How Much Horsepower Does a 602 Crate Motor Have?

-lbs. However, it’s important to note that these figures can vary depending on several factors such as the setup, tuning, and modifications done to the engine. The 602 crate motor is a popular choice among racers and enthusiasts due to it’s affordability, reliability, and competitive performance. This engine is commonly used in various forms of motorsports, including stock car racing and street performance applications. It’s impressive horsepower and torque numbers will surely make your adrenaline rush and your competitors sweat.

How Many HP Is a 602 Crate Motor?

The horsepower output of a 602 crate motor can vary depending on various factors such as modifications and enhancements. However, there are ways to boost it’s performance further.

The “Undercover Porting” technique involves careful and strategic modifications to the cylinder head, aiming to optimize airflow and create more efficient combustion. This process can enhance the motors ability to draw in air and fuel, leading to a more powerful and responsive performance.

The camshaft plays a crucial role in controlling valve timing and lift, allowing for improved air and fuel mixture management. With the right camshaft choice, the motor can experience heightened performance capabilities.

It’s essential to note that these horsepower figures are based on dyno tests, which provide a practical indication of real-world performance. However, actual horsepower outputs may still vary depending on various factors such as individual engine tolerances, fuel quality, and tuning.

However, by implementing “Undercover Porting” modifications to the cylinder head and upgrading to a Crate Master camshaft, it’s possible to achieve a dyno-tested output of around 410 to 420 horsepower.

The torque output of a 604 crate engine is quite impressive, as it typically gains an additional 25 ft. -lbs. of torque within the 2,500 to 4,500 rpm range simply by installing it. This improvement is even more significant for open motors, promising even greater performance.

How Much Torque Does a 604 Crate Engine Have?

When it comes to the torque produced by a 604 crate engine, the numbers are quite impressive. Simply by bolting them on, these engines are known to pick up an average of around 25 ft.-lbs. of torque in the range of 2,500 to 4,500 rpm. This additional torque is a welcome boost for any automotive enthusiast looking for an increase in power and performance.

Moreover, in the case of open motors, the torque gains can be even more significant compared to the figures mentioned before.

These engines are designed to offer a substantial increase in power output to ensure a thrilling driving experience.

Tips for Increasing Torque in a 604 Crate Engine Through Modifications or Tuning

  • Upgrade the exhaust system with performance headers and a high-flow catalytic converter.
  • Install a cold air intake system to improve air flow and increase horsepower.
  • Consider upgrading the fuel injectors for better fuel atomization and combustion.
  • Optimize the ignition timing and upgrade to a high-performance ignition system.
  • Tune the engine using a programmable engine management system to maximize torque.
  • Upgrade the camshaft to one with a higher lift and duration for increased torque.
  • Install a larger throttle body and intake manifold to improve airflow into the engine.
  • Consider upgrading the pistons and connecting rods to stronger and lighter components.
  • Balance and blueprint the engine for improved efficiency and performance.
  • Ensure the engine is properly tuned and calibrated for the modifications made.

Source: GM 604 Crate Engine

The 602 crate engine, with it’s 350-horsepower and 350-cubic-inch capacity, is a formidable choice for passionate weekend warriors in the circle track racing community. Known for it’s durability and affordability, this IMCA-sealed racing engine has become a popular option for those looking to enhance their performance without breaking the bank.

What Size Engine Is a 602 Crate?

The 602 crate engine is a popular choice among circle track racers. It’s a 350-horsepower, 350-cubic-inch racing engine that’s sealed by the International Motor Contest Association (IMCA). This means that the engine has been thoroughly inspected and approved by IMCA, ensuring that it meets their strict performance and durability standards.

Another advantage of the 602 crate engine is it’s versatility. It can be used in a variety of racing classes and tracks, making it a popular choice among racers. Whether youre competing on a dirt oval, asphalt track, or anything in between, the 602 crate engine is designed to deliver the power and performance needed to be competitive.

With it’s durability, power, and versatility, it’s become a go-to engine for weekend warriors looking to race on a budget.

Common Modifications or Upgrades Made to a 602 Crate Engine for Different Racing Classes

  • Installation of high-performance headers
  • Upgrading the intake manifold
  • Installing a high-flow carburetor
  • Modifying the ignition system with a performance distributor
  • Optimizing the camshaft for increased power and torque
  • Upgrading the valve springs for higher RPM operation
  • Installing a high-capacity oil pan for improved lubrication
  • Adding a performance air filter and cold air intake
  • Upgrading the fuel system with larger injectors or a fuel cell
  • Strengthening the bottom end with forged pistons and connecting rods
  • Optimizing the cylinder head flow through porting and polishing

The Chevrolet Performance CT350/602 Circle Track Crate Engine, also known as the “602 crate,” is a popular choice for circle track racing. With it’s 350 horsepower and 350-cubic-inch capacity, this engine is designed to be durable and reliable for weekend warriors on the track. Built with a four-bolt main block and Vortec cylinder heads, it offers a strong foundation for competitive racing. It’s dual-pattern camshaft ensures torque delivery between 2,000 and 5,500 rpm, making it a versatile option for various race classes. Best of all, this engine is affordable, making it accessible for racers with different budgets.

Is a 602 Crate Motor a 350?

