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 ...

In part one of our Great Crate Update, we subjected a GM Performance Parts LS2 crate motor to a series of performance modifications, including a Comp Xtreme Energy cam, a FAST LSX intake, and two ...

The styling and classic status of the C1 Corvette will surely never run out of style, but its lack of horsepower might need some adjustments for these modern times. For thought, if one had a 1959 ...

Few cars in modern automotive history are as much of a total package as the modern GTO. With an incredibly stiff chassis, great handling characteristics, and seamless LS power, it is a true match made ...

If you're just tuning in, we're installing a Trick Flow GenX top-end engine kit, which features 225cc CNC-ported cylinder heads, a camshaft with 228/230-degrees duration at 0.050 and 0.585/0.585 lift ...

Here at GM Authority: The Ultimate Independent Destination for all things General Motors, we would like to think that you can stick an LS-motor in anything to improve it, but sometimes people find ...