Hey gearheads and car enthusiasts! Today, we're diving deep into the heart of a legend: the 2004 Cadillac CTS-V engine specs. If you're like me, you appreciate the raw power and unique engineering that went into this first-generation CTS-V. This wasn't just any Cadillac; it was a serious performance machine designed to take on the best European sedans of its era. Let's get into the nitty-gritty of what made this beast tick, focusing on the engine specifications that defined its thrilling performance. We'll explore its displacement, horsepower, torque, and the technology that allowed it to punch way above its weight class. Get ready to geek out with me on the specs that made the 2004 CTS-V a standout.

The Heart of the Beast: LS6 V8 Power

So, what powered this formidable sedan? The 2004 Cadillac CTS-V engine was none other than the legendary GM LS6 V8. This wasn't just any V8; it was a performance-tuned version of the popular LS-series engines, shared with the iconic Chevrolet Corvette Z06 of the same era. Talk about pedigree! The LS6 is a 5.7-liter (346 cubic inch) V8, built with an aluminum block and aluminum cylinder heads. This choice of materials not only helped reduce weight, contributing to better handling, but also allowed for excellent thermal efficiency. The engine featured a relatively high compression ratio for its time, pushing out a healthy 400 horsepower at 6,000 RPM and 395 lb-ft of torque at 4,800 RPM. These weren't just numbers; they translated into serious acceleration and a driving experience that was exhilarating. The engine's roar, coupled with the firm suspension and sharp steering, created a symphony of performance that truly surprised many.

Technical Marvels Under the Hood

Let's break down some of the key engine specifications that contributed to the LS6's impressive output in the 2004 Cadillac CTS-V. The engine utilized a dry-sump lubrication system, a feature typically found in racing applications. This system ensures consistent oil supply even under extreme G-forces, preventing oil starvation during hard cornering or acceleration. It's a testament to Cadillac's commitment to making this car a true performer. The camshaft was a high-lift, roller design, optimized for better airflow and improved volumetric efficiency. The cylinder heads were ported and polished for smoother intake and exhaust flow. Intake was managed by a high-flow air intake system, and exhaust gases were expelled through a dual exhaust system designed for both performance and a throaty sound. Fuel delivery was handled by an electronic throttle body and multi-port fuel injection, ensuring precise fuel control for optimal power and efficiency. The engine management system was also tuned specifically for the CTS-V application, taking into account its weight, aerodynamics, and intended use. It was a finely tuned package, designed to deliver maximum performance without compromising reliability, a hallmark of the LS-series engines.

Drivetrain and Transmission: Putting Power to the Pavement

Having a powerhouse engine is one thing, but effectively getting that power to the wheels is another. The 2004 Cadillac CTS-V engine was paired with a Tremec T-56 6-speed manual transmission. Yes, you read that right – a manual transmission in a Cadillac sedan! This was a crucial decision that cemented the CTS-V's performance credentials. The T-56 is a robust and highly regarded gearbox known for its crisp shifts and durability. It allowed drivers to fully exploit the LS6 engine's powerband, making the most of every gear. The clutch was also beefed up to handle the V8's torque. Power was sent to the rear wheels via a limited-slip differential, which is essential for putting down the power effectively, especially during spirited driving. This RWD (Rear-Wheel Drive) setup, combined with the manual transmission and potent V8, provided a driving dynamic that was engaging and satisfying for enthusiasts. It’s this focus on the driving experience, not just brute force, that set the 2004 CTS-V apart. The gear ratios were carefully selected to complement the engine's power curve, offering strong acceleration in lower gears and comfortable cruising on the highway in the higher gears. The clutch pedal feel was also noted for being firm yet progressive, offering good feedback to the driver.

Performance Metrics That Impressed

With such a potent combination of engine and drivetrain, the 2004 Cadillac CTS-V delivered performance figures that were seriously impressive for a luxury sedan. Zero to sixty miles per hour was typically clocked in the mid-to-high 4-second range. For context, this was faster than many sports cars of the time! The quarter-mile times were usually in the low 13-second range. Top speed was electronically limited, but without the limiter, it was capable of exceeding 170 mph. These numbers weren't just theoretical; they were a result of the finely tuned engine specs and the cohesive engineering of the entire vehicle. The car's handling was also significantly improved over the standard CTS, thanks to stiffer springs, larger anti-roll bars, and upgraded dampers. The steering was more direct, and the brakes, courtesy of Brembo, were significantly larger and more powerful, providing excellent stopping power. It was a complete performance package that proved Cadillac could indeed build a world-class performance sedan that could compete on any track or any road.

