• GSC Single Valve Spring Kit w/ Titanium Retainers | Subaru Multiple Fitments (5743)
  • GSC Single Valve Spring Kit w/ Titanium Retainers | Subaru Multiple Fitments (5743)
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GSC Single Valve Spring Kit w/ Titanium Retainers | Subaru Multiple Fitments (5743)

GSC Single Valve Spring Kit w/ Titanium Retainers | Subaru Multiple Fitments (5743)

5743

In stock

$273.67 USD
$332.31 USD $273.67 USD
kADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The GSC Power Division Single Valve Spring Kit with Titanium Retainers is a high-performance upgrade designed specifically for Subaru EJ engine platforms. This kit features 16 cylindrical valve springs paired with CNC-machined titanium retainers, providing enhanced valvetrain stability and durability under aggressive driving conditions. Constructed with high-quality materials, the springs are engineered to support increased spring pressures and higher RPM operation, making them suitable for performance and racing applications. The titanium retainers reduce weight and improve overall valvetrain responsiveness, contributing to improved engine efficiency and longevity.

This valve spring kit is universally fit for Subaru models equipped with EJ engines, accommodating various chassis and model years. It is intended for use in performance builds, track days, or high-revving street applications where valvetrain reliability is critical. Installation involves replacing existing springs and retainers with these upgraded components, offering a direct bolt-on upgrade for compatible Subaru engines. The kit includes 16 springs and 16 titanium retainers, making it suitable for complete valvetrain reinforcement in performance-oriented setups.

Overview

GSC Power Division Single Valve Spring Kit w/ Titanium Retainers

Part #: 5743

Overview

The GSC Power-Division Single Valve Spring Kit with Titanium Retainers is a high-quality upgrade designed for Subaru EJ engine platforms. This kit includes 16 cylindrical valve springs and 16 CNC-machined titanium retainers, offering a reliable solution for enthusiasts seeking enhanced valvetrain stability and durability. Ideal for performance applications, this kit helps support aggressive cam profiles and high RPM operation while maintaining consistent seat pressure. It is suitable for those looking to improve engine response and longevity under demanding conditions, whether for street use or track days.

Key Features

This valve spring kit combines advanced materials and precise engineering to deliver consistent performance and durability. Key features include:
  • High-quality cylindrical valve springs designed for stability at high RPM
  • Lightweight CNC-machined titanium retainers for reduced valvetrain mass
  • Nano peened surfaces for increased fatigue resistance
  • Batch-tested for consistent seat pressure and performance
  • Designed to withstand high stress and heat conditions
  • Engineered for Subaru EJ engines, ensuring reliable fitment and function

Construction & Design

The springs are crafted from high-grade steel with a cylindrical wire design, optimized for durability and response. The titanium retainers are CNC-machined to tight tolerances, ensuring precise fitment and minimal weight. The nano peening process enhances surface hardness, reducing the risk of fatigue and failure over time.

Performance & Response

This kit helps improve valvetrain stability at high engine speeds, supporting aggressive cam profiles and high-performance tuning. The lightweight titanium retainers reduce reciprocating mass, contributing to smoother operation and potentially higher RPM limits. The consistent seat pressure ensures reliable valve sealing and engine response.

Installation & Fitment

Installation requires removal of the existing valve springs and retainers, with proper attention to valve timing and seating. Fitment should be verified against vehicle specifications and part number 5743 to ensure compatibility with your Subaru EJ engine.

What’s Included

The package includes 16 cylindrical valve springs and 16 titanium retainers, along with any necessary hardware for installation. Additional components or tools are not included.
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