Supertech Performance Engine Valve Guide
Supertech Performance GDE-H66-I-8 Manganese Bronze Intake Valve Guides 6.6mm
Supertech Performance GDE-MIN-R56-STD-8 Manganese Bronze Valve Guide Set for Mini Cooper R56
Supertech Performance GDE-T4AG-SM-8 Manganese Bronze Valve Guides for Toyota 4AGE 6mm Stem
Supertech Performance GDE-NSR6-I-8 Manganese Bronze Intake Valve Guides for Nissan SR20DET 6mm Stem
Supertech Performance GDE-NSR6-E Magnesium Bronze Valve Guide Sold Individually
Supertech Performance GDE-TS55-I Magnesium Bronze Valve Guide
Supertech Performance GDE-NSR7-ET Magnesium Bronze Valve Guide
Supertech Performance GDE-NSR6-I Manganese Bronze Intake Valve Guide Stem - 6mm
Supertech Performance GDE-HS255-E Magnesium Bronze Valve Guide
Supertech Performance GDE-MI66-STI Magnesium Bronze Valve Guides
Supertech Performance GDE-MI66-STE Manganese Bronze Exhaust Valve Guide 6.6mm Stem Standard OD
Supertech Performance GDE-MI66-I Magnesium Bronze Valve Guide Sold Individually
Supertech Performance GDE-MI66-E Magnesium Bronze Valve Guide
Supertech Performance GDE-HK55-I Magnesium Bronze Valve Guide
Supertech Performance GDE-HB55-I Manganese Bronze Intake Valve Guide Stem - 5.5mm
Supertech Performance GDE-HB55-E Magnesium Bronze Valve Guide
Supertech Performance GDE-BMW-N55-I-12 Intake Valve Guide for BMW N55 Engine
Supertech Performance GDE-NVR38-E-OS1 Valve Guide Exhaust Copper Alloy
Supertech Performance GDE-T2JZ-I Valve Guide Magnesium Bronze
Supertech Performance GDE-MIN-R56-STD Valve Guide Manganese Bronze
Supertech Performance GDE-MEVOX-OS Oversized Exhaust Valve Guide Magnesium Bronze
Supertech Performance GDE-FIA2500 Manganese Bronze Valve Guide Intake & Exhaust
Supertech Performance GDE-T2JZ-E Valve Guide Magnesium Bronze
Supertech Performance GDE-NVR38-I-OS1 Valve Guide Manganese Bronze Performance
Supertech Performance GDE-HK55-E Magnesium Bronze Valve Guide Sold Each
Supertech Performance GDE-HD55-I Magnesium Bronze Valve Guide
Supertech Performance GDE-HD55-E Magnesium Bronze Valve Guide
Supertech Performance GDE-VW8V-7A Magnesium Bronze Valve Guide
Supertech Performance GDE-SUEJ6-I Magnesium Bronze Valve Guide
Supertech Performance GDE-SUEJ6-E Magnesium Bronze Valve Guide Sold Individually
Supertech Performance GDE-BMS14-7-OS1-8 Valve Guide 12.30mm OD 45mm Length
Supertech Performance GDE-HS255-I Magnesium Bronze Valve Guide
Supertech Performance GDE-H66-I Manganese Bronze Intake Valve Guide 6.6mm
Supertech Performance GDE-H66-E Magnesium Bronze Valve Guide Sold Each
Supertech Performance GDE-NSR6-ET Magnesium Bronze Valve Guide
Supertech Performance GDE-MA20FS Valve Guide Manganese Bronze
Supertech Performance GDE-NSR6-E-12 Exhaust Valve Guide 6mm Manganese Bronze
Supertech Performance GDE-HD55-E-8 Manganese Bronze Exhaust Valve Guides for Honda D/K Series 5.5mm
Supertech Performance GDE-HB55-I-8 Manganese Bronze Intake Valve Guides 5.5mm Stem Honda B/H Series
Supertech Performance GDE-HB55-E-8 Manganese Bronze Exhaust Valve Guides for Honda B/H Series
Supertech Performance GDE-H66-E-8 Manganese Bronze Exhaust Valve Guide Set Honda LS H23 6.6mm Stem
Supertech Performance GDE-DUR16-8 Valve Guide Set Ford Duratec Mazda MZR 2.0L 2.3L
Supertech Performance GDE-DUR16-6MM-8 Valve Guides 6mm Stem Mazda MZR 2.3L
Supertech Performance GDE-BMW-S54-EI-12 Valve Guide Set for BMW S54 Engine
Supertech Performance GDE-MIN-R53-8 Manganese Bronze Valve Guides 6mm Stem
Supertech Performance GDE-MI66-STI-8 Intake Valve Guides for Mitsubishi 4G63
Supertech Performance GDE-MI66-STE-8 Exhaust Valve Guide Set for Mitsubishi 4G63 - 6.6mm Stem
Supertech Performance GDE-MI66-I-8 Intake Valve Guide Set for Mitsubishi 4G63
Supertech Performance GDE-MI66-E-8 Exhaust Valve Guide Set for Mitsubishi 4G63
Supertech Performance GDE-SUEJ6-E-8 Manganese Bronze Exhaust Valve Guides for Subaru EJ20/EJ25
Supertech Performance GDE-NSR7-ET-8 Exhaust Valve Guides for Nissan SR20DET RB26 7mm Stem
Supertech Performance GDE-NSR7-ET-12 Exhaust Valve Guides for Nissan SR20DET/RB26DETT 7mm Stem
Supertech Performance GDE-NSR6-I-12 Manganese Bronze Intake Valve Guide 6mm Stem 12-Pack
