4x4 & Off Road Engines Reviews

50-State-Legal Walker Jeep Catalytic Converter Swap

Jeepers who have to pass emissions tests usually know that exhaust modifications downstream of... » Read More

Part Eleventy-Hundred of Our 1969 Bronco Build

Sadly, our Early Bronco project has been languishing. That’s for a few reasons, and not all... » Read More

BluePrint Engines 306ci Bronco Edition Crate Engine

My Boy Blue!... » Read More

Junkyard Fuel Injection Conversion

Junkyard Fuel-Injection Conversion for Almost Any V-8... » Read More

Jeep Six-Cylinder 4-1-1

The lowdown on all Jeep six-shooters... » Read More

Installing the Newest, Nicest Cummins R2.8 Turbo Diesel in the Oldest, Ugliest Jeep

Part 5: The Cummins Has Landed... » Read More

Nuts & Bolts: Vortec Retrofit

A reader asks for advice on replacing the seized engine in his 1998 Chevy 4WD dualie.... » Read More

Installing Edelbrock’s Performer Truck 5.0 Intake And BBK’s Twin Power Plus Series Throttle Body On A 5.0L 1991 Bronco

Edelbrock Performer Truck 5.0L intake manifold and 61mm BBK Power Plus Series throttle body adds... » Read More

TJ LS1 V-8 Conversion: Part 1

We pull a 4.0L I-6 out of a 2000 Jeep TJ Wrangler and plant a 5.7L Camaro LS1 V-8 in its place.... » Read More

aFe Power MACH Force XP 2.5-Inch After-Cat Exhaust System for 2007-2016 Jeep Wrangler

We install an aFe Power MACH XP after-cat exhaust on our 2012 Jeep Wrangler.... » Read More

Clean Air: Good For Tree Huggers and Engines

Jeep engines (all engines, really) need cool air to run at their best, but if that air is not... » Read More

How To Gain Back Acceleration After Adding Larger Tires

To gain back some of the acceleration we lost when we added larger tires to our LJ, we add power... » Read More

Gibson Performance after-cat exhaust system installed in 2001 Toyota Tacoma

We install a Gibson Performance after-cat exhaust system on our 2001 Toyota Tacoma to increase... » Read More

Barn-Find 1972 Jeep Wagoneer Road Trip

We buy a pristine 1972 Jeep Wagoneer, which you can see in an episode of Dirt Every Day.... » Read More

Cheap Truck CJ5 repairs lead to larger tires and no engine.

Rob Peterson's CJ5 from Cheap Truck Challenge 2015 goes from poorly-running inline four to... » Read More

Dropping a Coyote Crate Engine Into a Vintage Bronco

Technical details of installing a Ford Performance Coyote 5.0L crate V-8 engine into a vintage... » Read More

Less Is More With MagnaFlow's Dodge Ram 1500 Off-Road Exhaust System

Installing a cat-back exhaust is one of the easiest upgrades you can make, especially when the... » Read More

Rebuilding A Chevy 350 Small Block For Our Toyota FJ40 Land Cruiser

There are few off-road vehicles that are as iconic as the Toyota FJ40 Land Cruiser. It’s just... » Read More

Nuts & Bolts: V-8 Transplant Into an XJ

I have an issue with my 2001 XJ. When I bought the Jeep it had a blown-up engine and the... » Read More

How to Convert Your Willys F-134 from Points to Electronic Ignition

We show all you guys the Pertronix electronic ignition conversion for our 1959 Willys CJ-6 F134... » Read More