Ford produced good small-block heads for a few years (1963-66) before altering them to meet emissions requirements. Most of these changes occurred in the exhaust ports, thus performance suffered.

From the archives: Using a stash of parts and an old set of AFR 227 heads, see how this small-block combo got every last bit of power. To celebrate HOT ROD's 75th anniversary, we teamed up with ...

General Motors' LS engines and Ford's small-block V8s are some of the most famous motors in auto history, but can you combine ...

In the 1980s General Motors shifted away from small holes in the cylinder head and pushrod guide plates instead to what they refer to as “guided” rocker arms. These stamped rocker arms use two small ...

Any engine builder will tell you how important cylinder heads are to power and performance, so enthusiasts looking to spruce up their budget Chevy 305 small-block (SBC), or the larger and more popular ...