Many people new to racing understand that aluminum is lighter than cast iron, but don't realize how much of a difference it can make when you are talking about a pair of cylinder heads. On a Chevy ...

According to RHS, the Pro Torker small-block heads were designed to out-perform all previous iron offerings. Compared to the GM 906 castings, the Pro Torker Vortec heads offer an additional 27 cfm ...

Read the tech article on Iron vs. Alloy Engine Heads, ... The Motown 220 Lite aluminum version is almost a clone of its cast-iron cousin with the ... using a 400ci small-block, 3.75-inch stroke ...

Wendell T. Brown of Kansas City, Missouri, asks us if late 350 Chevy TBI heads will work on a carbureted 1970s short-block. Find out the answer here on HotRod.com or in the April 2013 issue of Hot ...