2011 Camaro RS LS Swap Build

The Vision

When I acquired this 2011 Camaro RS with a knocking motor, I saw an opportunity to transform it into a high-performance street machine. This LS swap project combines proper engineering, performance upgrades, and hands-on fabrication to create a 600+ HP capable build while maintaining reliability and drivability.

The Beginning

The project started with a 2011 Camaro RS that had a knocking motor. After removing the engine and transmission, I sourced a complete powertrain from a 2004 Chevy Silverado 2500 - specifically targeting the LQ4 6.0L iron-block V8 and 4L80E transmission known for their durability and performance potential.

Donor Powertrain: 2004 Silverado 2500

• LQ4 6.0L Iron Block V8 - Gen III LS engine known for strength and boost-friendly architecture
• 4L80E Transmission - Heavy-duty 4-speed automatic, originally configured for 4WD

Engine Build - BTR Performance Top End

The LQ4 received a comprehensive top-end rebuild using Brian Tooley Racing (BTR) performance components:

BTR Performance Components

• BTR Performance Camshaft - Custom grind for power and drivability
• BTR Lifters - High-performance hydraulic roller lifters
• BTR Valve Springs - Upgraded dual springs for higher lift and RPM
• BTR Pushrods - Hardened pushrods for increased strength
• New Head Gaskets - Multi-layer steel gaskets for reliability
• Trunnion Upgrade - Eliminates weak factory rocker arm trunnion bearings

Transmission Build - Stage 2 Package

• 4L80E Stage 2 Rebuild - 600+ HP rated components
• 4WD to 2WD Conversion - Output shaft and tailhousing modification
• Upgraded clutches, bands, and valve body
• Custom torque converter selection

Drivetrain & Rear End

• Upgraded rear axles from V8 model Camaro
• New bearings and seals
• V8 differential swap for proper gear ratio and strength

Exhaust & Performance Systems

• Long Tube Headers - Maximizing exhaust flow and performance
• Custom Exhaust System - Full custom exhaust fabrication
• Custom Engine Tuning - Professional dyno tuning for power and reliability

Fabrication & Fitment Challenges

Transmission Tunnel Modification

The 4L80E transmission requires tunnel modifications for proper fitment. Custom metalwork is needed to accommodate the larger transmission case while maintaining structural integrity.

Electrical Integration

• Stock Camaro Wiring Integration - Adapting factory wiring harness to work with donor LQ4
• Engine computer (ECM) integration and programming
• Gauge cluster communication and proper sensor mapping
• Emissions systems integration (if required)

Fuel System Modifications

• Stock Fuel Tank Integration - Adapting Camaro fuel system to LS engine requirements
• Fuel pump upgrade for increased flow demand
• Fuel line routing and fittings
• Return-style vs returnless fuel system considerations

Cooling & Accessories

• Radiator Upgrade - Proper cooling for 6.0L displacement
• Transmission Cooler - Additional cooling for Stage 2 4L80E
• New Accessories - Alternator, power steering pump, A/C compressor (if retained)
• Drive belt routing and tensioner setup

Current Status

The build is in the assembly phase with major components sourced and rebuilt. Current focus is on fabrication work including transmission tunnel modification, exhaust fitment, and wiring harness integration. The engine has been fully rebuilt with BTR performance components and the transmission is being prepared with the Stage 2 package and 4WD to 2WD conversion.

What's Next

• Complete transmission tunnel modification
• Finalize wiring harness integration
• Install exhaust system
• Cooling system installation and testing
• First startup and break-in procedure
• Dyno tuning and performance validation

Technical Skills & Engineering

This LS swap project demonstrates comprehensive automotive engineering and fabrication skills:

• Engine Building - Complete top-end rebuild with performance components, understanding valve train dynamics and engine timing
• Transmission Engineering - 4WD to 2WD conversion, understanding gear ratios and torque management for 600+ HP
• Fabrication & Metalwork - Transmission tunnel modification, custom exhaust work, maintaining structural integrity
• Electrical Systems Integration - Adapting factory wiring harness, ECM programming, sensor integration and communication protocols
• Fuel System Design - Flow calculations, pressure requirements, and safe fuel delivery for high-performance applications
• Cooling System Engineering - Thermal management for increased displacement and power output
• Drivetrain Upgrades - Rear differential selection, axle upgrades, ensuring components can handle target power
• Project Planning - Sourcing donor vehicles, budgeting, timeline management, and systematic build approach
• Problem Solving - Addressing fitment challenges, compatibility issues, and engineering solutions for custom applications
• Performance Tuning - Understanding engine management, fuel/ignition mapping, and dyno tuning principles

Why This Project Matters

This LS swap project showcases the intersection of mechanical engineering, electrical systems integration, and hands-on fabrication. It demonstrates systematic problem-solving, attention to detail, and the ability to execute a complex technical project from concept to completion. The skills developed through this build - from engine building to wiring integration to custom fabrication - directly translate to the problem-solving and systems-thinking required in software engineering and cybersecurity roles.

Following the Journey

This is an ongoing project with regular updates. Follow along on my blog for the latest progress, or subscribe to my newsletter to get build updates delivered to your inbox. I'll be documenting the entire build process including challenges, solutions, and final dyno results.