Harley-Davidson introduced the Panhead V-Twin in the fall of 1947 as a replacement for the Knucklehead engine for the upcoming 1948 model year. It would go on to power a number of iconic ...

The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ruckus while doing it. Mechanical lifters were adequate for valve operation ...

Add Yahoo as a preferred source to see more of our stories on Google. The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ...

LS1 engine design highlights and basic specs, why it’s such a popular swap, and a basic timeline, from the C5 Corvette to its use in the Australian HSV heroes. The General Motors 5.7 LS1 engine was a ...

Properly storing a vehicle for an extended period involves using a battery tender and fuel stabilizer. The cost for a Bentley oil change can range from $500 to $700 due to the high volume of premium ...

Properly storing a vehicle for an extended period involves using a battery tender and fuel stabilizer. The cost for a Bentley oil change can range from $500 to $700 due to the high volume of premium ...

Ford’s 7.3-liter Godzilla V8 has made a massive impact since its debut, quickly becoming a favorite for heavy-duty trucks and a popular swap for project cars thanks to its simple pushrod design and ...

Allyn started writing for TopSpeed in 2015, but has been writing on motorcycle and automotive topics since 2008 for outlets such as eHow, USAToday, and subsidiaries of MotorTrend. Formally trained as ...

The Cummins 6.7L turbo diesel engine entered its fifth generation in 2019. In addition to improved output of up to 400 horsepower and 1,000 pound-feet of torque, the new engine's valve train featured ...

Kyle has written professionally across the motorsport and motoring world since graduating from Plymouth University in 2018, and has acted as the MotoGP editor for Motorsport Week and as a Features ...