ATK Engines Mercury C4 Parts

Mick Rau has a garage full of cool cars, but this Hirohata-inspired Merc is a standout.

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!

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.

Engine Cylinder Numbers

Don't forget to change the oil in your tow rig! Lucas Oil has you covered with CK-4 Diesel Motor Oil. Learn more...