Supertech Performance Engine Valve Guides: Precision-Machined for the Demands of Racing
When a performance engine build demands nothing but the best from every component, valve guides are often an overlooked yet critical piece of the puzzle. Supertech Performance has built its reputation over more than 30 years as a leading manufacturer of valvetrain components, and their engine valve guides reflect that same uncompromising engineering philosophy. These guides are not afterthoughts — they are precision components designed to keep valves moving with accuracy, stability, and longevity under extreme conditions.
Material Engineering: Manganese Bronze and Copper Alloy
Supertech's approach to valve guide materials is one of the clearest expressions of their engineering depth. Intake valve guides are manufactured from high-quality manganese bronze, a material prized for its combination of strength, wear resistance, and compatibility with modern high-performance valve stems. For the exhaust side, where heat management is paramount, Supertech steps things up further: exhaust valve guides intended for high-powered engines that require a superior thermal transfer coefficient are crafted from a copper alloy, enabling more efficient heat dissipation away from the exhaust valve stem.
Supertech valve guides are manufactured from high-quality manganese bronze for sport compact and domestic applications. For exhaust valve guides designed for high-powered engines that need a better thermal transfer coefficient, Supertech uses a copper alloy guide. This dual-material strategy means builders can specify the right guide material for each port, rather than accepting a one-size-fits-all compromise.
Designed as Part of a Complete Valvetrain System
What sets Supertech valve guides apart from generic replacements is how purposefully they integrate with the rest of the Supertech valvetrain ecosystem. Supertech valve guides are designed to be used in combination with their low-friction black nitrided valves to provide the best solution for both performance and durability. This system-level thinking — matching guide bore tolerances, surface finish, and geometry to Supertech's own valve stems — reduces side-loading, minimizes oil consumption past the guide, and extends the service life of both components simultaneously.
Wide Application Coverage
Supertech's valve guide catalog spans an impressive range of platforms. From Honda D, K, and B-series engines beloved in sport compact and VTEC builds, to the Toyota FA20 and FR-S 4U-GSE, Subaru EJ and FA platforms, GM Ecotec engines, BMW N-series, Mini Cooper R53/R56 variants, Volkswagen applications, and European platforms such as the Peugeot Prince EP6 and Citroën THP, Supertech offers application-specific guides rather than generic blanks. Supertech's valves are not finished from generic blanks; rather, they are specifically designed for each and every application. The same philosophy carries through to their valve guides, which are dimensionally engineered to proper outer diameters and lengths for each engine family. Oversized guides for worn or machined head bores are also available, reflecting the brand's commitment to serving professional engine builders as much as enthusiasts.
The Supertech Difference: Testing, Technology, and Track Pedigree
Located in the heart of Silicon Valley, Supertech fuses cutting-edge technology with passionate people and over 30 years of experience in creating the highest-performance valves and valvetrain components available. State-of-the-art equipment such as ultrasonic tests, X-rays, laser measurement equipment, and computerized Finite Element Analysis (FEA) inform the development of every Supertech racing component. Whether it's drag racing, rally, road racing, or any other type of motorsport, Supertech is sure to have the perfect performance solution for your application.
For builders who demand dimensional precision, correct material selection, and a component that works as part of a proven valvetrain system, Supertech Performance engine valve guides represent a benchmark choice across a broad spectrum of racing and high-performance street builds.