SB2 aluminum cylinder heads have neither siamesed intake ports (like a conventional Chevy small-block) or symmetrical ports (like a Ford V8). Rather, the runners are arrayed in an innovative ...

Since the early days of "Power Packs" and "Fuelie" cylinder heads, head swapping has been a proven path to higher performance. The SB2 engine package follows this tradition—with several very ...

When Chevrolet debuted the SB2 V-8 engine back in 1998, it was engineered and produced for a single purpose: NASCAR Cup racing. That meant solid flat tappet lifters, a mechanical fuel pump ...

The year was 1955. President Eisenhower resided in the White House, Rosa Parks refused to sit at the rear of the bus, and the Brooklyn Dodgers defeated the New York Yankees in the World Series.

When GM’s 1955 engine architecture wasn’t up to the Toyota challenge, the automaker responded with a whole new design. First, GM developed the new Impala SS exclusively for NASCAR Nextel Cup ...