Chevrolet CT602 vs CT604 Crate Engines: Which Circle Track Powerhouse Is Right for You?

If you’re building a competitive circle track car or upgrading your current setup, choosing the right engine can make all the difference.

Two of the most popular sealed crate engines from Chevrolet Performance are the CT602 Crate Engine and the CT604 Crate Engine. Both are designed for reliability, consistency, and affordability—but they serve slightly different purposes on the track.

And right now, Everett Performance Parts has 4 CT602 engines in stock, ready for your next build.

Let’s break down the differences and help you decide which engine fits your racing goals.

What Is the CT602 Crate Engine?

The CT602 is one of the most widely used entry-level crate engines in grassroots racing.

Key Specs:

• 350 cubic inch small-block V8
• ~350 horsepower
• Cast iron block and heads
• Hydraulic flat tappet camshaft
• Sealed design for rule compliance

Why Racers Choose the CT602:

• Affordable and widely available
• Built for durability and consistency
• Ideal for entry-level and budget-conscious classes
• Keeps competition close with limited modifications

The CT602 is all about driver skill over horsepower advantage, making it a favorite in many local and regional racing series.

What Is the CT604 Crate Engine?

The CT604 steps things up with more power and upgraded internals, making it a go-to option for more competitive classes.

Key Specs:

• 350 cubic inch small-block V8
• ~400 horsepower
• Aluminum cylinder heads
• Hydraulic roller camshaft
• Sealed for compliance in crate engine classes

Why Racers Choose the CT604:

• Increased horsepower and torque
• Improved airflow and performance
• Stronger mid-range power for acceleration out of corners
• Ideal for higher-tier or more competitive racing divisions

The CT604 gives drivers an edge when more performance is allowed within the rules.

CT602 vs CT604: What’s the Difference?

The Bottom Line:

• CT602 → Best for budget builds and tighter rule classes
• CT604 → Best for racers looking for more power and performance

Why Choose Chevrolet Performance Crate Engines?

Both engines are built with consistency and fairness in mind.

Benefits include:

• Sealed engines for rule compliance
• Reliable performance race after race
• Reduced need for custom engine building
• Proven track record across racing series nationwide

For racers, that means less time worrying about engine builds—and more time focused on winning.

In Stock Now at Everett Performance Parts

If you’re ready to build or upgrade your race car, now is the time.

We currently have 4 CT602 crate engines in stock at Everett Performance Parts—ready to go for your next project or race season.

Whether you’re just getting started in circle track racing or looking to stay competitive within your class, our team can help you choose the right setup.

Get Track-Ready Today

Choosing between the CT602 and CT604 comes down to your budget, class rules, and performance goals.

• Want affordability and consistency? Go CT602
• Need more power and competitive edge? Step up to CT604

Either way, Chevrolet Performance delivers engines you can trust when it matters most—on the track.

 Contact Everett Performance Parts today to check availability or reserve your engine.