New Hemi Engines 2003 to Present: How to Build Max Performance


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With this book, you can transform a New Hemi engine into an even more responsive and faster powerplant. You are able to build the engine that suits all your high-performance needs.

The New Hemi engine has an aggressive persona and outstanding performance. Powering the Challenger, Charger, Ram trucks, and other vehicles in the Chrysler lineup, this engine produces at least one horsepower per cubic inch. Unleashed in 2003, it has been offered in 5.7-, 6.1-, 6.2-, and now 6.4-liter displacements. With each successive engine introduction, Chrysler has extracted more performance. And with the launch of the Hellcat and Demon 6.2-liter supercharged engines, Chrysler built the highest horsepower production engines ever made, at 707 hp and 840 hp respectively.

This third-generation Hemi carries on a high-performance Chrysler tradition and is considered the most powerful and “buildable” new pushrod V-8 engine on the market today. Mopar engine expert and veteran author Larry Shepard reveals up-to-date modification techniques and products for achieving higher performance. Porting and modifying the stock Hemi heads as well as the best flow characteristics with high lift are revealed. In addition, guidance on aftermarket heads is provided.

A supercharger is one of the most cost-effective aftermarket add-ons, and the options and installation are comprehensively covered. Shepard guides you through the art and science of selecting a cam, so you find a cam that meets your airflow needs and performance goals. He details stock and forged crankshafts plus H- and I-beam connecting rods that support the targeted horsepower, so you can choose the best rotating assembly for your engine. In addition, intake manifold and fuel systems, ignition systems, exhaust systems, and more are covered.


Pages: 144
Size: 8.5 X 11 (inches)
Format: Paperback
Illustrations: 334 color
Publisher: CarTech
ISBN: 9781613253571
Product Code: SA404



Chapter 1: A Brief Hemi History
Production Engines
Custom Engine Packages
Car and Truck Models
Optional Performance Packages for Car Models
Custom Production Cars
Crate Engine

Chapter 2: Blocks 
Basic Design
Engine Details
Crate Engines
Performance Packages
Machining Operations
Max-Performance Technology

Chapter 3: Crankshafts and Connecting Rods
Production Cranks
Crank Prep
Crank Dampeners
Front Cover
Crank Upgrades
Aftermarket Options
Connecting Rods
Rod Upgrades
Rod Prep

Chapter 4: Pistons and Rings 
CC-ing Procedure
Compression Ratio
Piston Upgrades
Aftermarket Options
Piston and Ring Prep
Piston Pins
Piston Rings

Chapter 5: Lubrication System 
System Components
Oil Path
Oil Pump
Oil Pans
Oil Filters
Oiling System Upgrades
Dry Sump
Vacuum Pump

Chapter 6: Camshaft, Lifters and Cam Drive 
Camshaft Technology
Valvetrain Geometry
Installation Basics
Camshaft and Spring Upgrades
Performance Packages
High-Performance and Race Cams

Chapter 7: Cylinder Heads 
Aluminum Cylinder Heads
Aftermarket Offerings
Racing Heads
CNC Porting
The Engine “Team”
Seats and Guides
Head Gaskets
Head Bolts

Chapter 8: Valvetrain 
Rocker Arms
Rocker Ratio
Rocker Shafts
Rocker Stands
Coil Bind
Retainers, Keepers and Seals

Chapter 9: Intake Manifold and Fuel System
Production Intake Manifolds
Aftermarket Intake Manifolds
Manifold Types
Intake Manifold Upgrades
MPI Fuel System
Throttle Bodies
EFI System
Intake Gaskets
Air Cleaners

Chapter 10: Ignition System 
Brief Overview
Advance Curve
Spark Advance
Crank Position Sensor
Mopar Scat Pack Kits
Aftermarket Options
System Upgrades

Chapter 11: Supercharging 
Knock Sensors
Belt Drive
Supercharger Basics
A Few Supercharger Tips
Aftermarket Sources
Nitrous Oxide

Chapter 12: Exhaust System 
Catalytic Converter
Exhaust Bolt Pattern
Engine Swaps
Oxygen Sensor
Exhaust Pipes
Exhaust Gaskets
Cat-Back System

Chapter 13: Engine Break-In and Timing 
Dyno Overview
Basic Tests
Air/Fuel Ratio
Tuning for Power
Nitrous Oxide