The Chevrolet Performance CT350/602 Circle Track Crate Engine is a high-performance racing engine that’s often referred to as the “602 crate.”. It’s specifically designed for circle track racing and is favored by weekend warriors in the sport.

This engine is a 350-cubic-inch, 350-horsepower powerhouse that’s sealed for IMCA racing, ensuring fair competition on the track. It’s built to be reliable and durable, making it perfect for extended racing sessions.

With a strong four-bolt main block and iron Vortec cylinder heads, this engine offers superior strength and performance. It features a unique dual-pattern camshaft that helps deliver impressive torque, with over 300 lb-ft available between 2,000 and 5,500 rpm.

In terms of power delivery, this engine excels in the mid-range, peaking at a staggering 396 lb-ft of torque. This makes it ideal for the demands of circle track racing, where quick acceleration and high torque output are crucial.

Furthermore, the 602 crate engine is designed to fit into various racing budgets, making it accessible to a broader range of racers. It’s affordability combined with it’s reliability and performance make it a popular choice among circle track racers of all skill levels.

Moving on to performance specifications, the 602 late model engine exhibits impressive power capabilities. With a combination of lightweight springs and hydraulic lifters, it generates approximately 350 horsepower and 390 ft-lb of torque. It’s remarkable performance is accentuated by a redline peaking around 6,200 rpm.

How Much HP Does a 602 Late Model Have?

The 602 late model engine, a popular choice in the racing community, boasts impressive horsepower capabilities. In total, this engine can deliver up to 350 horsepower, showcasing it’s strength on the track. Additionally, it generates an impressive 390 ft-lb of torque, a measure of rotational force, enabling optimal acceleration and overall performance. These notable power figures are achieved through the implementation of lightweight springs and hydraulic lifters, allowing the engine to reach a redline of approximately 6,200 rpm.

One of the key factors contributing to the 602 engines performance is it’s lightweight design. By utilizing lightweight springs, the engine can rev higher, maximizing power output and unleashing the full potential of the vehicle. Furthermore, the inclusion of hydraulic lifters ensures consistent and efficient valve operation, enhancing overall engine performance.

These power figures allow for impressive acceleration and top speeds, enabling drivers to navigate the track with precision and confidence. The engines redline at around 6,200 rpm indicates it’s capacity to sustain high RPMs, further amplifying it’s overall performance.

It’s ability to deliver impressive horsepower and torque figures, coupled with lightweight components and efficient valve operation, contribute to it’s exceptional performance on the track. Whether powering through tight corners or reaching high speeds on straightaways, this engine has what it takes to provide drivers with an exhilarating experience.

The History and Evolution of the 602 Late Model Engine

  • The origin of the 602 Late Model Engine can be traced back to the mid-1990s.
  • It was developed as an affordable and reliable option for racers participating in late model stock car racing.
  • The 602 Late Model Engine was designed by General Motors and was based on their popular 350 small-block engine.
  • One of the main goals of the 602 engine was to provide a cost-effective alternative to more expensive racing engines.
  • It featured a sealed crate engine concept, meaning that the engine was delivered to racers with factory-sealed components.
  • The sealed concept ensured that all racers had equal access to the same engine specifications.
  • The 602 Late Model Engine quickly gained popularity among racers, especially in grassroots racing circuits.
  • It’s affordability and reliability made it accessible to a wide range of racers.
  • Over the years, the 602 engine has continued to evolve with updates and improvements.
  • Despite some controversies and debates about it’s performance, the 602 Late Model Engine remains a popular choice among many racers.

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When comparing the 603 and 604 crate motors, one significant difference lies in the quality and performance of their cylinder heads. While the 604 Crate stands out with it’s excellent cylinder heads, the 603 Crate falls short in this aspect for anything beyond 5,500 rpm. To gain a substantial advantage over your competitors, opting for the “UnderCover Ported” heads is highly recommended.

What Is the Difference Between 603 and 604 Crate Motors?

The difference between 603 and 604 crate motors lies primarily in their performance capabilities, particularly in terms of their cylinder heads.

To enhance the performance of the 603 Crate, many car enthusiasts recommend the installation of “UnderCover Ported” heads. These heads provide a significant advantage over the competition, allowing you to gain a substantial edge when racing against other vehicles. By replacing the stock heads with these specialized ported heads, you can improve the overall performance and power output of your 603 Crate motor.

These heads are designed to deliver optimal performance, even at higher RPMs. The superior quality of the 604 Crates heads suggests that it may require less modification or upgrades compared to the 603 Crate.

When seeking maximum performance and power from your engine, it’s crucial to consider the quality and efficiency of the cylinder heads.

Maintenance and Care Practices for Both the 603 and 604 Crate Motors, Including Recommended Oils and Fluids, and Regular Maintenance Intervals

  • Maintenance and care practices for both the 603 and 604 crate motors
  • Recommended oils and fluids for the motors
  • Regular maintenance intervals for the motors


-lbs, depending on the specific modifications made. This upgrade in horsepower and torque can greatly improve the performance and acceleration of vehicles equipped with the 602 crate motor. With a well-tuned engine and the right combination of modifications, this motor can deliver impressive power and performance on the race track or street. The stock '602 crate motor may already provide a decent amount of horsepower, but with the addition of cylinder head modifications and a Crate Master camshaft, it’s potential is greatly enhanced.

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