A stock-based GM 4.3L V6 shocks the dyno with 1,400 horsepower at 33 PSI, proving this twin-turbo truck engine is far stronger than expected.

From turbo LS builds to boosted Coyotes and nitrous 392 Hemis, here are eight smart, streetable ways to make 700 horsepower ...

The LM7 engine, found in Chevy Tahoes and Cadillac Escalades, can be transformed into a high-performance powerhouse capable ...

The LM7 engine, found in Chevy Tahoes and Cadillac Escalades, can be transformed into a high-performance powerhouse capable of reaching over 1,000 hp.

A father faces an unexpected conflict when his son proposes swapping out the original engine […] ...

The General Motors 5.3L small-block V8 did not become ubiquitous by accident. It earned its place under the hoods of Chevrolet and GMC trucks by combining old-school durability with just enough modern ...

For many builds, LS performance parts for sale make sense when the project goals are clear, since defining whether power or reliability comes first helps avoid unnecessary purchases.

Few engine families go down quite so well in the history books as Chevrolet's iconic LS series. The family consists of powerful small-block V8 engines, and they've been seen in everything from ...

To get the most power out of your hot rod or performance car, the most sensible approach may be to simply replace the engine.

There's a reason why gearheads put both LS (not to be confused with LT) and Vortec engines under the same umbrella of "LS", despite GM originally assigning them different badges. (And in case you're ...

Add Yahoo as a preferred source to see more of our stories on Google. There's a reason why gearheads put both LS (not to be confused with LT) and Vortec engines under the same umbrella of "LS", ...