Tech Projects

Sixty-some years ago, before our favorite four-wheel-drive vehicle earned the name Jeep, the Army’s 4WD ¼-ton scout vehicle was given the designation of “GP” for General Purpose vehicle. It was given this […]

Editor’s Note: Mike Mavrigian of Birchwood Automotive is back with another cool engine build. This one is a 440 cubic inch LS engine based on Dart’s LS Next iron block. […]

In Part One of YJ Rehab, we showed you how to restore the suspension and upgrade the fuel system on a 1994 Jeep Wrangler Sahara. In this exciting episode, we’ll […]

Back in 1999, Mike Petralia at Hardcore Horsepower & Dyno Shop in Franklin, TN built a 556-cubic-inch big block Chevy test mule for Hot Rod magazine. That engine made 790 horsepower […]

Everybody that has Ford blue running through their veins loves the 5.0L Coyote. And with good reason—a production Coyote makes 435 horsepower and 400 ft.-lbs. of torque, and they’re readily […]

OnAllCylinders readers might remember when we began our 70,000-mile 1994 Jeep Wrangler Sahara project by giving it a frame-off restoration by stripping and recoating the frame with KBS products. That was a while […]

It’s time to hit the highway for a little summer adventure. Our getaways often include four-wheeling on new and distant trails, and that means towing our Jeep behind a motorhome or some other tow […]

Mike Petralia, owner and chief bottle washer at Hardcore Horsepower & Dyno in Franklin, TN, is no stranger to hot small block Ford builds. So when it came time to […]

It’s not every day you run across a bona fide race warrior tucked away in a barn or shed, especially if that warrior is an American Motors product. But that’s […]

It’s hard to argue the popularity of the fifth-generation Camaro. Chevrolet sold nearly 600,000 Camaros during the production run of the fifth generation, including over 80,000 in 2013 alone. That’s […]