Car Tech®
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© 2017 by Jefferson Bryant
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Edit by Paul Johnson
Layout by Monica Seiberlich
ISBN 978-1-61325-426-4
Item No. SA383
Library of Congress Cataloging-in-Publication Data Available
Written, edited, and designed in the U.S.A.
10 9 8 7 6 5 4 3 2 1
Title Page:
GM’s LS and new LT1 engine platforms share some of the same technology but have some important differences. For swap projects, many of the same procedures for swapping an LS apply to the new LT platform. Upgraded from the LS series, the LT-series engine uses the same basic architecture, but it also features significant new technology, such as direct injection.
Back Cover Photos
Top:
General Motors brought out the LT4 in 2015. This is a supercharged version found in the Corvette Z06. The biggest differences from the LT1 to LT4 are lower compression and slightly stronger pistons and rods to handle the additional boost.
Middle:
In an LS swap project, late-model transmissions are often longer and require a different mounting position; therefore, the shifter needs to be relocated and the transmission tunnel modified.
Bottom Left:
I recommend pre-wiring the pump and pre-installing the hose fittings because once the tank has been installed, you do not have much room to do this.
Bottom Right:
For most swap projects, adapter plates are required to mount the Chevy small-block motor mounts to the LS block. But bolting the adapters to the engine is pretty simple: four socket head bolts and you are done.
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CONTENTS
Acknowledgments
Inroduction
Chapter 1: Modern V-8 Masterpieces: The LS- and LT-Series Engine
Gen III: A Revolution in V-8 Performance
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
Performance Project: Choosing a Driveline
Chapter 3: Oil Pans, Pan Modifications and Aftermarket Offerings
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