602 Crate Engine: Specs and Where to Buy

Key Takeaways:

• The 602 crate engine is known for its affordability and solid performance, making it a popular choice for dirt track racing and budget-conscious racers.
• With 350 horsepower and a cast-iron block, it offers reliability and durability for long-term use in competitive environments.
• The 602 is versatile, allowing for modifications and upgrades to enhance performance without breaking the bank.
• It’s widely available new or used, through both GM dealers and aftermarket suppliers, making it accessible for various racing needs.
• Ideal for both beginners and experienced racers, the 602 delivers a balance of power and reliability, making it a trusted option.

Introduction

Crate engines are all about getting the most bang for your buck, and for me, the 602 has always hit that sweet spot. Whether you’re chasing performance or looking for a solid workhorse, this engine consistently delivers, and that’s why I keep coming back to it. Not only is it reliable, but it’s also affordable and easy to maintain—qualities that are essential when racing or working on performance projects. In this article, I’ll break down the specs, performance, and where to buy the 602 crate engine, along with some personal insights from my own experience.

1. Overview of the 602 Crate Engine

The 602 crate engine, a part of Chevrolet’s Performance lineup, has become a go-to for racers who need reliable power at an affordable price. I remember seeing this engine in action during a local dirt track race, and it performed like a champ. Watching it tear through laps without missing a beat convinced me that the 602 is an ideal choice for anyone looking to balance cost and performance.

• Manufacturer: General Motors (Chevrolet)
• Audience: Popular among circle track racers and performance hobbyists.
• Common Applications: Dirt track racing, street performance vehicles, and general motorsports.

2. Key Specifications of the 602 Crate Engine

What makes the 602 so attractive is its simplicity and durability. It’s built to take a beating and still perform well under intense racing conditions. Its specs, though not the most powerful on paper, offer a balance of power and reliability that I’ve come to appreciate.

• Engine Type: 350 cubic inches (CID) V8 with 4-bolt mains
• Material: Cast iron block and cylinder heads
• Compression Ratio: 9.12:1, offering a solid balance of power and efficiency
• Horsepower: 350 HP at 5,400 RPM
• Torque: 396 lb-ft at 3,800 RPM
• Fuel System: Carbureted
• Camshaft: Hydraulic flat tappet camshaft
• Crankshaft: Steel crankshaft for added durability
• Intake Manifold: Aluminum for better airflow and reduced weight

3. Performance Metrics of the 602 Crate Engine

I’ve worked with a number of engines over the years, but the 602’s combination of reliability and solid performance continues to impress me. You don’t always need the highest horsepower—sometimes, it’s about having an engine that can handle the rigors of racing without constantly needing repairs.

• Horsepower: The 602’s 350 HP is more than enough to stay competitive in most racing environments.
• Fuel Efficiency: While not a fuel-sipper, it provides a reasonable balance between performance and fuel consumption.
• Durability: The cast-iron block and sturdy components ensure long-lasting performance even in harsh conditions.
• RPM Range: Performs best in the mid-range, with torque peaking at 3,800 RPM and horsepower peaking at 5,400 RPM.

4. Typical Uses for the 602 Crate Engine

The 602 crate engine is versatile enough to be used in a variety of settings. I’ve seen it perform well in both dirt track racing and street applications. Its reliability and ease of maintenance make it a favorite for many performance enthusiasts.

• Dirt Track Racing: The 602 is a mainstay in dirt track racing, particularly in IMCA-sanctioned events, where racers need a strong and consistent engine.
• Street Use: Though primarily designed for the track, the 602 can be adapted for street performance with some modifications.
• Other Motorsports: It’s also found success in other types of motorsports, including drag racing, where durability is just as important as speed.

5. Maintenance and Upkeep

Maintaining a 602 engine is straightforward, and from my experience, the effort you put into routine maintenance pays off in longevity. Over the years, I’ve learned that staying ahead on basic upkeep can save you from bigger issues down the line.

• Routine Maintenance: Regular oil changes, spark plug inspections, and cleaning the air filter are musts for keeping the 602 in top shape.
• Common Issues: Overheating can occur if the engine is pushed hard without proper care, but this can usually be avoided with regular checks on the cooling system and valve train.
• Cost of Maintenance: I usually set aside a few hundred dollars per season for maintenance, but it’s a small price to pay for the performance and reliability the 602 offers.

