AMC Eagle Jeep Inline 4 2.5 Engine Parts

Learn correct spark plug firing orders for SBC, LS, Mopar, AMC, and Ford V8s, and learn what the correct firing order means for performance.

Learn how to identfy motors for your LS Swap. In this guide we cover generation 4 small block engines and some of the cheaper options for more power.

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Where do you stand on engine swaps? Does your Ford need to have a Ford engine and your Chevy need to have a Chevy? Or, does anything go in the name of speed? We want to hear your opinion...

Engine Cylinder Numbers

To celebrate the upcoming 106th running of the Indianaplis 500, here's a look back at a few of the engines that have competed at the Brickyard over the years.

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

All you need to know about racing a 602 GM crate engine and the necessary parts to make a race ready engine.

In honor of NASCAR's 75th anniversary, we're taking a look at a few remarkable engines that have powered our favorite racers to victory through the years.

Derek kicks off his 55 Chevy rebuild with a fresh small block.