Engine Design and Technology

Delving deeper into the 2004 Cadillac CTS-V engine specifications, we find a design philosophy focused on performance and reliability. The LS6 engine, as mentioned, is an overhead valve (OHV) V8, a classic configuration known for its simplicity and torque production. However, GM engineers infused it with modern technology. The aluminum construction, as noted, aids in reducing overall vehicle weight, improving both acceleration and handling dynamics. The engine's bore and stroke dimensions contribute to its displacement of 5.7 liters. The valvetrain features roller rocker arms, which reduce friction compared to traditional flat-tappet designs, allowing for more power and improved durability. The ignition system is distributorless, utilizing coil-on-plug technology for precise spark delivery to each cylinder, enhancing combustion efficiency and reducing emissions. The engine's internal components, such as the forged steel crankshaft and connecting rods, were designed to withstand the increased stresses associated with higher horsepower output. Piston cooling jets were also incorporated to help manage temperatures under high load. This attention to detail in the engine specs ensured that the LS6 was not just powerful but also a robust and reliable powerplant capable of sustained high-performance driving.

Cooling and Lubrication Systems

Ensuring the longevity and consistent performance of the 2004 Cadillac CTS-V engine relied heavily on its cooling and lubrication systems. The dry-sump lubrication system is a standout feature. Unlike a conventional wet-sump system where the oil resides in a pan beneath the engine, a dry-sump system uses a separate oil tank. This allows for a lower engine mounting point, which in turn lowers the car's center of gravity, a crucial factor for improved handling. It also ensures that the oil pump always has a consistent supply of oil, regardless of acceleration, braking, or cornering forces, preventing oil cavitation and starvation. The cooling system employed a high-capacity radiator and a performance-oriented water pump to manage the heat generated by the potent V8. The engine's internal passages were designed to optimize coolant flow, ensuring even temperature distribution throughout the block and heads. The choice of coolant and the system's pressure were also critical factors in maintaining optimal operating temperatures. These sophisticated systems worked in harmony to keep the LS6 engine running smoothly and powerfully, even when pushed to its limits, highlighting the meticulous engineering behind these engine specifications.

The Legacy of the 2004 CTS-V Engine

The 2004 Cadillac CTS-V engine and its specifications have left an indelible mark on automotive history. It proved that Cadillac could shed its traditional image and produce a true performance luxury sedan that could compete with, and often beat, established European rivals. The use of the LS6 V8, a proven and potent powerplant, was a masterstroke. It provided the necessary grunt while also offering a level of reliability and aftermarket support that was unmatched in its class. This combination of American muscle and European handling refinement created a unique and highly desirable package. The engine specs were not just about raw numbers; they represented a philosophy of performance engineering that prioritized driver engagement and exhilarating driving dynamics. It paved the way for future generations of the CTS-V, each building on the success of this groundbreaking first model. For enthusiasts and collectors, the 2004 CTS-V remains a sought-after machine, a testament to a time when Cadillac dared to be different and succeeded spectacularly. It’s a car that truly delivered on its promise of performance, comfort, and style.

Why These Specs Still Matter Today

Even today, the 2004 Cadillac CTS-V engine specs are a point of fascination for automotive enthusiasts. The 400 horsepower and 395 lb-ft of torque from a naturally aspirated 5.7-liter V8 remain impressive figures, especially considering the era. The LS6 engine itself is legendary for its durability, tunability, and the incredible sound it produces. Many owners continue to maintain and even upgrade these vehicles, appreciating the raw, analog driving experience they offer. The manual transmission, a rare find in luxury sedans, adds to its appeal. In a world increasingly dominated by turbochargers and complex hybrid systems, the straightforward, powerful nature of the LS6 V8 in the CTS-V offers a refreshing alternative. The engine specifications represent a perfect storm of performance tuning, robust engineering, and a clear vision for what a performance luxury sedan could be. It's a benchmark that set a high bar for subsequent models and continues to be celebrated by car lovers worldwide. The legacy is secure, and the performance speaks for itself.