A small gap with big importance in the performance and health of an engine - here's everything you need to know.

Hot rod builds a mouse trap and tries to catch a rat. Originally published in the August 1998 issue of Hot Rod magazine. To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring ...

ANSWERBack in 1955, you (or your grandpa) might have posed a very similar question: "Why does that new-fangled small-block Chevy make more peak power and torque at a higher rpm than my trusty Flathead ...

There is so much going on with internal combustion engines (ICEs) these days, it can give you a headache just reading about them. That's why we do the research for you and then cram it into bite-size ...

Taking care of your vehicle is vital to ensure it stays in great condition. Your brakes could give you trouble someday, or your suspension could require tinkering, inevitably leading you to an auto ...

That alone reduces emissions and increases engine longevity. The rotary valve also means that the blockages caused by conventional poppet valves are not an issue as poppet valves are not needed in ...

Since the dawn of the internal combustion engine, the search for power has been paramount in internal combustion engine development and advancements over the years. Ranging in all sorts of different ...

Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

The GM Gen 6 Small Block is a family of gasoline eight cylinder engines produced by General Motors Company for use in various vehicles, including sports cars, pickup trucks, SUVs and possibly vans.

The 6.0 liter V8 LS2 engine was produced by General Motors for use in performance vehicles and sports cars. It is part of GM’s Gen IV Small Block engine family and was first introduced in the 2005 ...

Brian is a published author who has been writing professionally for a decade in politics and entertainment, but found his calling covering the automotive industry. His love of cars started at an early ...