We test a variety of header sizes and types from Hooker on a 427ci big-block Chevy to show power trends and performance advantages. Tests include 1 ¾-inch long tube, 1 7/8-inch long tube, 2 ...

When it comes to Chevrolet big-blocks there are lots of notable ones to choose from, such as L78s, L88s, and L89s, but none compare to the legendary aluminum 427 ZL1 big-block! The ZL1 owes its ...

While there is some contention surrounding who produced the first muscle car, we can all agree that Chevrolet was certainly in the mix of it all during America's earliest muscle car days. In an effort ...

Explore Chevy's Turbo-Thrust big-block V-8 legacy, from the 348 to the rare 427 Z11, powering classics like the Impala with forgotten muscle might.

The big block V8 used to be a staple of hot rod and modification scenes. The old adage "there's no replacement for displacement" is seriously dated in the modern era, but it rang true in the era of ...

We test a variety of header sizes and types from Hooker on a 427ci big-block Chevy to show power trends and performance advantages. Tests include 1 ¾-inch long tube, 1 7/8-inch long tube, 2-inch long ...