How To Swap LS Engines Into Chevelles & GM A-Bodies
How To Swap LS Engines Into Chevelles & GM A-Bodies

How To Swap LS Engines Into Chevelles & GM A-Bodies

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How To Swap LS Engines Into Chevelles & GM A-Bodies
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Make swapping a GM LS Engine into your 1964-1972 Chevelle or other GM A-Body as smooth as possible by learning the essential procedures, solutions to common problems, and time-saving techniques.
Jefferson Bryant, author of LS Swaps: How To Swap GM LS Engines into Almost Anything, has performed many LS swaps throughout his career and has transplanted the LS into several A-Body cars. In this comprehensive guide, he provides detailed step-by-step instructions for installing an LS powerplant into a Chevelle, Buick GS, Oldsmobile Cutlass, and Pontiac GTO. To successfully install an LS engine, you need to select or fabricate motor mounts and adapter plates to mount the engine to the chassis. Also, you need to integrate the electronic engine controls and wiring harness to the A-Body car. If you run a fuel-injection system, a new tank or high-pressure fuel pump, fuel lines, and related equipment must be installed. Bryant covers all of these crucial steps and much more. In addition, he performs a new LT swap into an A-Body car.
The GM LS engine has revolutionized the muscle car and the high-performance V-8 market. It has become a favorite engine to swap into classic cars because it offers a superior combination of horsepower, torque, and responsiveness in a compact package. As such, these modern pushrod V-8 engines are installed in vintage GM muscle cars with relative ease, and that includes Chevelles and other popular GM A-Body cars. In fact, General Motors manufactured about 500,000 Chevelles and A-Body cars between 1968 and 1970 alone.
Swapping an LS engine into an A-Body is made much easier with a comprehensive guidebook such as this, whether you plan on doing it yourself or decide to have a shop do it for you. A huge and thriving aftermarket provides a wide range of suspension, brake, steering, chassis, and other parts that produce functional improvements. Before you tackle your LS Swap project, arm yourself with this vital information to guide you through the process.

Chapter 1: Modern V-8 Masterpieces: The LS- and LT-Series Engine 

Gen III: A Revolution in V-8 Performance 
Gen IV: Improving the Legend 
Gen V: The LT-Series 
Engine Swap Projects 
Performance Project: The “Take-Out” Procedure for a Vortec 5.3-Liter Salvage Yard Engine 

Chapter 2: Motor Mounts 
Chevy Adapter Mounts for the A-Body 
LS Frame Stands 
Transmission Mounts 
Performance Project: Choosing a Driveline 

Chapter 3: Oil Pans, Pan Modifications and Aftermarket Offerings 
Stock Oil Pans 
Gen V Oil Pans 
Aftermarket Gen III/IV Oil Pans 
Performance Project: Modifying a Crossmember for Oil Pan Clearance 

Chapter 4: Accessory Drives and Cooling Systems 
LT Engine Series 
Vehicle Fitment with Stock Accessory Drives 
Aftermarket Drives 
Cooling Systems 
Performance Project: Adding Power Steering to a 2014-up LT-Series Engine 

Chapter 5: Transmissions 
Automatic Transmissions 
Manual Transmissions 
Performance Project: 3- to 4-Speed Floor Shifter Conversion 
Performance Project: Fitting an Early T56 to an LS Engine 
Clutch Basics 

Chapter 6: Wiring Harnesses and Wiring 
Take-Out Harnesses 
Cam Sensor Locations 
Connectors for 1997–1998 LS1 Engines 
Relays for 1997–1998 LS1 Engines 
Connectors for 1999–2002 LS1 Engines 
Relays for 1999–2002 LS1 Engines 
2009-up LS3 ECM Connector Pinouts 
LS3 Factory ECM Pinouts 
2014-up LT1 ECM Connector Pinouts 
Aftermarket Harnesses 
Performance Project: Drive-by-Wire to Drive-by-Cable Conversion 

Chapter 7: Engine Management Systems, Tuning Software and Controllers 
Aftermarket Tuning Packages 
Aftermarket Engine Management 
Performance Project: Installing an Aftermarket Transmission Controller 

Chapter 8: Fuel System 
Fuel Pumps 
Inline Fuel Pumps 
Performance Project: Installing a Phantom Pump System 

Chapter 9: Exhaust System 
Exhaust Manifolds 
Catalytic Converters 
Air Intake 
Performance Project: Installing a Pypes Exhaust System 
Performance Project: How to Properly Dimple Headers
Publisher: CarTech Inc. / SA Design
Softcover: 144 Pages
Dimensions: 8.5 x 11.0 x 0.3 inches
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