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

Throwing speed parts at stock engines is about as pure as hot rodding gets. From stacking carburetors on utilitarian flat-head Ford engines to bolting a big blower on a world-weary small-block, the ...

As the first of the rectangle-port cylinder heads that subsequently came through the years (i.e. LS3, L92), the LS7 cylinder head still reigns supreme as the best-flowing two-valve production ...

The question of the day seems to involve the difference between the original cathedral-port and modern rectangular-port LS heads. More specifically, which one is better? Were we to compare two sets of ...