When it comes to high-revving Honda engines, the K20A2 cylinder head found in the EP3 Civic Type R and DC5 Integra Type R is regarded as one of the most efficient and well-designed heads ever produced. Honda’s engineering expertise shines through in this component, and it remains a popular choice among enthusiasts looking to unlock more power, whether through bolt-on upgrades, naturally aspirated builds, or even turbocharged applications.

At Type Two Online, we specialise in Honda tuning and performance parts, and we often recommend the K20A2 head as the foundation for reliable, efficient power gains. Let’s break down why this head is so effective and how you can upgrade it.

1. High-Flowing Port Design

The K20A2 cylinder head was designed with performance in mind. Its intake and exhaust ports are extremely well-shaped from the factory, allowing excellent airflow even without extensive porting work. This efficient port design supports high-RPM breathing, which is why the EP3 Civic Type R and DC5 Integra Type R make peak power at over 8,000 RPM straight out of the box.

👉 Upgrade your airflow with our Performance Intake Manifolds to take full advantage of the K20A2’s design.

2. Advanced VTEC System

The K20A2 head features Honda’s legendary DOHC i-VTEC system, which engages a high-lift cam profile at higher RPMs. This allows the engine to behave like two engines in one: efficient at low RPMs, but aggressive and free-flowing at the top end.

👉 Unlock more power by pairing your head with Upgraded Camshafts for K20 Engines and a K20 ECU Tuning Package.

3. Strong Aftermarket Support

Because the K20A2 cylinder head is so well engineered, it has become the go-to option for tuners worldwide. From naturally aspirated builds chasing 250+ horsepower to turbocharged applications producing well over 500hp, the head has proven its efficiency and strength.

At Type Two Online, we supply a wide range of performance upgrades for the K20A2, including:

• Valve Springs & Retainers – essential for high-RPM stability

• Upgraded Exhaust Systems – improved flow and sound

• Throttle Bodies – for sharper throttle response

4. Ideal for Swaps and High-Performance Builds

One reason the K20A2 head is so sought after is its popularity in K-Swaps. Builders often choose it for EK Civics, EG Civics, and even older Honda chassis due to its flow efficiency, strength, and aftermarket support.

👉 Check out our K-Swap Parts & Mount Kits to get your build started the right way.

5. Why Buy From Type Two Online?

If you’re considering upgrading or building a K20A2 cylinder head setup, sourcing the right parts is crucial. At www.typetwoonline.com, we supply genuine and high-quality aftermarket performance parts tailored to Honda enthusiasts.

We specialise in:

• Performance parts for EP3 Civic Type R and DC5 Integra Type R

• K20A2 engine upgrades

• Tuning advice and dyno support

• Worldwide shipping for Honda performance parts

When you shop with us, you’re not just buying parts—you’re investing in proven performance backed by expert knowledge.

The K20A2 cylinder head remains one of Honda’s most efficient designs, delivering a perfect blend of airflow, VTEC performance, and upgrade potential. Whether you’re fine-tuning your EP3 Civic Type R, building a high-revving DC5 Integra Type R, or planning a K-Swap, the K20A2 head is the foundation you need.

Browse our full range of Honda performance parts today at www.typetwoonline.com and take your build to the next level.