LS Engine Parts Interchange: 1997-2020: 1997-2020
Mix and match parts for your LS engine to maximize power on a budget!

With its debut in 1997, the General Motors LS—series engine arguably became the most popular V—8 engine in the world. It was first offered in Corvettes and then migrated to the entire General Motors lineup (where V—8s were offered), and millions have been manufactured. These engines are compact, powerful, and abundantly available through salvage yards and crate—engine programs. Due to being manufactured for more than 20 years, many versions of the LS—engine platform exist, including more than 30 variants. Many parts are interchangeable, but some are not.

In LS Engine Parts Interchange: 1997–2020, veteran LS—engine authors Joseph Potak and Jefferson Bryant present a wealth of knowledge regarding which parts work well together and which parts do not. Parts that are covered include engine blocks, rotating assemblies, cylinder heads, camshafts and the valvetrain, oiling systems, intake manifolds, electronic engine controls, and more.

Which cam works best for your application? Perhaps you are interested in building a stroker with factory parts. Can you retrofit the free—flowing Gen IV heads onto a Gen III block? This book covers each of these topics. If you would like to extract more horsepower using all factory parts, if you want to plan for a swap, or if you simply want to know more about the entire LS engine family, this book is a vital resource.

1147307253
LS Engine Parts Interchange: 1997-2020: 1997-2020
Mix and match parts for your LS engine to maximize power on a budget!

With its debut in 1997, the General Motors LS—series engine arguably became the most popular V—8 engine in the world. It was first offered in Corvettes and then migrated to the entire General Motors lineup (where V—8s were offered), and millions have been manufactured. These engines are compact, powerful, and abundantly available through salvage yards and crate—engine programs. Due to being manufactured for more than 20 years, many versions of the LS—engine platform exist, including more than 30 variants. Many parts are interchangeable, but some are not.

In LS Engine Parts Interchange: 1997–2020, veteran LS—engine authors Joseph Potak and Jefferson Bryant present a wealth of knowledge regarding which parts work well together and which parts do not. Parts that are covered include engine blocks, rotating assemblies, cylinder heads, camshafts and the valvetrain, oiling systems, intake manifolds, electronic engine controls, and more.

Which cam works best for your application? Perhaps you are interested in building a stroker with factory parts. Can you retrofit the free—flowing Gen IV heads onto a Gen III block? This book covers each of these topics. If you would like to extract more horsepower using all factory parts, if you want to plan for a swap, or if you simply want to know more about the entire LS engine family, this book is a vital resource.

32.95 In Stock
LS Engine Parts Interchange: 1997-2020: 1997-2020

LS Engine Parts Interchange: 1997-2020: 1997-2020

LS Engine Parts Interchange: 1997-2020: 1997-2020

LS Engine Parts Interchange: 1997-2020: 1997-2020

Overview

Mix and match parts for your LS engine to maximize power on a budget!

With its debut in 1997, the General Motors LS—series engine arguably became the most popular V—8 engine in the world. It was first offered in Corvettes and then migrated to the entire General Motors lineup (where V—8s were offered), and millions have been manufactured. These engines are compact, powerful, and abundantly available through salvage yards and crate—engine programs. Due to being manufactured for more than 20 years, many versions of the LS—engine platform exist, including more than 30 variants. Many parts are interchangeable, but some are not.

In LS Engine Parts Interchange: 1997–2020, veteran LS—engine authors Joseph Potak and Jefferson Bryant present a wealth of knowledge regarding which parts work well together and which parts do not. Parts that are covered include engine blocks, rotating assemblies, cylinder heads, camshafts and the valvetrain, oiling systems, intake manifolds, electronic engine controls, and more.

Which cam works best for your application? Perhaps you are interested in building a stroker with factory parts. Can you retrofit the free—flowing Gen IV heads onto a Gen III block? This book covers each of these topics. If you would like to extract more horsepower using all factory parts, if you want to plan for a swap, or if you simply want to know more about the entire LS engine family, this book is a vital resource.

Product Details

ISBN-13: 9781613253960
Publisher: CarTech
Publication date: 04/15/2025
Pages: 144
Product dimensions: 8.30(w) x 10.90(h) x 0.50(d)

About the Author

Joseph Potak is a performance consultant, ASE Certified Master Technician, and automotive writer and enthusiast. He has been elbow deep with the LS—Series of engines for the better part of the past two decades, building performance—enhanced vehicles, testing engines on dynamometers, and constantly looking to push the performance envelope further every day via R & D projects. He is well known for his long tenure at Texas Speed and Performance and as a veteran moderator on LS1tech.com forums.

