GM’s factory skunkworks turned out this Chevy Vega with a well-engineered all-aluminum small-block in 1972. It didn’t make it ...

Chevy is working to improve the Small Block's high-rpm performance. To make that happen, the engine has Fast Burn aluminum cylinder heads and an updated valvetrain inspired by the LS family of ...

Other Chevy cylinder head castings would do in a pinch ... with free-flowing ports and large valves. While aftermarket aluminum heads are lighter weight than cast-iron versions, we'll focus ...