General Motors has spent decades refining overhead-valve V8s while much of the industry pivoted to dual overhead cam designs, turbocharging, and downsized blocks. I set out to understand why Chevrolet ...

The Boss 351 Ford engine is the basis for the construction of the stroked 366 Ford drag engine. It looks strong. You guys are probably asking yourselves, "Okay, what's a 366-inch Chevy or Ford engine, ...

I started learning to work on cars in the late 1970s by helping my stepdad turn salvaged mid-1960s Chevy Chevelles into street-stock-class race cars. Throughout that period, I had my hands on a number ...

Let's define "small-block" so no one will get mad (people will still get mad). General Motors may call the Gen-III to Gen-V LS and LT V8s "small-blocks" in marketing materials, but even Chevrolet's ...

It was nicknamed the Mystery Motor and the Porcupine. Whatever you call it, the 1963 427 Mark-IIS is so rare that only nine ...

Last month Chevrolet Performance sent over two brand new transmissions, a 4L65-E and a 4L85-E to use in some project car builds that we are currently working on. Now it's time to unveil the engines ...

Q: Greg I enjoy your column very much and I hope you can answer my question that I’ve been thinking about for 50 years. I recall that you once owned a 1968 Camaro with a 396 and 375 horsepower big ...

GM Authority has been busy serving up several exclusive details on the next-gen GM Small Block V8, but now, we're wondering - ...

American carmakers in the 1960s chased trends like Metallica cutting their hair. Seemingly, every brand had to have a large displacement V8, even producing ...

Forget Chevrolet vs. Ford. The hottest racing rivalry right now just may be Chevrolet vs. Honda. In the four IndyCar series races run this season (not including Sunday’s scheduled Indianapolis 500), ...

A local Southern California drag enthusiast, Larry Mollicone of Bill's Garage, built this stout 366 Chevy engine. The Boss 351 Ford engine is the basis for the construction of the stroked 366 Ford ...

Q: Greg I enjoy your column very much and I hope you can answer my question that I’ve been thinking about for 50 years. I recall that you once owned a 1968 Camaro with a 396 and 375 horsepower big ...