V8 Speed and Resto Shop transformed this classic 1977 Pontiac Firebird into a 530 hp pro-touring restomod with serious Trans ...

Take a first look at the 1978 Pontiac Trans Am pro touring build as V8 Speed and Resto Shop transforms this classic into a ...

When first introduced in 1998 in our beloved Birds, the 346ci LS1 was the proverbial tip of the cubic-inch iceberg. Much like PMD's classic engine that began life as a 287 and evolved to a 455 with ...

Back in part one of our new GMPP LS3 testing ("Late Crate Update," Oct. '10), we subjected a factory-fresh LS3 crate motor from GM Performance parts to a series of performance upgrades, including a ...

It's not even Australia Day, but we're hearing GM's giving their high-performance team down under a gift of power. Holden's Special Vehicles team announced last night they'll be fitting the US-built ...

Since its introduction in the ’97 Corvette, GM’s LS-series V-8 has undergone a process of steady improvement, growing in displacement from 5.7 to as much as 7 liters and nearly doubling in available ...