Restore valvetrain stability and improve heat dissipation with this set of eight Supertech Manganese Bronze exhaust valve guides. Specifically engineered for Honda B-Series and H-Series cylinder heads, these guides are precision-machined to ensure tight tolerances and reduced friction compared to standard OEM components.

Manganese bronze is the preferred material for high-performance and high-RPM applications due to its superior thermal conductivity and wear resistance. These guides are designed to accommodate 5.5mm valve stems, providing the necessary durability for both street and competition builds where consistent valve-to-seat alignment is critical.

• Material: Precision-machined Manganese Bronze
• Valve Stem Diameter: 5.50mm
• Configuration: Exhaust side
• Fitment: Honda B-Series and H-Series engines
• Quantity: Set of 8
• Part Number: GDE-HB55-E-8

Fits Honda LS and H23 series engines.

Ensure precise valve movement and improved heat dissipation in your cylinder head with this set of 8 Supertech manganese bronze intake valve guides. Engineered for performance Honda LS and H23 builds, these guides replace worn factory components with a material designed to withstand high-RPM stress and elevated operating temperatures.

Manganese bronze is the preferred material for performance valvetrains due to its superior thermal conductivity and inherent lubricity. These guides help pull heat away from the intake valve stems more efficiently than standard iron guides while reducing friction and stem wear. Each guide is precision-machined to accommodate a 6.6mm stem diameter, providing the tight tolerances required for high-performance applications.

• Compatibility: Honda LS / H23 Series engines
• Material: High-quality Manganese Bronze alloy
• Valve Stem Diameter: 6.6mm
• Position: Intake side
• Quantity: Set of 8 guides
• Manufacturer Part Number: GDE-H66-I-8

Fits select Honda B18A, B18B, and H23 engines.

Restore cylinder head precision and ensure optimal heat dissipation with these Supertech exhaust valve guides. Engineered for consistent stem-to-guide clearances, these components are critical for maintaining stable valve geometry and preventing accelerated seat wear in high-performance or high-mileage applications.

• Engineered specifically for 6.6mm exhaust valve stems
• Precision-machined tolerances for superior fitment and stability
• Direct replacement for worn OE exhaust guides
• Manufacturer Part Number: GDE-H66-E-8
• Includes: Set of 8 Exhaust Valve Guides

Fits select Ford Duratec and Mazda MZR engines (2.0L / 2.3L).

Designed to restore precise valve stem stability and optimal heat dissipation, these Supertech valve guides are an essential component for any 2.0L or 2.3L Duratec/MZR cylinder head rebuild. Over time, factory guides develop excessive stem-to-guide clearance, which can lead to increased oil consumption, inconsistent valve seating, and accelerated valvetrain wear. These precision-machined guides are engineered to maintain tight tolerances and withstand the thermal stresses of high-performance street or track applications.

• Manufacturer Part Number: GDE-DUR16-8
• Includes a set of 8 valve guides
• Compatible with both intake and exhaust valve positions
• Engineered for improved durability and wear resistance compared to standard OE components
• Provides a stable foundation for precise valve timing and sealing

Restore cylinder head reliability and valve stability in your Mazda MZR (2.3L) engine with this set of precision-machined Supertech intake and exhaust valve guides. These guides are engineered to maintain tight tolerances and optimal valve stem-to-guide clearance, preventing excessive oil consumption and ensuring consistent valve seating under high-stress conditions.

• Fits Mazda MZR (2.3L) engines
• Designed for 6mm diameter valve stems
• Precision-machined for consistent tolerances and durability
• Direct replacement for worn or damaged OE valve guides
• Manufacturer Part Number: GDE-DUR16-6MM-8
• Quantity: Set of 8 guides

Designed for high-performance BMW S54 engines, this set of 12 Supertech valve guides provides the precision and durability required for high-RPM applications. These guides are compatible with both intake and exhaust valves, providing a comprehensive solution for a full cylinder head refresh.

Constructed from a proprietary manganese bronze alloy, these guides offer superior thermal conductivity and a low coefficient of friction. This material choice is specifically engineered to improve heat transfer from the valve stem to the cylinder head while reducing wear on the valve stems themselves, even under extreme racing conditions. Each guide is precision-machined to ensure tight tolerances and consistent oil film retention.

• Engine Application: BMW S54 (3.2L I6)
• Material: Manganese Bronze Alloy
• Valve Stem Diameter: 6.00mm
• Outer Diameter: 12.03mm
• Includes: 12 Valve Guides
• Manufacturer Part Number: GDE-BMW-S54-EI-12

Fits select BMW M42, M50, S50, and S52 engines.

