If you stop and think about it, one engine has made motorsports in the United States for nearly 50 years. The Offy was a great engine, as was the four-cam Ford. Who can forget the mighty Mopar hemis?

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 important ...

First, GM developed the new Impala SS exclusively for NASCAR Nextel Cup Competition. Now, it’s replacing the smallblock, second-generation (SB2) engine, NASCAR’s workhorse since 1998. Besides being ...