What is the primary benefit of using dual valve springs?

Dual valve springs offer improved valve stability and better dampening compared to single springs. This design helps prevent valve float, especially at higher RPMs and under increased boost pressure, leading to more consistent engine performance.

What material are these valve springs made from?

These valve springs are constructed from high-tensile strength steel. This material is chosen for its ability to withstand the repeated stress of engine operation without losing tension or failing.

What is the spring rate, and why is it important for performance engines?

The spring rate is 254 pounds per inch, indicating the force required to compress the spring. A higher spring rate is crucial for high-performance engines to maintain solid valve control at higher RPMs and under increased boost, preventing valve float and ensuring reliable operation.

Ferrea 4G63/4G63T Dual Valve Spring Set S10036

Name: Ferrea Mitsubishi 4G63/4G63T 254lbs Rate Inch Dual Valve Spring - Set of 16
Brand: Ferrea
SKU: ferrea-ferrea-mitsubishi-4g63-4g63t-254lbs-rate-inch-dual-valve-spring-set-of-16-t14-419045
Price: 552.14 USD
Availability: BackOrder

Ferrea Mitsubishi 4G63/4G63T 254lbs Rate Inch Dual Valve Spring - Set of 16

$552.14

On Backorder

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

Ferrea 4G63/4G63T dual valve spring set, 254lb rate. For high-performance Mitsubishi engines.

Key Features

This product includes a set of sixteen (16) Ferrea dual valve springs.
Each spring has a rate of 254 pounds per inch.
Designed for Mitsubishi 4G63 and 4G63T engines.
Constructed from high-tensile strength steel for durability.
Dual spring design offers improved valve stability and dampening.

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Product Details

This set includes sixteen (16) Ferrea dual valve springs, designed to handle the demands of high-performance Mitsubishi 4G63 and 4G63T engines. These springs are rated at 254 pounds per inch, which is crucial for keeping valve control solid at higher RPMs and under increased boost pressure. When you're building a performance engine, especially one that sees a lot of track time or aggressive street use, the valve springs are a critical component that needs to be up to the task.

Ferrea is known for making well-built valvetrain components, and these springs are no exception. They are constructed from high-tensile strength steel, ensuring they can withstand the repeated stress of opening and closing thousands of times per minute without losing their tension or breaking. The dual spring design offers increased stability and better dampening compared to single springs, which helps prevent valve float even when you're pushing the engine hard. This improved valve control means more consistent power delivery and a more reliable engine under stress.

Installing these springs is typically part of a larger engine rebuild or performance upgrade. You'll want to ensure you have the proper tools for valve spring compression and installation, as well as follow the manufacturer's recommended procedures for seating them correctly. Having the right valve springs is a key step in building a robust and responsive engine that can handle the power you're aiming for.