GSC Power Division Exhaust Valve Guide Stopper

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

3063.001-1

Overview:

The GSC Power Division Exhaust Valve Guide Stopper is a precision-engineered component designed to enhance the durability and performance of your vehicle's FA20 engine. Crafted specifically for the Toyota 86 (2017–2020), Subaru BRZ (2013–2020), and Scion FR-S (2013–2016), this valve guide stopper helps maintain optimal valve alignment and reduces wear during high-performance operation.

Ideal for enthusiasts who demand reliability and precision from their engine components, this manganese bronze stopper with a +.001 inch outer diameter offers a robust upgrade over factory parts. Whether you are tuning for spirited street driving or track use, this valve guide stopper supports consistent valve function and longevity.

Key Features:

Engineered with quality and performance in mind, the GSC Power Division Exhaust Valve Guide Stopper offers the following benefits:

• Constructed from durable manganese bronze for excellent wear resistance and heat tolerance.
• +.001 inch outer diameter specification ensures a precise fit for improved valve guide sealing and reduced valve stem play.
• Designed specifically for the FA20 engine found in Toyota 86, Subaru BRZ, and Scion FR-S models within the specified year ranges.
• Enhances valve guide stability, reducing the risk of valve misalignment under high RPM and performance conditions.
• Supports engine reliability and longevity by minimizing valve guide wear during aggressive driving or tuning.
• Single unit packaging allows for targeted replacement or upgrade of individual valve guide stoppers.

Construction & Design:

This valve guide stopper is precision-machined from manganese bronze, a material known for its excellent combination of strength, wear resistance, and thermal conductivity. The +.001 inch outer diameter design provides a slightly oversized fit compared to stock components, improving the sealing surface and reducing valve stem movement.

The stopper’s design is tailored to the FA20 engine’s exhaust valve guides, ensuring compatibility and ease of installation without modification. This focus on material choice and dimensional accuracy helps maintain engine performance and durability, especially under demanding conditions.

Installation & Fitment:

The GSC Power Division Exhaust Valve Guide Stopper is a direct-fit replacement part for the exhaust valve guides on the FA20 engine in the following vehicles:

• Toyota 86 (2017–2020)
• Subaru BRZ (2013–2020)
• Scion FR-S (2013–2016)

Installation requires standard engine disassembly procedures for valve guide replacement. No special modifications or tuning are necessary beyond the typical mechanical installation process. This component is designed to integrate seamlessly with OEM valve train parts and aftermarket upgrades alike.

What's Included:

• One (1) manganese bronze exhaust valve guide stopper with +.001 inch outer diameter

Ideal For:

This valve guide stopper is perfect for:

• Performance enthusiasts upgrading or rebuilding the FA20 engine valve train.
• Drivers seeking improved valve guide durability and precision under high RPM conditions.
• Engine builders focused on enhancing reliability and longevity in tuned Toyota 86, Subaru BRZ, or Scion FR-S engines.
• Anyone replacing worn or damaged exhaust valve guide stoppers with a high-quality aftermarket option.