The Ford and Chevy 427 big blocks sit at the center of one of performance history’s fiercest rivalries, yet the two engines followed very different paths from the dyno cell to the winner’s circle. I ...

The Chevrolet L72 427 is a legendary big-block engine that powered some of the most iconic muscle cars of the 1960s. Known for its impressive horsepower and performance, the L72 427 has become a ...

Although it's more than half a century old, the L88 remains one of the mightiest V8s that ever powered a Corvette. For most people, there's nothing more American than apple pie, but for gearheads, ...

Chad has been a muscle car and classic truck lover since he could walk. The classic vehicles from the '60s and '70s are the best in his eyes, but he is more than willing to give the new technology a ...

We here at GM Authority love a good sleeper, and this 1978 Chevy Chevette appears to tick all right the boxes. From the outside, it looks like a standard two-door hatchback with a modest, unassuming ...

When the late sixties are considered concerning production cars' horsepower prowess, the generally accepted opinion is that the second-generation Hemi, with its 426 cubic inches (seven liters) and 425 ...

More. Hot-rodding is all about the quest for more, especially when it comes to horsepower. A while back we told you the tale of how Lingenfelter Performance figured out how to stroke the LT2 from the ...

This 1966 Chevrolet Corvette convertible is an appealing option for collectors looking for a well-documented classic muscle ...

With the brand-new Mark IV big-block 396 replacing the veteran 409 in February 1965, what could Chevrolet Engineering possibly pull next from it superb bag of ultra-performance tricks? The solid ...

We’re moving right along with our Summit Racing 427-ci small-block Chevy build. We started with a bare SPC engine block, and we’re building it from the bottom up. We left off last time with an ...