Introduced in 1997, the GM LS engine has become the dominant V-8 engine
in GM vehicles and a top-selling high-performance crate engine. GM has
released a wide range of Gen III and IV LS engines that deliver
spectacular efficiency and performance. These compact, lightweight, cutting-edge
pushrod V-8 engines have become affordable and readily obtainable from a
variety of sources. In the process, the LS engine has become the most
popular V-8 engine to swap into many American and foreign muscle cars,
sports cars, trucks, and passenger cars.
To select the best
engine for an LS engine swap, you need to carefully consider the
application. Veteran author and LS engine swap master Jefferson Bryant
reveals all the criteria to consider when choosing an LS engine for a
swap project. You are guided through selecting or fabricating motor
mounts for the project. Positioning the LS engine in the engine
compartment and packaging its equipment is a crucial part of the swap
process, which is comprehensively covered. As part of the installation,
you need to choose a transmission crossmember that fits the engine and
vehicle as well as selecting an oil pan that has the correct profile for
the crossmember with adequate ground clearance. Often the brake
booster, steering shaft, accessory pulleys, and the exhaust system
present clearance challenges, so this book offers you the best options
and solutions. In addition, adapting the computer-control system to the
wiring harness and vehicle is a crucial aspect for completing the
installation, which is thoroughly detailed.
Table of Contents:
Acknowledgments 4
Introduction 5
Chapter 1: What You Need to Know about LS-Series Engines 6
Gen III: A Revolution in V-8 Performance 7
Gen IV: Improving the Legend 7
Feature Vehicle: 1996 Nissan 240SX SE 9
Chapter 2: Engine and Driveline 11
Motor Mounts 11
Adapter Plates 12
Transmission Mounts 15
Choosing a Driveline 20
Feature Vehicle: 1967 Corvette C2 Stingray 24
Chapter 3: Oil Pan 28
Stock Oil Pans 28
Aftermarket Gen III/IV Oil Pans 32
Oil Coolers 35
Feature Vehicle: BMW E36 39
Chapter 4: Accessory Drives and Cooling System 42
Stock Accessory Drives 42
GM Vehicles 43
Ford Mustangs 45
Nissan 240SX 46
Jeep CJ, YJ, TJ, XJ 46
Mazda Miata, RX-7 46
Cooling System 47
Feature Vehicle: Gen III Jeep YJ 57
Chapter 5: Transmission and Clutch 60
Automatic Transmissions 60
T56 Manual Transmission 65
Tremec TKO Manual Transmission 73
Aftermarket Kits 74
Feature Vehicle: Tri-Five Chevy 75
Chapter 6: Wiring Harness and Wiring 78
Wiring Harness Basics 78
Wiring a Classic Corvette 79
1999-2000 LS1 PCM Plug 1 80
1999-2000 LS1 PCM Plug 2 81
Connectors for 1997-1998 LS1 Engines 87
Relays for 1997-1998 LS1 Engines 88
Connectors for 1999-2002 LS1 Engines 89
Relays for 1999-2002 LS1 Engines 91
Aftermarket Harnesses 92
Feature Vehicle: Volvette: A Corvette-Engined Volvo 96
Chapter 7: Engine Management Systems, Tuning Software and Controllers 98
Reluctor Types 98
ECM Programming 100
ECM Tuning Packages 100
Aftermarket Engine Management 103
Feature Vehicle: 1967 Chevy Pickup 106
Chapter 8: Fuel Systems 111
In-Tank Fuel Pump 111
External Fuel Pump 116
Cavitation 120
Wiring 120
Return Lines 121
Feature Vehicle: 1966 Mustang 123
Chapter 9: Exhaust Systems 126
Exhaust Manifolds 126
Headers 128
Feature Vehicle: 1932 Ford Coupe 139
Source Guide 142
Jefferson Bryant is a life-long automotive enthusiast. At six years old,
he first laid eyes on a 1978 Pontiac Firebird, and he knew he would be a
car guy for life. For the last 15 years Jefferson has pursued the
automotive arts. Five years ago he reached a long-time goal of writing
for automotive hobbyist magazines including Car Craft, Rod and Custom,
MuscleCar Enthusiast, and Super Rod.