GSC Power Division Exhaust Valve Guides

2004–2013 Porsche 996 / 997 Turbo 3.6L / 3.8L

Part #: 3057.003-1

Overview

The GSC Power Division Exhaust Valve Guides are precision-engineered replacement components designed specifically for Porsche 996 and 997 Turbo models from 1997 to 2013. Crafted to meet or exceed OEM standards, these guides ensure optimal valve operation and longevity, supporting your vehicle's performance and reliability. Whether you're rebuilding your engine or performing maintenance, these guides are an essential upgrade for enthusiasts seeking to maintain peak engine health.

Designed for high-performance applications and daily driving alike, these valve guides help maintain proper valve clearance and sealing, reducing the risk of oil consumption and valve stem wear. Their robust construction ensures durability under demanding conditions, making them suitable for both stock and modified engines. If you're looking to preserve engine integrity or restore it to factory specifications, these guides provide a reliable solution.

Key Features

GSC Power Division's Exhaust Valve Guides are built with precision and quality in mind, offering several key benefits:

• Manufactured from high-quality materials to meet OEM specifications, ensuring durability and proper fitment.
• Standard style with a +.003 inch oversize outer diameter, providing a precise fit for engines requiring slightly larger guides during rebuilds.
• Designed with a total length of 1.690 inches (42.93 mm) and an outer diameter of 0.4157 inches (10.56 mm), matching the original specifications for seamless installation.
• Valve stem diameter of 6mm, compatible with factory valves and components.
• Engineered to improve valve sealing and reduce oil consumption, contributing to cleaner emissions and smoother engine operation.
• Ideal for performance rebuilds, engine restorations, or maintenance to ensure long-term engine health.
• Backed by GSC Power Division's manufacturer standard warranty, providing confidence in quality and performance.

Construction & Design

Constructed from durable, high-grade materials, these valve guides feature a precise bore and outer diameter to ensure a perfect fit within the cylinder head. The oversize +.003 inch dimension allows for reaming or honing during engine rebuilds, accommodating slight wear or sizing requirements. Their design incorporates a smooth, finished surface to promote proper oil flow and minimize wear on the valve stems. The guides are manufactured with tight tolerances, ensuring consistent quality and reliable performance over many miles.

Installation & Fitment

Installing these valve guides requires standard engine rebuilding procedures, including removing the cylinder head, reaming or honing the guide bores, and pressing or fitting the guides into place. Their precise dimensions facilitate a straightforward installation process for experienced technicians. No special modifications or tuning are necessary, but proper reaming or honing is recommended to achieve the perfect fit. Always follow manufacturer specifications and best practices during installation to ensure optimal performance and longevity.

• Designed as direct replacements for OEM guides, ensuring a bolt-in fit with no additional modifications required.
• Compatible with factory valves and components, making them suitable for both stock and performance builds.
• Installation typically involves standard engine rebuild procedures; no cutting or drilling is needed.

What's Included

• One exhaust valve guide with +.003 inch oversize outer diameter
• Manufactured to meet OEM specifications for a precise fit and reliable operation

Ideal For

• Engine rebuilds and restorations for Porsche 996 and 997 Turbo models
• Performance enthusiasts seeking to maintain or improve engine durability
• Mechanics performing routine maintenance or addressing valve stem wear issues
• Owners aiming to reduce oil consumption and emissions through proper valve sealing