6. Modifications and Upgrades

If you’re looking to push your 602 to the next level, there are plenty of modifications you can make. One of the things I love about this engine is how easy it is to customize without needing to throw piles of money at it. Simple upgrades can lead to noticeable improvements in performance.

• Performance Tuning: Tuning the carburetor and ignition system can help unlock more horsepower and torque.
• Popular Upgrades:
  • Camshaft upgrades for better throttle response and higher RPM range
  • Aluminum cylinder heads to reduce weight and improve airflow
  • High-performance exhaust systems to increase power output
• Upgrade Costs: Depending on your goals, modifications can cost anywhere from $500 to $2,000, which is a great price range for the performance gains you get.

7. Pricing Breakdown of the 602 Crate Engine

The 602 crate engine is one of the more affordable options for racers, and whether you buy new or used, it’s easy to see why it’s a popular choice. Personally, I’ve bought parts from both GM dealers and online suppliers, and it’s always a good idea to weigh your options based on your budget and needs.

• New Engines: Buying new from GM dealers will typically cost between $5,500 and $6,000.
• Used Engines: Used engines are generally priced between $2,500 and $4,000, depending on their condition.
• Rebuilt Engines: Rebuilt engines, which come with fresh parts, can range from $3,500 to $5,000.

8. Where to Buy the 602 Crate Engine

I’ve had the best experiences buying from reliable sellers like Summit Racing and JEGS. You can also find great deals on forums, but it’s crucial to know what you’re buying and to check the engine’s condition thoroughly.

• Authorized GM Dealers: If you want a new engine with a warranty, buying from a GM dealer is a good choice.
• Aftermarket Suppliers: Summit Racing, JEGS, and Speedway Motors are great places to find both new and used 602 crate engines.
• Used Engine Market: Websites like eBay and racing forums offer used engines, but be sure to ask for detailed information and check the engine’s history before purchasing.

9. Comparing the 602 Crate Engine to Alternatives

While the 602 has always been my go-to, I’ve worked with other crate engines as well. Here’s how it compares to some alternatives.

• 604 Crate Engine: The 604 offers more power (around 400 HP), but it comes at a higher price, making the 602 a more budget-friendly option for racers who don’t need the extra horsepower.
• Other GM Crate Engines: Options like the ZZ6 or LS series offer different performance characteristics, but for dirt track racing, the 602’s reliability is hard to beat.
• Non-GM Alternatives: Ford and Mopar also produce engines in this class, but I’ve always found GM’s 602 to be more accessible and easier to maintain.

10. Case Study: The 602 Crate Engine in Racing

A few seasons back, I worked with a local racing team that ran a 602 crate engine for an entire season. Despite the high demands of dirt track racing, the engine held up remarkably well. We kept up with the routine maintenance, and it performed consistently throughout the season. It’s this kind of reliability that makes the 602 so popular in competitive racing circles.

11. Future of the 602 Crate Engine

I don’t see the 602 going anywhere anytime soon. As racing regulations evolve, the 602 will continue to adapt and remain relevant for years to come. With a growing focus on eco-friendly engines, GM may eventually explore hybrid models or more sustainable options. But for now, the 602’s combination of affordability and performance keeps it in high demand.

Conclusion

The 602 crate engine has proven itself as a reliable and cost-effective option for racers and performance enthusiasts alike. Whether you’re tearing up a dirt track or modifying it for street use, this engine delivers solid performance without the high price tag of more powerful alternatives. Its durability, ease of maintenance, and availability of upgrades make it an excellent choice for anyone looking to balance power and budget.

From my personal experience, the 602 is more than just an entry-level engine—it’s a trusted powerhouse that delivers when it matters most. Whether you’re a seasoned racer or just getting started, you can count on the 602 to provide consistent, reliable performance race after race.

FAQs About the 602 Crate Engine

Q1: What vehicles can use the 602 crate engine?
A: The 602 is popular in dirt track racing but can be adapted for street use with the right modifications.

Q2: Can the 602 crate engine be modified for street use?
A: Yes, with some tuning and legal adjustments, the 602 can perform well in street vehicles.

Q3: How does the 602 compare to the 604 crate engine?
A: The 604 offers more power but comes at a higher cost, making the 602 a more budget-friendly option.

Q4: Is the 602 crate engine reliable for long-term use?
A: Absolutely, when properly maintained, the 602 has proven to be a durable and long-lasting engine.

Q5: Where is the best place to buy a used 602 crate engine?
A: Trusted sellers like Summit Racing and JEGS, as well as platforms like eBay and specialized racing forums, are good options.

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