What is the main benefit of using dual valve springs?

Dual valve springs, like those in this kit, offer improved control over valve float at higher engine speeds. The combination of a primary and secondary spring helps maintain valve stability, which is crucial for performance and engine longevity under stress.

What is included in the Ferrea KT4030 spring kit?

This kit includes the necessary dual valve springs for the 2ZZ-GE engine. It is designed as a component for a complete valvetrain upgrade, so other parts like retainers or seals may need to be sourced separately based on your specific build.

Are special tools required for installing this valve spring kit?

Installing valve springs typically requires specialized tools such as a valve spring compressor and a leak-down tester. It is essential to refer to the manufacturer's installation instructions for the correct procedures and any specific tool recommendations.

Ferrea 2ZZ-GE Dual Spring Kit KT4030

Name: Ferrea Lotus Elise/Exige 1.8L 2ZZ-GE Endurance Dual Spring Kit
Brand: Ferrea
SKU: ferrea-ferrea-lotus-elise-exige-1-8l-2zz-ge-endurance-dual-spring-kit-t14-418953
Price: 1066.29 USD
Availability: BackOrder

Ferrea Lotus Elise/Exige 1.8L 2ZZ-GE Endurance Dual Spring Kit

$1066.29

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Ferrea 2ZZ-GE Endurance Dual Spring Kit KT4030 for Lotus Elise/Exige 1.8L.

Key Features

Fits Lotus Elise and Exige with the 1.8L 2ZZ-GE engine.
Endurance dual spring kit designed for high RPM and aggressive camshafts.
Dual spring design helps control valve float at high engine speeds.
Built with materials and design focused on durability and consistent performance.
Part number KT4030.

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Product Details

Ferrea is well-known for making high-performance valvetrain components, and this Endurance Dual Spring Kit is a prime example of their work for the Lotus Elise and Exige with the 1.8L 2ZZ-GE engine. If you're building or rebuilding the top end of your 2ZZ-GE, these dual springs are designed to handle the demands of higher RPMs and more aggressive camshaft profiles. They are built to provide reliable valve control under stress, ensuring your engine performs as it should when you push it.

This kit includes dual springs, which means you get a primary and a secondary spring working together. This setup is chosen for its ability to control valve float at high engine speeds and to provide a more stable valvetrain environment. The materials and design are focused on durability and consistent performance, even under the sustained high loads these engines can generate. Ferrea's attention to detail in their spring kits means you're getting a well-built component that's ready for serious use. When installing, pay close attention to the manufacturer's instructions regarding spring seat pressures and valve seal compatibility to ensure optimal performance and longevity.

This kit is a critical piece for anyone serious about maximizing the performance and reliability of their 2ZZ-GE engine. It's designed to work as part of a comprehensive valvetrain upgrade, so consider pairing it with other high-performance components to achieve your desired results. Ensure you have the correct tools and procedures for installing valve springs, as proper setup is key to unlocking the full potential of this endurance spring kit.