What is the primary benefit of a dual spring kit?

A dual spring kit uses an inner and outer spring for each valve. This design offers improved control over valve movement, significantly reducing the risk of valve float at high engine speeds and under heavy boost.

What kind of engine modifications is this kit best suited for?

This kit is designed for performance-oriented 4G63 engines, particularly those that have been upgraded with aggressive camshafts and are running higher boost levels from turbocharging. It's meant for enthusiasts looking to maximize their engine's high-RPM capabilities.

Does this kit include retainers or other valvetrain hardware?

The input data specifies this is a dual spring kit. It is recommended to consult the manufacturer's detailed product listing or contact them directly to confirm if retainers or any other specific valvetrain hardware are included with part number KT4012.

Ferrea 4G63 Turbo Dual Spring Kit KT4012

Name: Ferrea Mitsubishi Eclipse 4G63 Turbo Dual Spring Kit
Brand: Ferrea
SKU: ferrea-ferrea-mitsubishi-eclipse-4g63-turbo-dual-spring-kit-t14-418935
Price: 1066.29 USD
Availability: BackOrder

Ferrea Mitsubishi Eclipse 4G63 Turbo 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 Mitsubishi Eclipse 4G63 Turbo Dual Spring Kit

Key Features

Fits Mitsubishi Eclipse 4G63 Turbo.
Dual spring design helps prevent valve float at high RPMs.
Constructed from high-strength materials for durability.
Designed for performance turbocharged engines.
Part of Ferrea's line of high-performance valvetrain components.

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Product Details

Ferrea is well-known for making high-performance valvetrain components, and this KT4012 dual spring kit for the Mitsubishi Eclipse 4G63 Turbo is a prime example of their work. If you're building a high-revving 4G63 engine, especially one that sees a lot of boost, you need valvetrain components that can keep up. This kit is designed to handle the demands of aggressive camshafts and higher engine speeds.

This dual spring kit features an inner and outer spring for each valve. This design helps to prevent valve float at high RPMs by providing more control over the valve's movement. The springs are made from high-strength materials, chosen for their ability to withstand the repeated stress and heat generated in a performance turbocharged engine. Proper spring pressure is crucial for ensuring the valves close reliably and quickly, which is essential for maintaining engine power and preventing damage.

When installing this kit, it's important to ensure all components are correctly seated and that you follow the manufacturer's recommended installation procedures. This kit is intended for enthusiasts rebuilding or significantly upgrading their 4G63 engine. It's a solid choice for those looking to push their Eclipse's performance envelope safely and effectively.