Who isn't a fan of the original 23-degree small-block Chevy? After all, it revolutionized the automotive aftermarket and has truly earned its legendary status. For those new to the Chevy scene, ask ...

There are times where, even in print, I can't help but show my age. This is one of those times. See All 8 Photos8 Now, for those who've never paid much attention to GM's Gen III small-block, here's ...

Mike has been an automotive writer since 2007. He's also the author of a 32,000+ word ebook on the inner workings of cars, suspensions, and engines, with 2 chapters on quick and easy performance ...

Peterbilt Motors Co. announced that a California-compliant version of the Paccar MX-13 diesel engine is now available in its Model 579, Model 567 and Model 589 trucks. The engine is compliant with ...

Every General Motors LS engine is special, starting with the LS1, a 5.7-liter Gen III small block V8 which debuted in the 1997 C5 Corvette. In 2008, GM released the 6.2-liter LS3 based on the Gen IV ...

Kenworth has introduced a California Air Resources Board (CARB) compliant version of the Paccar MX-13 engine. The engine is available as a spec for heavy-duty Kenworth models that meet 2024 ...