Scoggin-Dickey made this rotating display stand to visibly illustrate the differences between Vortec heads and conventional small-block Chevy heads, such as these used by 1985-92 TPI applications.

Read the Chevy Hi-Performance tech article on every street style vortec you can buy.

A quick test of eight pairs of small block Chevy heads priced at less than $1,000 to find the best small block Chevy heads on a budget.

GM's 706 Vortec heads are the cheapest and most effective heads you can use on your 4.8-liter and 5.3-liter, and even some 6.0-liter LS engine builds. Bold statement? Well, not really. You see ...

We did a dyno test of a set of iron Vortec heads without pocket porting compared to an aftermarket set of aluminum heads that had been intentionally ported well beyond the 90-percent rule.

Chevrolet's Vortec 8100 was a powerful big block engine that could be found in many GM vehicles. However, it was eventually discontinued. Here's why.

Take his 2010 Chevy Camaro SS for example—it just cracked 1,000 horsepower at the tire. Nelson goes by Nivlac57 on YouTube where he documents the progress of all his builds.

General Motors' Vortec engine has powered some of the best cars GM ever made, but it's not without its problems. Which years present the most issues?

Take his 2010 Chevy Camaro SS for example—it just cracked 1,000 horsepower at the tire. Nelson goes by Nivlac57 on YouTube where he documents the progress of all his builds.

Big block engines used to power some of the toughest trucks, but they've fallen to the wayside. Chevy's final big block engine was one of the biggest ever.