Having tested endless aftermarket and ported stock LS cylinder heads for HOT ROD, it seemed odd that the stock stuff was never included. A test of the popular factory cylinder heads has been a long ...

General Motors’ LS V8s are beyond commonplace in the car nut universe. People swap them into everything—Porsches included—and while they’re the quickest way to impress on a dyno, they aren’t exactly ...

Technically, with enough cutting and welding, you could probably make any combination of block and heads work for at least a few minutes. Slicing and dicing a set of Chevrolet LS or LT V8 heads to fit ...

In "LS1 Power Plan" (HPP Aug.-Oct. '08), our subject '00 WS6 T/A registered 381.1 rwhp and 365.8 lb-ft of torque, having gained an impressive 62.1 hp and 36.5 lb-ft. That "cam-only" configuration was ...

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 ...