Modifications for your 5.3L Vortec V8 engine are a lot like eating potato chips ... you can't stop at just one. It starts innocently enough with a cold air intake, because hey, who doesn't want better ...

Inline Fever: GM Introduces Two New Inline Truck EnginesFollowing the lead of the successful Vortec inline-six engine that powers Chevrolet's TrailBlazer, General Motors has developed two additional ...

What happened to the big power numbers of the 454? The last generation big-block by GM (Vortec 454) leaves much to be desired when it comes to output. The Vortec big-block was gifted with a sequential ...

The Vortec 5.3L V8 LMG was an engine produced by General Motors for full-size SUVs. Displacing 5.3 liters in a V8 configuration, the LMG was part of the Vortec (Generation IV Small Block) engine ...

It’s back to the future, GM style. The automaker’s first inline six-cylinder engine since 1985 is bound for production next year, with 270 horsepower and 275 pounds-feet of torque. The Vortec 4200 ...

The initial dyno test included Fast Burn cylinder heads, a modified intake manifold, and high-profile aluminum valve covers (PN 10185064). GM Performance Parts (GMPP), the corporation's ...

We all know that exhaust headers were originally designed as a performance product. The equal-length pipes were designed to allow the exhaust gases to escape the cylinder, while at the same time ...

Any engine builder will tell you how important cylinder heads are to power and performance, so enthusiasts looking to spruce up their budget Chevy 305 small-block (SBC), or the larger and more popular ...