Designed for high-performance cylinder head rebuilds, this set of 12 Supertech valve guides provides the precision tolerances required for stable valve stem alignment and efficient heat transfer. These guides are engineered to replace worn factory components, ensuring consistent valve seating and reduced oil consumption under high-RPM or boosted conditions.

• Application: Intake and Exhaust positions
• Stem Diameter: 6mm
• Outer Diameter: 12.56mm
• Quantity: Set of 12 guides
• Manufacturer Part Number: GDE-BMW-M50-EI-12

Whether you are performing a standard refresh or a full race build, these guides offer the durability needed to maintain valvetrain integrity in BMW inline-four and inline-six powerplants.

Fits Audi 1.8T engines.

Supertech Manganese Bronze valve guides are precision-engineered to provide superior heat transfer and wear resistance compared to standard OEM guides. These intake and exhaust guides are crafted from a high-quality manganese bronze alloy, specifically designed for high-performance cylinder head builds where thermal conductivity and low friction are critical for valve stem longevity.

• Material: Manganese Bronze alloy
• Application: Intake and Exhaust
• Outer Diameter (OD): 11.045mm
• Quantity: Set of 8
• Manufacturer Part Number: GDE-AU18T-8

Designed for an exact fit, these guides replace worn factory components and are suitable for both street and track applications requiring high-tolerance engine internals.

Fits select Audi 1.8T and 2.7T engines.

These Supertech valve guides are precision-machined from high-quality manganese bronze, designed to replace worn factory guides in high-performance or forced-induction applications. Manganese bronze offers significantly better thermal conductivity and a lower coefficient of friction than standard cast iron, helping to dissipate heat from the valve stem and reduce guide wear under extreme conditions.

Each guide is finished to a specific 11.045mm outer diameter to ensure a secure, reliable press-fit into the cylinder head. This set is compatible with both intake and exhaust valve positions and provides the durability required for high-RPM or boosted setups.

• Material: High-strength Manganese Bronze
• Outer Diameter: 11.045mm
• Quantity: Set of 12 guides
• Application: Intake and Exhaust positions
• Manufacturer Part Number: GDE-AU18T-12

This set of 10 Supertech manganese bronze valve guides is engineered for Audi cylinder head builds requiring tighter tolerances and superior thermal management. Manganese bronze is the preferred material for high-performance applications due to its excellent wear resistance and its ability to dissipate heat away from the valve stem more effectively than factory cast iron guides.

Precision-machined for a consistent fit, these guides are suitable for both intake and exhaust positions. They help maintain precise valve alignment, reducing friction and extending the life of your valvetrain components in high-RPM or forced induction environments.

• Manufacturer Part Number: GDE-AU18T-10
• Material: High-quality Manganese Bronze
• Outer Diameter: 11.045mm
• Length: 36.15mm
• Inner Diameter: 5.98mm
• Application: Intake and Exhaust valves
• Quantity: Set of 10 guides

Fits Ford EcoBoost (2.3L) engines.

Supertech Performance intake valves are engineered for high-stress applications where thermal stability and surface hardness are critical for engine longevity. These valves are manufactured from high-tensile stainless steel and undergo a specialized black nitriding process. This treatment significantly reduces friction within the valve guides and improves wear resistance under high-boost conditions.

• Manufacturer Part Number: FIVN-2501D-8
• Sizing: Standard (STD) diameter
• Finish: Black Nitrided for reduced friction and increased hardness
• Material: High-strength stainless steel
• Quantity: Set of 8 intake valves
• Application: Performance intake side replacement

Fits Ford 2.0L and 2.3L EcoBoost engines.

Designed for the extreme thermal loads of high-performance turbocharged applications, these Supertech exhaust valves are manufactured from Inconel 751. This nickel-base superalloy maintains its high-temperature strength and oxidation resistance far better than standard stainless steel. To further manage combustion heat, these valves feature a sodium-filled hollow stem. As the valve moves, the liquid sodium transfers heat away from the valve head and into the stem, where it is dissipated through the valve guide and cylinder head cooling system.

• Manufacturer Part Number: FEVI-2501F-HS-8
• Material: Inconel 751 (Nickel-Base Superalloy)
• Design: Sodium-filled hollow stem for superior heat dissipation
• Quantity: Set of 8 exhaust valves
• Application: Forced induction/high-heat environments

Designed for high-performance builds, this set of Supertech H-beam connecting rods provides the structural integrity required for modified Mini R56 engines. Forged from high-tensile 4340 chromoly steel, these rods are engineered to withstand the increased cylinder pressures and reciprocating loads found in turbocharged applications.

