GSC Power-Division 5756 Valve Spring Kit for 13-23 Subaru BRZ/FR-S/86

Vehicle Fitment

• 2013-2023 Subaru BRZ (FA20)
• 2013-2016 Scion FR-S (FA20)
• 2017-2023 Toyota 86 (FA20)

Features

• High-performance single valve spring kit for FA20 engines
• Chromoly steel spring seats for strength and durability
• Titanium retainers reduce valvetrain mass
• Designed for high-revving and boosted applications
• Consistent seat pressure across all cylinders
• Handles engine speeds up to ~8,200 RPM
• Boost tolerance up to ~20 psi
• Direct OEM replacement with enhanced performance

Specifications

• Part Number: 5756
• Spring Type: Single cylindrical valve springs
• Install Height: ~1.279-1.298"
• Seat Pressure: ~89 lbs (intake) / 88 lbs (exhaust)
• Open Pressure @ ~0.846": ~182 lbs (intake) / ~181 lbs (exhaust)
• Coil Bind: ~0.782"
• Max RPM: ~8,200
• Max Boost Capacity: ~20 psi

Included Components

• 16x Valve Springs
• 16x Titanium Retainers
• 16x Chromoly Spring Seats

Product Description

The GSC Power-Division 5756 Valve Spring Kit is a high-quality upgraded valvetrain spring set engineered for Subaru BRZ, Scion FR-S, and Toyota 86 models equipped with the FA20 2.0 L boxer engine. Featuring chromoly steel seats and lightweight titanium retainers, this kit improves valvetrain stability and control at high engine speeds, making it well suited for both high-revving naturally aspirated and boosted builds.

Designed to handle up to approximately 8,200 RPM and around 20 psi of boost, the 5756 kit helps maintain consistent valve control under demanding conditions, reducing the risk of valve float and spring fatigue compared with stock components. Installation is direct OEM replacement, and the reduced mass from titanium retainers also contributes to quicker engine response. Whether you're building a tuned street car or a track-oriented BRZ/FR-S/86, this valve spring upgrade enhances performance and reliability in the valvetrain.