The difference between LS and Vortec engines (and why fans love them)

Although Vortec engines fall under the "LS" branding, they aren't actually the exact same as more traditional LS engines made by General Motors.
Hot Rod

History of the LS Engine and Cylinder Head Casting Number Spotter’s Guide: LS1, LS6, LS2, LS3, LS4, L99, LS7, LSA, LS9, LQ9, LQ4, L92, L94

Back in the early 1990s the Gen II LT1 and LT4 engines powered GM's hottest performance cars, but GM read the tea leaves and knew that this platform would not be able to get them where they would ...
Top Speed on MSN

The GM engine family is so reliable it's still in production after 30 years

This American power unit has a track-record unlike any other modern V-8 engine.
Motor Trend

General Motors LS Series Engine Build - Tech Project

LS Technology sounds like a new concept, but the fact of the matter is that it is over a decade old. GM Truck and SUV owners have been using the engines for years and have not realized it. "LS-Series" ...
Motor Trend

Mast Motorsports LS Engine Insight - CHP Insider

No matter what happens to the LS over the next decade, it's here to stay and will quickly replace the traditional small-block Chevy. I believe that the trend from Mouse to LS engines is happening much ...