Camshaft
- PSI 1516 Valve Springs
- Katech Tool Steel Intake Retainers
- Katech Tool Steel Exhaust Retainers
- Katech Steel Intake Locators
- Katech Steel Exhaust Locators
- Katech-Spec Johnson 2110-K Lifters
- Trend 3/8-Inch, .080-Wall Pushrods, Measured to Fit
- GM Lifter Trays
Timing System and VVT Delete Components
- Katech C5R Timing Chain
- Katech Timing Chain Guide
- Katech Billet VVT Delete Front Cover Kit
Fuel System and Flex-Fuel Upgrades
- DSX Auxiliary Pump with Pump Upgrade
- DSX ZR1 Flex-Fuel Kit
- Katech High-Flow LT5 Fuel Line Kit
- Injector Dynamics 1050X Port Injectors
- Flex-Fuel Tuning
Cooling System Upgrades
- 160-Degree Thermostat
- Katech Billet Thermostat Housing
Engine Components, Fluids and Supporting Hardware
- GM Brake Fluid
- GM Oil Filter
- Mobil 1 0W-40 Engine Oil
- GM LS Front Seal
- Brisk Racing 14 Spark Plugs
- GM Damper Bolt
- GM Torque Converter or Flywheel Bolts, as Applicable
- O2 Plug
- Wideband O2 Bung
- O2 Washer
- Miscellaneous Shop Supplies
Controller Unlocks, Calibration and Validation
- HP Tuners E99 ZR1 ECU Unlock
- HP Tuners FICM Unlock
- HP Tuners T87A Transmission Controller Unlock
- HP Tuners Credits
- Baseline Dyno
- Chassis Dyno Calibration
- Flex-Fuel Tuning
- Street Drivability Calibration
Installation, Finishing Details and Warranty
- Professional Installation
- C7 ZR1 Corvette Katech Serialized Plaque
- 1-Year / 12,000-Mile Katech Limited Warranty – See Terms for Details
Required Upgrade – Not Included
- Aftermarket Performance Headers – Required for the Stage 4 1200HP Package
Headers are not included in the standard package price. They must be purchased separately or an existing compatible header system must be approved by Katech Engineering.
The Katech Installation Process
Vehicle Inspection
Each vehicle is inspected before installation begins to identify mechanical concerns or existing modifications that should be evaluated before proceeding with the Stage 4 performance package. Supporting fuel system, cooling, exhaust, and drivetrain considerations may also be reviewed.
Baseline Dyno Testing
Baseline chassis dyno testing is performed before modifications to document incoming vehicle performance and establish a reference point for evaluating the completed package.
Cylinder Head Preparation
The LT5 cylinder heads receive Katech CNC porting, a 5-angle competition valve job, valve job hand blending, and cylinder head deck machining. These modifications are designed to improve cylinder head airflow and support the increased performance demands of the Stage 4 combination. GM Gen V LT5 head gaskets and an ARP head bolt kit are included for engine reassembly.
Camshaft and Valvetrain Installation
The Katech K-Force 3 or LT5 Race camshaft is installed with PSI 1516 valve springs, Katech tool steel intake and exhaust retainers, steel valve spring locators, Katech-spec Johnson lifters, and Trend pushrods measured for proper fitment. These components support the operating requirements of the upgraded camshaft and high-output LT5 engine.
Timing System and VVT Delete Installation
The timing configuration is upgraded with the Katech C5R timing chain, Katech timing chain guide, and Katech billet VVT delete front cover kit. These components support the upgraded camshaft and timing system configuration.
Supercharger CNC Porting and Induction Upgrades
The factory LT5 supercharger receives Katech CNC porting to improve airflow through the supercharger system. A Roto-Fab Big Gulp 5-inch intake, Katech billet 112mm throttle body, 112mm adapter, and throttle body extension harness complete the high-flow induction system.
Supercharger Drive System Installation
The supercharger drive system is upgraded with a GripTec 2.70-inch upper pulley, ATI LT5 damper, ATI 5% overdrive supercharger pulley, and Gates HD belt. These components support the increased supercharger speed and airflow demands of the 1,200HP performance combination.
Fuel System and Flex-Fuel Upgrades
The Stage 4 package includes installation of a DSX auxiliary fuel pump with pump upgrade, DSX ZR1 flex-fuel kit, Katech high-flow LT5 fuel line kit, and Injector Dynamics 1050X port injectors. These components increase fuel delivery capability and provide the hardware required for professional flex-fuel calibration of the specified performance combination.
Required Performance Headers
Aftermarket performance headers are required for the Stage 4 1200HP configuration. These headers complement the increased airflow from the modified supercharger, cylinder heads, and camshaft by supporting improved exhaust flow. Headers are not included in the standard package price. Customers must purchase compatible headers separately or have existing headers approved by Katech Engineering before installation.
Cooling System Upgrades
A Katech billet thermostat housing and 160-degree thermostat are installed as part of the package, with GM Dex-Cool coolant included for cooling system service.
HP Tuners Controller Unlocks
The Stage 4 package includes HP Tuners unlock services for the E99 ZR1 engine control module, FICM, and T87A transmission controller. These services provide access for applicable calibration work, with HP Tuners credits also included.
