GSC Power Division Exhaust Valve Guides

2012–2021 Subaru BRZ / Toyota GT86 / Scion FR-S 2.0L FA20

Part #: 3063

Overview

The GSC Power Division Exhaust Valve Guides are precision-engineered components designed specifically for the FA20 engine found in Subaru BRZ, Toyota GT86, and Scion FR-S models from 2012 to 2021. Crafted from high-quality manganese bronze, these guides are built to withstand the demanding conditions of performance driving, ensuring reliable valve operation and optimal engine performance.

If you're a performance enthusiast, a professional tuner, or someone restoring or maintaining your FA20-powered vehicle, these valve guides offer a durable solution to help maintain proper valve alignment and sealing. They are ideal for applications where engine longevity and consistent performance are priorities, especially in high-revving or modified engines.

Key Features

GSC Power Division's Exhaust Valve Guides are designed with precision and durability in mind. Here are some of the key features that make these guides an excellent choice for your FA20 engine:

• Constructed from manganese bronze, offering excellent wear resistance and thermal stability under high-temperature conditions.
• Precisely machined to exact OEM specifications, ensuring a perfect fit and reliable operation.
• Designed with a total length of 1.456 inches (36.98 mm) and an outer diameter of 0.3964 inches (10.07 mm), matching factory dimensions for seamless installation.
• Valve stem diameter of 5.5 mm, compatible with the stock FA20 valves, ensuring proper clearance and sealing.
• Manufactured with tight tolerances to promote optimal valve guide-to-valve stem fit, reducing oil consumption and preventing valve stem wobble.
• Engineered to withstand the rigors of high-performance applications, including forced induction and track use.
• Backed by GSC Power Division's standard manufacturer warranty, providing confidence in quality and longevity.
• Ideal for engine rebuilds, head repairs, or upgrades where valve guide wear has compromised engine performance.

Construction & Design

The GSC Power Division Exhaust Valve Guides are crafted from premium manganese bronze, a material known for its exceptional wear resistance and thermal conductivity. This choice of material helps dissipate heat effectively, reducing the risk of valve sticking or overheating during aggressive driving or extended high-RPM operation.

The guides are machined to precise dimensions using advanced manufacturing processes, ensuring a perfect fit within the cylinder head. Their design incorporates a smooth bore and consistent wall thickness to promote even oil distribution and minimize oil consumption. The guides' robust construction enhances durability, making them suitable for both stock and modified engines that experience increased stress and heat.

Installation & Fitment

The GSC Power Division Exhaust Valve Guides are designed as direct replacements for OEM guides, making installation straightforward for experienced technicians or skilled enthusiasts. No modifications, cutting, or drilling are required, and they fit precisely into the stock cylinder head bores. Proper installation may involve pressing the guides into place and ensuring they are seated correctly, but no special tuning or adjustments are necessary.

It is recommended to inspect and replace valve guides during head rebuilds or when performing valve jobs to restore proper valve stem clearance and prevent oil consumption issues.

What's Included

• One manganese bronze exhaust valve guide per package, designed specifically for FA20 engines in Subaru BRZ, Toyota GT86, and Scion FR-S models.

Ideal For

• Engine rebuilds and head repairs for FA20 engines
• Performance upgrades and modifications requiring durable valve components
• Restoration projects aiming to restore factory specifications
• High-performance driving, including track and spirited street use