Our 2RZ and 3RZ cylinder heads are available in various configurations to meet different needs, from standard replacements to enhanced high-performance options. The Stage 1 Cylinder Head offers a solid replacement with stock specifications, while the Stage 2 Cylinder Head includes porting, high-performance valve springs, and stainless-steel intake and exhaust valves for optimal airflow and power. Each new head is precision-engineered, offering a perfect seal and compatibility with components like head gaskets and timing chains to ensure seamless integration into your engine.
2RZ 3RZ Cylinder Head FAQs
What is included in the 2RZ/3RZ Stage 1 Cylinder Head?
The Stage 1 Cylinder Head includes 37.5mm stock intake valves, 30.5mm stock exhaust valves, Street Performer valve springs, OEM retainers, 6mm hardened keepers, and Viton valve seals. This head provides a high-quality replacement that fits perfectly in 2RZ/3RZ engines for those looking for reliable street performance.
What’s the difference between the Stage 1 and Stage 2 Cylinder Heads?
The Stage 2 Cylinder Head offers additional performance enhancements, such as performance porting and high-performance valve springs. It also includes stainless steel intake and exhaust valves with anti-friction coating, improving airflow and reducing resistance. This option is ideal for those seeking more power and efficiency from their 2RZ or 3RZ cylinder head.
Why is OEM casting important in these cylinder heads?
OEM Toyota casting provides the reliability and longevity required in high-performance applications. Our new cylinder heads use OEM castings exclusively, as we’ve found them superior to aftermarket options in quality and durability, ensuring these heads can withstand extreme conditions.
What are Viton valve seals, and why are they used in these cylinder heads?
Viton valve seals are heat-resistant seals that prevent oil from leaking through the valve guide and ensure better idling by sealing the valve stem. They withstand temperatures up to 440 degrees Fahrenheit, providing a perfect seal and enhancing the performance and lifespan of the cylinder head.
How do the intake ports differ between the cylinder head options?
We offer cylinder heads with either 4 intake ports or 8 intake ports to accommodate different 2RZ and 3RZ engine configurations. Each port setup is optimized for compatibility with the specific Toyota model and performance needs.
Can I use the Stage 1 Cylinder Head with my current camshaft?
Yes, the Stage 1 Cylinder Head is compatible with stock cam buckets and camshafts. However, we also provide all necessary valvetrain components should you wish to upgrade your existing head through a machine shop.
Does the Stage 2 Cylinder Head require any special installation steps?
The Stage 2 Cylinder Head may require additional shims and an upgraded shim-under bucket valve train kit if using Stage 2 camshafts. Ensure the head is torqued onto the engine block to complete the installation process, which will require professional assembly.
Are head gaskets included with the cylinder heads?
No, head gaskets are not included with the cylinder heads. However, we offer head gaskets, timing chains, and other essential components separately, allowing you to fully customize your setup for compatibility and performance.
Why choose a 2RZ/3RZ cylinder head with stainless steel intake and exhaust valves?
Stainless steel intake and exhaust valves are lighter and come with an anti-friction coating, which improves airflow and reduces wear in the valve guide. This upgrade is particularly beneficial for high-performance builds, as it enhances overall efficiency and valvetrain stability.
Is a water pump included with the cylinder heads?
A water pump is not included in the cylinder head packages but can be purchased separately. A quality water pump is recommended to maintain proper cooling in high-performance applications, especially when upgrading to a Stage 2 setup.