Flex-Fuel and ECU Calibration
Following installation and the required controller unlocks, Katech develops custom calibration appropriate for the Stage 4 1200HP combination. Calibration accounts for the CNC-ported LT5 supercharger, 112mm induction system, upgraded camshaft, CNC-ported cylinder heads, modified supercharger drive system, upgraded fuel delivery components, flex-fuel system, and required headers.
Dyno Calibration and Validation
After installation, the vehicle receives chassis dyno calibration and performance validation. Dyno testing is used to evaluate the completed package, refine calibration, and compare performance against the original baseline results. Calibration and performance evaluation are performed using fuel appropriate for the intended operating configuration.
Street Drivability Calibration
Following dyno calibration, the vehicle receives street drivability calibration to refine throttle response, idle quality, part-throttle operation, and general driving characteristics. Particular attention is given to the upgraded camshaft, increased supercharger output, and fuel system configuration.
The Katech Difference
Katech Engineering has been developing, machining, assembling, and validating high-performance engines and components since 1977. From professional motorsports programs to premium street performance packages, Katech focuses on complete engineered systems rather than random combinations of parts.
The Stage 4 1200HP package combines Katech's engine development, CNC machining, cylinder head preparation, high-performance fuel system integration, professional installation, and calibration capabilities to deliver an extensive LT5 performance combination.
Every Katech Installed Performance Package is built around professional installation, calibration, validation, and support from the Katech team.
Required Upgrade: Performance Headers
Aftermarket performance headers are required for the Katech Stage 4 C7 ZR1 1200HP Performance Package.
The increased airflow demands of the CNC-ported LT5 supercharger, 112mm induction system, upgraded camshaft, and CNC-ported cylinder heads make improved exhaust flow an important part of the intended 1,200HP configuration. Performance headers help reduce exhaust restriction and complement the engine's upgraded airflow capabilities.
Headers are not included in the standard Stage 4 package price. Customers must purchase compatible headers separately or have an existing header system approved by Katech Engineering. Contact a Katech Performance Specialist for header options, pricing, compatibility, and installation arrangements.
Additional Upgrades Available
Additional performance upgrades and supporting components are available for the Stage 4 C7 ZR1 Corvette package. Contact Katech Sales to discuss available options, vehicle-specific requirements, and custom performance goals.
Please contact Katech Sales for additional upgrade options and pricing.
Frequently Asked Questions
▾ Does this package include installation?
Yes. Installation of the listed package components is included. Required aftermarket headers are not included; confirm header selection and installation arrangements with Katech Engineering.
▾ How much horsepower does the Stage 4 package make?
The Stage 4 package is rated at 1,200 engine horsepower with the required supporting headers, appropriate fuel, and specified performance configuration. Actual output may vary based on fuel quality, vehicle condition, environmental conditions, and other factors.
▾ What vehicles are compatible with this package?
This package is designed specifically for the 2019 Chevrolet Corvette C7 ZR1 equipped with the factory-supercharged GM LT5 6.2L V8 engine.
▾ Does this package replace the factory supercharger?
No. The Stage 4 package retains the factory LT5 supercharger and enhances it with Katech CNC porting, a larger induction system, and upgraded upper and lower supercharger drive components.
▾ What is the difference between Stage 3 1000HP and Stage 4 1200HP?
Stage 3 features a CNC-ported LT5 supercharger, 112mm throttle body, CNC-ported cylinder heads, performance camshaft, and upgraded supercharger drive components. Stage 4 builds on that combination with a Roto-Fab Big Gulp 5-inch intake, GripTec 2.70-inch upper pulley, ARP head studs, DSX auxiliary fuel pump and pump upgrade, DSX ZR1 flex-fuel kit, Katech high-flow fuel lines, Injector Dynamics 1050X port injectors, and flex-fuel calibration to support the 1,200HP performance target.
▾ What camshaft is included with the Stage 4 package?
The package includes a Katech K-Force 3 camshaft or LT5 Race camshaft. Contact Katech Engineering to discuss the appropriate camshaft selection for your performance goals and intended vehicle use.
▾ Does this package include CNC-ported cylinder heads?
Yes. The package includes Katech CNC cylinder head porting, a 5-angle competition valve job, valve job hand blending, and cylinder head deck machining.
▾ What fuel system upgrades are included?
The package includes a DSX auxiliary pump with pump upgrade, DSX ZR1 flex-fuel kit, Katech high-flow LT5 fuel line kit, and Injector Dynamics 1050X port injectors. These components support the fuel delivery demands of the Stage 4 combination.
▾ Does this package support flex-fuel operation?
Yes. The package includes a DSX ZR1 flex-fuel kit and professional flex-fuel tuning. Fuel compatibility, approved ethanol content, and operating requirements should be confirmed with Katech Engineering.
▾ Can this package make 1,200 horsepower on pump gasoline?
The advertised 1,200HP output applies to the specified performance configuration and appropriate fuel. Contact Katech Engineering for the fuel requirements associated with the 1,200HP rating. The same output should not be assumed on every gasoline or ethanol blend.