Each rod features an H-beam profile for an optimal strength-to-weight ratio, effectively reducing reciprocating mass while maintaining superior rigidity. To ensure maximum reliability under high RPMs, this set includes genuine ARP2000 fasteners, providing the clamping force necessary for a secure bottom-end assembly.

• Material: Forged 4340 Chromoly Steel
• Design: High-strength H-Beam
• Hardware: ARP2000 bolts included
• Center-to-Center Length: 138.54mm
• Quantity: Set of 4
• Manufacturer Part Number: CR-MINR56-H138.54-4

Ensure precise valve lash adjustment with this Supertech cam follower shim. Designed for performance valvetrain setups, these shims are engineered to achieve the exact clearances required for optimal camshaft lift and valvetrain geometry. Each shim is precision-ground from high-grade materials to withstand high-RPM operation and maintain consistent tolerances under heavy thermal loads.

• Manufacturer Part Number: CF-SHIM-2.80
• Diameter: 8mm
• Thickness: 2.80mm
• Component Type: Valvetrain Shim

Ensure precise valvetrain geometry and accurate valve lash with this Supertech Cam Follower Shim. Engineered for high-performance engine building, these shims allow for fine-tuned adjustments between the camshaft and the follower to maintain optimal engine performance and prevent premature wear.

This 8mm diameter shim is precision-ground from high-quality materials to withstand the high-RPM and high-load conditions found in performance cylinder heads. It is a critical component for achieving the exact tolerances required for stable valvetrain operation.

• Manufacturer Part Number: CF-SHIM-2.75
• Diameter: 8mm
• Thickness: 2.75mm
• Application: Cam follower valve lash adjustment
• Material: High-strength hardened steel

Achieving precise valve lash is critical for optimizing engine performance and ensuring valvetrain longevity. This Supertech Cam Follower Shim is engineered to provide exact clearance adjustment for engines utilizing 8mm diameter shim-under-bucket or shim-over-bucket lifter configurations.

Each shim is manufactured from high-strength hardened steel and precision-ground to exacting tolerances. This ensures a perfectly flat and durable surface capable of withstanding the high-pressure environment of high-RPM valvetrains. These are essential components for any cylinder head rebuild or performance camshaft installation where factory tolerances must be strictly maintained.

• Manufacturer Part Number: CF-SHIM-2.70
• Diameter: 8mm
• Thickness: 2.70mm
• Material: Hardened steel alloy for maximum wear resistance
• Application: Fits Supertech and compatible 8mm cam followers and buckets

Precision-engineered for high-performance valvetrains, this Supertech cam follower shim allows for exact valve lash adjustment in engines utilizing bucket-style followers or solid lifters. Maintaining proper lash is critical for optimizing camshaft profile performance and ensuring valvetrain longevity under high-RPM conditions.

Each shim is manufactured to exacting tolerances and precision-ground to ensure perfectly flat surfaces, preventing uneven wear on the follower or cam lobe. This individual shim is an essential component for engine builders seeking to dial in valvetrain geometry with professional-grade accuracy.

• Manufacturer Part Number: CF-SHIM-2.65
• Shim Diameter: 8mm
• Shim Thickness: 2.65mm
• Application: Compatible with valvetrain systems requiring 8mm diameter shims
• Design: Precision-ground for accurate thickness and surface finish

Precision-engineer your valve train clearance with this Supertech Cam Follower Shim. Designed for overhead cam engines utilizing 8mm diameter shims, this component is critical for setting exact valve lash after performing head work, installing new valves, or upgrading to high-performance camshafts. Maintaining proper clearance ensures optimal engine performance and prevents premature wear on the camshaft lobes and followers.

• Diameter: 8mm
• Thickness: 2.55mm
• Manufacturer Part Number: CF-SHIM-2.55
• Precision ground for consistent thickness and durability
• Essential for accurate valve lash adjustment

Maintain precise valvetrain lash and engine timing with this Supertech 8mm diameter cam follower shim. These shims are engineered for use in overhead cam engines using bucket-style followers, providing the necessary thickness to set valve clearances to exact specifications. Precision-ground to ensure consistent thickness across the entire diameter, they are a critical component for both factory rebuilds and high-performance valvetrain assemblies.

• Product Type: Cam Follower Shim
• Manufacturer Part Number: CF-SHIM-2.50
• Diameter: 8mm
• Thickness: 2.50mm
• Material: Hardened steel construction for wear resistance
• Function: Accurate adjustment of valve tip-to-camshaft clearance

This Supertech cam follower shim is engineered for precise valve lash adjustment in high-performance valvetrains. Designed to fit 8mm diameter applications, these shims provide the necessary clearance control required when installing performance camshafts, valves, or seats to ensure optimal engine timing and valvetrain longevity.

