For the most part, GM is in the business of selling new cars, not producing parts to keep the old ones running. This creates quite a headache for hot rodders and those who want to track, or even just ...

While everybody knows what the oil pump's job is and why it's there, few enthusiasts consider the lowly bubbler as a possible engine tuning resource. We've come to appreciate that it takes power to ...

Cummins’ 5.9L diesel engines have many wonderful traits, from the simplicity of their design to the durability and reliability of their internal components. However, the powerplants also have parts ...