A lifelong car guy, Jefferson Bryant has been working on cars since the tender age of 16 when he bought a 1978 Pontiac Firebird. As a hands—on tech writer, he has performed many GM LS engine swaps in his own shop. His work has appeared in the country’s top automotive magazines, including Hot Rod, Car Craft, and Rod & Custom. Bryant has authored Swap LS Engines into Chevelles & GM A—Bodies, How to Swap GM LS—Series Engines into Almost Anything, and several other books.

Table of Contents

About the Authors

Introduction

Chapter 1: Production LS—Series Engines

5.7L LS—Series Gen III Engines

Vortec Family Gen III Engines

Gen IV Powertrains

Gen IV Performance Engines

Gen IV Vortec Truck Engines

Active Fuel Management

Variable Valve Timing

Gen III and Gen IV Identification

Chapter 2: Engine Blocks

5.7L Gen III Aluminum Engine Block LS1/LS6

4.8L/5.3L Gen III Iron Engine Blocks LR4/LM7/L59

5.3L Gen III Aluminum Engine Blocks L33/LM4

6.0L Gen III Iron Engine Block LQ4/LQ9

6.0L Gen IV Aluminum Engine Block LS2/L76/L77

6.2L Gen IV Aluminum Engine Block (Naturally Aspirated Applications) LS3/L99

6.2L Gen IV Aluminum Engine Block (Supercharged Applications) LSA/LS9

7.0L Gen IV Aluminum Engine Block LS7

4.8L/5.3L Gen IV Iron Engine Block LY2/L20/LY5/LMG/LMF

5.3L Gen IV Aluminum Engine Block LH6/LH8/LH9/LC9

6.0L Gen IV Iron Engine Block

Aftermarket Blocks: LSX, RHS, and LSR

Block Upgrades

Chapter 3: Rotating Assembly Components

Factory LS—Series Crankshafts

Reluctor Wheels

Connecting Rods

Pistons

Rotating Assembly Balancing

Internal Engine Critical Clearances

Performance Rotating Assemblies (Stroker Kits)

Weaknesses and Upgrades

Chapter 4: Cylinder Heads and Valvetrain

Cathedral—Port Cylinder Heads

Rectangle—Port Cylinder Heads

L92, L94, L76, L98, and L99 versus LS3, LSA, and LS9 Cylinder Heads

LS7 Cylinder Heads

Ported Cylinder Heads

Aftermarket Cylinder Heads: Performance Castings

OEM Valve Springs

Aftermarket Valve Springs

OEM Rocker Arms and Upgrades

Chapter 5: Camshafts and Hardware

Gen III and Gen IV Camshaft Basics

Rocker Arms

Pushrods

Dial—Indicator Method

Counting Turns Method

Hydraulic Lifters

Lifter Tray Designs

Active Fuel Management Lifters

Timing Chains

Timing Chain Guide/Tensioners

Cam Bearings

Chapter 6: Crankcase and Oiling Systems

Oil Pans

Aftermarket Oil Pans

Engine Oil Pump

Sticking Pressure Regulator

AFM Oil—Pressure Regulator

Oil Pump Modifications

Melling Oil Pumps

Supplemental Oil—System Upgrades

Chapter 7: LS Intake Manifolds and Accessory Drives

Gen III Intakes: Performance Cars

Gen III Intakes: Trucks/SUVs

Gen IV Intakes: Performance Cars

Gen IV Intakes: Truck Versions

Factory Supercharged Engine Supercharger Fitment

FWD Intake Manifold

Accessory Drives

Chapter 8: LS Engine Controls

Gen III Engine Controllers

Gen IV Engine Controllers

Aftermarket ECMs

Chapter 9: External Covers, Fasteners, Gaskets, and Seals

External Cover Sealing

Water—Pump Gaskets

Gen III Valve/Rocker Covers

Front Timing Covers

Timing—Cover Gasket and Crankshaft Seal

Rear Cover and Crankshaft Seal

Cylinder—Head Gaskets

Aftermarket Head Gaskets

OEM Head Bolts

ARP Head Bolts and Studs

Main Bolts

Windage Tray Spacing

Gen III Valley Plates

Gen IV Valley Plates

Coolant Pipe Gaskets (Steam Lines)

Crankshaft Bolts

Flywheel/Flexplate Bolts

Camshaft Retainer Plate

Appendix: LS—Series Engine Torque and Bolt Specifications: 1997–2020 Gen III and Gen IV

Soure Guide

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