Gaining more power from a proven combination can be tricky. It's easy to do too much, forgetting that "bigger is better" isn't always true.In this case, we were looking to extract more power-and ...

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 ...

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 ...

In the early-'90s, GM introduced the Second-Generation LT1 small-block. It featured reverse-flow cooling and an aluminum cylinder head with a new port configuration. In essence, the company created ...

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