Life is full of constants. The sun will rise each morning, Newton's apple will fall, and if you are going to make power with a big-block Chevy, you have to use rectangle-port cylinder heads. So ...

Just in case you think that the era where you can read about car journalists like myself having, big, vulnerable, heaving feelings about things like turn signals and headlights is something new, I ...

The reason behind the loyalty to a particular port shape is the marketing employed for years by both Chevrolet and the aftermarket. From the very beginning, performance big-blocks like the L72, L88, ...