* Dodge Ram SRT-10 (2004-2006): This is a strong contender and often cited as having the highest horsepower for its time. It used a Viper V10 engine, boasting well over 500 horsepower.
* Ford SVT Lightning (various years): The SVT Lightning, particularly later iterations, offered significant horsepower with supercharged V8 engines. While exact figures vary by year, they were consistently in the high 300s to low 400s horsepower range.
Other trucks with high stock horsepower in that era include certain high-performance models from Chevrolet and GMC, but they typically didn't reach the levels of the Ram SRT-10 or the SVT Lightning. The exact figures depend heavily on the specific year and engine option.
To get a definitive answer, you'd need to consult detailed specifications for every high-performance truck model from every manufacturer across those years. That's a massive task, but the Ram SRT-10 is generally considered a top contender for sheer horsepower.
