ONE LUNG JIMMY

THE RARE AND ELUSIVE GENERAL MOTORS 1-71 The General Motors 71 Series two-stroke diesels are iconic and legendary members of the Black Smoke Hall of […]

PROJECT SUPER DUTY

PART ONE: IMPROVING THE 6.4L POWER STROKE FOR SUPERB USABILITY It’s hard to believe, but the 6.4L Power Stroke is coming up on ten years […]

MAX POWER!

POWER! INSIDE A WAGLER COMPETITION PRODUCTS 2,000+ HP DURAMAX ENGINE BUILD The basic Duramax engine hasn’t change much since GM put it that in the […]

TURBOS, NITROUS, AND A BLOWER?

INSIDE WAGLER’S 3,000HP GAME-CHANGING DX500 DURAMAX Diesel engines have been around for more than 100 years, but they have made leaps and bounds in the […]

WILD WATER INJECTION

SCHEID DIESEL’S ELECTRIC WATER INJECTION KIT ON A 1,000HP RACE TRUCK Water injection has been around nearly as long as the diesel engine has been […]

ULTIMATE WORKING HEAVY HAULER-DURAMAX EDITION

PART FIVE: STEERING, TRANSMISSION AND TRACTION UPGRADES We are nearing the end of our Ultimate Working Heavy Hauler project. In Part Five of the series, […]

THE SHIP'S CAT

HISTORIC WWII SHIP WITH A HISTORIC CATERPILLAR ENGINE The Caterpillar Tractor Company wasn’t the first American engine maker to offer a diesel, but their engines […]

DURAMAX DOMINATION!

HOW TO MAKE 500 TO 1,500 HP WITH GM’S FAMOUS DIESEL There are many ways to build horsepower, and each has its advantages and drawbacks. […]

Welcome to Sleeperville: The Stock-Appearing 550-HP F-250

Not everyone sets out to perform a general repair on their truck and then proceeds to add 300 hp to it—but that’s exactly what David […]

The Truth About Transmissions

Dissecting the Allison 1000, Dodge 47/48, and Torque Converters with Dave Goerend While Diesel World Editor Adam Blattenberg was over getting a crash course in […]

Ultimate Working Heavy Hauler— Duramax Edition

Improving Hauling and Fueling Capabilities We introduced this 2003 Silverado 3500 LB7 Duramax in the December issue to show you what it takes to convert […]