GM's LT1/LT4 engines represented the highest level of small-block V-8 develop-ment for the period between the legendary small-block Chevrolet and the introduction of the LS-series V-8. They powered all of the hottest production vehicles of the 1990s, including the Corvette, Camaro/Firebird, and Caprice/Impala SS. These enhanced small-blocks were reliable and strong, and can be built to impressive performance levels on a relatively small budget, with the right upgrades.
This book guides you through the factory and aftermarket components of the LT1/LT4 engines, offering sound performance advice and recommendations. Additionally, complete engine buildup recipes are provided, along with their respective horsepower and torque levels. You can follow the advice of experts and achieve targeted results for your own project.TABLE OF CONTENTS:
Acknowledgments
Introduction
Chapter 1: Engine Block
- Basic Design
- Year and Model Differences
- Desirability
- Upgrades and Modifications
- Oil Pan, Oil Pump, Pickup and Windage Tray
Chapter 2: Rotating Assembly
- Crankshaft
- Connecting Rods
- Pistons
- Flywheel
- Hub and Dampener
Chapter 3: Heads
- Valves
- Head Flow Data
- Performance Capabilities
- Factory Heads
- Aftermarket Heads
Chapter 4: Valvetrain
- Timing Chain and Cover
- Camshaft
- Lifters
- Pushrods
- Rocker Arms
- Valve Locks and Retainers
- Spring Seats
- Valves and Valvesprings
Chapter 5: Air and Fuel Management
- Intakes: LT1 vs. LT4
- Production Injectors
- Exhaust Headers
- Electronic Control Module
- Modes of ECU Operation
Chapter 6: Ignition and Electronic Controls
- Optispark
- Ignition Coil
- Wiring Harness
Chapter 7: Assembly
- Prepping for Assembly
- Bottom End Assembly
- Top End Assembly
Chapter 8: Dyno Results
- Build #1 Craig Nyhus 383-ci LT1
- Build #2 Dan Napoleone 383-ci LT4
- Build #3 Gary Rudolf 355 LT1
- Build #4 Buck Benziger 402-ci LT1
- Build #5 Ryan Custodio 355 LT1 Supercharged
- Build #6 Jim Hall 402-ci LT1
- Build #7 John Schaefer 383
- Build #8 Ron Bilyeu 409
- Build #9 Golen Engine Service 396-ci LT1
- Build #10 TPIS Intake Test Motor
- Build #11 Mooney LT1 392
- Build #12 Todd Danielson/Mooney LT1 396
- Build #13 368 for Bonneville Salt Flats
Appendix: Cylinder Head Flow Data
Source Guide
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