Ls Gen IV Engines 2005 - Present : How to Build Max Performance

by Mike Mavrigian


Outside Australia? Tax free price AUD$54.50 currency converter

Availability: Usually dispatched within 48 hours read more

add to shopping cart

Or call (02) 9057 4158 to order by telephone
Quote order code CT-SA413

ask us a question about this product

Ls Gen IV Engines 2005 - Present : How to Build Max Performance - Front Cover

Front Cover

Front Cover

Rear Cover

Rear Cover


The GM LS Gen IV engine dominates the high-performance V-8 market and is the most popular powerplant for engine swap projects. In stock trim, the Gen IV engines produce class-leading horsepower. The Gen IV's rectangular-port heads flow far more air/fuel than the Gen III cathedral-port heads. However, with the right combination of modification procedures and performance parts, you can unlock the performance potential of the Gen IV engines and reach almost any performance target.


Part 1: LS Gen IV
LS Gen IV Engine Overview
LS2 Differences
Performance Gains
Retrofitting the LS

Engine Blocks
Stock Blocks
Modifying the Stock Aluminum Block
Disabling Performance-Robbing Displacement on Demand
Main Caps
Aftermarket Blocks

Crankshafts and Connecting Rods
Crankshaft Reluctor Wheel
Crank Snout Length
Connecting Rods
Rod Bearings
Crank Stroke and Rod Length
Aftermarket Connecting Rods
High-Performance Crankshafts

LS7, LS3, and LS9 Cylinder Heads
Cylinder Head Interchangeability
Water Temp Holes
Rocker Arm Pedestal Rails
Aftermarket Performance Heads
Selecting a Cylinder Head

Piston Compression Height
Bore Size, Dome, and Compression Ratio
Skirt-to-Wall Clearance
Piston and Rod Orientation
Skirts and Major/Minor Thrust
Offset Pin
Piston Coatings

Camshafts and Lifters
Camshaft Terminology
Factory Camshafts
Active Fuel Management (AFM)
Intake and Exhaust Difference
Camshaft Firing Order
Hydraulic or Solid
Cam Gears
Lifters and Lifter Guides

Rocker Arms
Stock LS Rocker Arm Trunnion Upgrades
Tool Note
Aftermarket Rockers
High-Performance Rocker Arms

Oiling Systems
Rear Main Seal
High-Pressure/Volume Upgrade
Dry Sump
Oil Pressure Sensor

EFI and Intake Manifolds
Intake Manifolds
Throttle Body Injection
Fuel Injector Size
Low Impedance versus High Impedance

Part II: Two High-Performance LS Builds
Dual-Carb LS 408
Connecting Rods
Timing Set
Oil Pump
Cylinder Heads
Water Pump
Crank Damper
Intake Manifold
Our Dyno Results

Dart LS Next Build
The LS Next Block
Machining the LS Next Block
Crankshaft Balancing
Connecting Rods
Timing Set
Piston/Rod Assembly
Oil Pump
Oil Pan
Crank Damper
Cylinder Head Installation
Intake System
Ignition Coils
The LS Next Dyno Session

Assembly Procedures
Crankshaft Installation
Cylinder Head Installation
OEM Lifter Buckets
Rear Oil Diverter
Rear Main Seal Installation
Front Cover
Valley Plate
Crank Damper/Pulley Installation
Timing Chain Damper
Connecting Rod Bolts
Changing Camshafts
Valve Cover Swap
Carb Setup on LS
Custom Cylinder Head Steam Plumbing
Hose Lengths

Source Guide

Muscle car owners, LS engine builders, and many enthusiasts have migrated to the Gen IV engine platform, so clear, concise, and informative content for transforming these stock engines into top performers for a variety of applications is essential. A massive amount of aftermarket parts is available and this provides guidance and instructions for extracting top-performance from these engines. If you're searching for an authoritative source for the best components and modifications to create the ultimate high-performance packages, then you've found it.

product details

  • Publisher: Cartech, Inc.
  • ISBN: 1613253907 (1-613-25390-7)
  • ISBN-13: 9781613253908 (978-1-613-25390-8)
  • Format: Paperback: 144 pages
  • Date Published: 2018


Shipping: Our standard shipping rates apply read more

Within Australia there is a flat delivery charge of A$9.95 per order (any number of items).


reviews and comments

The Computer Outpost does not endorse, recommend or sponsor any guest product reviews and comments.

As this is a family friendly page, The Computer Outpost reserves the right to remove reviews and comments that it considers to be offensive, derogatory or otherwise inappropriate. The Computer Outpost may also remove reviews and comments that it considers to be misleading or deceptive.

email exclusives

Get new releases, special offers and more sent right to your inbox.

back to top