GSC Power Division Exhaust Valve Guide Stopper

2017–2020 Toyota 86 / 2013–2020 Subaru BRZ / 2013–2016 Scion FR-S

3063.003-1

Overview:

The GSC Power Division Exhaust Valve Guide Stopper is a precision-engineered component designed specifically for the Toyota 86 (2017–2020), Subaru BRZ (2013–2020), and Scion FR-S (2013–2016) equipped with the FA20 engine. Crafted from durable manganese bronze with a +0.003 inch outer diameter, this valve guide stopper enhances the reliability and longevity of your engine’s exhaust valve system.

Ideal for performance enthusiasts and daily drivers alike, this stopper helps maintain optimal valve guide alignment and reduces wear under demanding conditions. Whether you are tuning your vehicle for spirited street driving or track use, the GSC Power Division Exhaust Valve Guide Stopper provides a robust upgrade to support your engine’s durability and performance.

Key Features:

This exhaust valve guide stopper offers several technical advantages that contribute to improved engine reliability and performance:

• Constructed from high-quality manganese bronze for excellent wear resistance and durability.
• Precision +0.003 inch outer diameter sizing ensures a secure fit and proper valve guide clearance.
• Designed specifically for the FA20 engine found in Toyota 86, Subaru BRZ, and Scion FR-S models within the specified years.
• Helps maintain valve guide alignment, reducing valve stem wear and improving valve train stability.
• Single-piece design for straightforward installation and reliable performance.
• Supports enhanced engine longevity under high RPM and performance driving conditions.
• Manufactured by GSC Power Division, a trusted name in high-performance engine components.

Construction & Design:

The valve guide stopper is crafted from manganese bronze, a material known for its excellent frictional properties and resistance to heat and wear. This choice of material ensures that the stopper can withstand the harsh environment inside the combustion chamber while maintaining precise tolerances.

The +0.003 inch outer diameter specification provides a slight oversize fit compared to standard valve guides, which helps to secure the stopper firmly in place and prevent unwanted movement during engine operation. This precision machining contributes to consistent valve operation and reduces the risk of premature valve guide failure.

Installation & Fitment:

The GSC Power Division Exhaust Valve Guide Stopper is designed as a direct fit replacement for the exhaust valve guides on the FA20 engine in the Toyota 86, Subaru BRZ, and Scion FR-S models listed. Installation requires standard engine disassembly procedures related to valve guide replacement.

No modifications such as cutting, drilling, or special tuning are necessary when installing this component, provided it is fitted by a qualified technician familiar with engine rebuilds or valve train servicing.

• Direct fit for FA20 engine exhaust valve guides.
• Compatible with factory valve guide dimensions plus +0.003 inch OD.
• Installation requires valve train disassembly and standard engine machine shop tools.

What's Included:

• One (1) manganese bronze exhaust valve guide stopper with +0.003 inch outer diameter.

Ideal For:

This valve guide stopper is ideal for:

• Performance enthusiasts upgrading or rebuilding the FA20 engine valve train.
• Daily drivers seeking enhanced engine durability and reliability.
• Track and motorsport participants requiring robust valve guide components.
• Engine builders and technicians performing maintenance or performance upgrades on Toyota 86, Subaru BRZ, and Scion FR-S models.

GSC Power Division specializes in high-performance camshafts and valvetrain components for import engines, including Subaru, Mitsubishi, Toyota, and Nissan models. Their products are designed to enhance engine performance in both street and race applications, offering improved mid-range and top-end power without sacrificing low-end torque.