▾ Why does Stage 4 use a GripTec 2.70-inch pulley?
The GripTec 2.70-inch upper pulley is designed to increase supercharger speed compared with larger upper pulley configurations. It works with the ATI 5% overdrive lower supercharger drive system to support the increased boost potential of the Stage 4 package.
▾ Why are ARP head studs included?
The Stage 4 package uses an ARP head stud kit as part of the cylinder head installation. The studs provide upgraded cylinder head fastening hardware appropriate for the high-output LT5 combination.
▾ Are headers required for the Stage 4 1200HP package?
Yes. Aftermarket performance headers are required for the Katech Stage 4 C7 ZR1 1200HP Performance Package. They are a required supporting component for the intended 1,200HP configuration.
▾ Are headers included in the package price?
No. Headers are not included in the standard Stage 4 package price. Compatible headers must be purchased separately or an existing header system must be approved by Katech Engineering.
▾ Can I use headers already installed on my ZR1?
Potentially. Contact Katech Engineering to confirm whether your existing headers meet the requirements of the Stage 4 1200HP package. Compatibility and suitability should be verified before installation and calibration.
▾ Why are the E99 ECU, FICM, and T87A controller unlocks included?
The package includes HP Tuners unlock services for the E99 engine control module, FICM, and T87A transmission controller. These unlocks provide access for applicable calibration work. Controller-specific requirements and compatibility should be confirmed with Katech.
▾ Will my C7 ZR1 sound different after installation?
Yes. The upgraded camshaft produces a more aggressive idle and engine character compared to the factory LT5. The Roto-Fab Big Gulp intake, CNC-ported supercharger, and upgraded pulley system may increase induction and supercharger sounds. Required aftermarket headers may also change the exhaust sound.
▾ Is the advertised horsepower figure measured at the rear wheels?
No. The advertised 1,200 horsepower figure represents engine horsepower rather than rear-wheel horsepower.
▾ Is tuning included?
Yes. The package includes HP Tuners controller unlocks, HP Tuners credits, chassis dyno calibration, flex-fuel tuning, and street drivability calibration.
▾ Is baseline dyno testing included?
Yes. Baseline chassis dyno testing is included to document vehicle performance before installation and provide a reference for evaluating the completed package.
▾ Are additional upgrades available?
Yes. Additional upgrades and supporting components are available. Contact Katech Sales to discuss options, compatibility, and pricing.
▾ Does this package include a warranty?
Yes. The Stage 4 package includes a 1-year / 12,000-mile Katech limited warranty. See Katech warranty terms and conditions for complete coverage details, limitations, and exclusions.
Important Information
Package contents may vary as engineering improvements and component updates become available. Advertised horsepower represents engine horsepower for the specified package configuration, including required supporting headers and appropriate fuel. Actual results may vary based on vehicle condition, fuel quality, ethanol content, environmental conditions, and other factors.
Required Headers: Aftermarket performance headers are required for the Stage 4 1200HP package. Headers are not included in the standard package price. Compatible headers must be purchased separately or an existing header system must be approved by Katech Engineering. Header compatibility and installation arrangements should be confirmed before package installation.
Fuel Requirements: The 1,200HP performance rating depends on the specified fuel and calibration configuration. Although the package includes a flex-fuel system, customers should confirm approved fuel types, ethanol content, and performance expectations with Katech Engineering.
The Stage 4 package includes extensive internal engine modifications, including cylinder head machining, camshaft replacement, upgraded valvetrain components, and VVT modifications. Engine sound, idle characteristics, thermal demands, and operating behavior will differ from the factory configuration.
Emissions compliance and eligibility for public-road use depend on applicable federal, state, and local regulations. Customers should confirm compliance requirements before purchase and installation, including for required aftermarket headers.
The HP Tuners E99 ECU, FICM, and T87A transmission controller unlocks are included as part of the package. Controller unlocking and calibration may affect factory software functionality, manufacturer warranty coverage, and future dealership programming procedures. Applicable controller requirements may vary by vehicle configuration.
Additional supporting modifications may be recommended based on vehicle condition, intended use, and performance goals. Contact Katech Engineering to discuss cooling requirements, drivetrain considerations, and available additional upgrades.
If additional repairs or recommendations are identified during inspection or installation, Katech will contact the customer before performing additional work.
The included 1-year / 12,000-mile Katech limited warranty is subject to applicable Katech warranty terms, conditions, limitations, and exclusions. See warranty terms for complete details.
Please contact a Katech Performance Specialist for current pricing, scheduling availability, compatibility, camshaft selection, required headers, fuel requirements, and additional package options.
Ready to Upgrade Your C7 ZR1 Corvette?
Contact Katech Engineering to discuss your performance goals and schedule your C7 ZR1 Corvette Stage 4 1200HP Installed Performance Package. Our team can assist with selecting the required aftermarket performance headers and discussing additional upgrades available for your vehicle.
Call: (586) 791-4120
Email: sales@katechengines.com
Details
- KAT-C7ZR1-4
- KAT-C7ZR1-4
- Katech Engineering
- New
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