• Manufacturer Part Number: CF-SHIM-2.45
• Diameter: 8mm
• Thickness: 2.45mm
• Application: Valve lash/clearance adjustment for shim-style cam followers
• Precision ground for consistent thickness and flat engagement

Ensure precise valve lash adjustment with the Supertech Cam Follower Shim (CF-SHIM-2.40). Designed for high-performance overhead cam (OHC) valvetrains, these shims are essential components for maintaining correct clearances after performing a valve job or installing aftermarket camshafts.

Each shim is manufactured from high-grade, hardened steel and precision-ground to exacting tolerances. This ensures consistent surface contact and exceptional durability under high-stress, high-RPM conditions. Proper valvetrain shimming is critical to preventing premature wear on camshaft lobes and followers while maintaining optimal engine timing and performance.

• Diameter: 8mm
• Thickness: 2.40mm
• Material: Precision-ground hardened steel
• Manufacturer Part Number: CF-SHIM-2.40
• Application: Used for valve lash calibration in compatible 8mm shim-over-bucket or shim-under-bucket lifter setups

Achieve precise valvetrain clearance with the Supertech Cam Follower Shim (CF-SHIM-2.35). Designed for high-performance engines requiring exact valve lash settings, this 8mm diameter shim allows technicians and engine builders to maintain optimal cam-to-bucket contact, ensuring consistent timing and engine efficiency.

Manufactured to rigorous tolerances, each shim provides a durable, wear-resistant surface capable of withstanding the high-stress environment of the cylinder head. These are essential components for any valvetrain service where shim-under-bucket or shim-over-bucket adjustments are required.

• Diameter: 8mm
• Thickness: 2.35mm
• Manufacturer Part Number: CF-SHIM-2.35
• Construction: Precision-ground for thickness accuracy
• Function: Replaces worn or incorrect shims to set proper valve lash

Maintain precise valve lash and ensure optimal valvetrain performance with this Supertech cam follower shim. Designed for high-performance engines, these shims allow for exact clearance adjustments between the camshaft and the follower, which is critical for preventing premature component wear and maintaining engine timing accuracy.

Manufactured to exacting tolerances, this 8mm shim provides the stability and reliability required for high-RPM operation. These shims are an essential component for any precision cylinder head build where factory tolerances must be perfectly matched or adjusted for aftermarket camshaft profiles.

• Manufacturer Part Number: CF-SHIM-2.25
• Diameter: 8.00mm
• Thickness: 2.25mm
• Application: Fits 8mm diameter cam follower systems
• Material: High-strength steel alloy for durability

Achieve precise valve lash and maintain valvetrain stability with this Supertech Cam Follower Shim. Designed for engines utilizing shim-adjustable followers, these components are essential for fine-tuning the clearance between the camshaft and the valve to ensure optimal performance and prevent premature wear.

Manufactured from high-strength, hardened steel and ground to exacting tolerances, this 8mm diameter shim provides the flat, parallel surfaces required for reliable operation in high-RPM environments. Whether you are performing a routine valve adjustment or a complete cylinder head build, Supertech shims offer the durability needed for high-lift and high-stress applications.

• Diameter: 8mm
• Thickness: 2.20mm
• Manufacturer Part Number: CF-SHIM-2.20
• Precision ground for consistent thickness and flatness
• Constructed from hardened material for superior wear resistance

Maintain precise valvetrain tolerances with this Supertech cam follower shim. Designed for overhead cam (OHC) engines utilizing an 8mm diameter shim-under-bucket or shim-over-bucket configuration, this component is essential for accurate valve lash adjustment. Each shim is precision-ground to ensure consistent thickness and surface finish, providing a reliable contact point between the camshaft and the follower.

• Diameter: 8mm
• Thickness: 2.15mm
• Manufacturer Part Number: CF-SHIM-2.15
• Application: Valve lash adjustment for 8mm shim buckets
• Construction: Precision-ground high-strength steel

Achieve precise valve lash settings with this Supertech cam follower shim. Engineered for high-performance valvetrains, these shims allow for exact clearance adjustments between the camshaft and valve assembly, ensuring optimal engine timing and reduced mechanical wear during operation.

• Manufacturer Part Number: CF-SHIM-2.10
• Diameter: 8mm
• Thickness: 2.10mm
• Function: Precise valve lash adjustment for shim-under-bucket or specific cam follower configurations

Each Supertech shim is precision-ground to maintain tight tolerances, providing a stable contact surface even under high-RPM conditions. These are essential components for engine builders and technicians performing cylinder head service, cam swaps, or valvetrain overhauls where exact clearances are critical.

Ensure precise valve lash adjustment with this Supertech cam follower shim. Designed for high-performance valvetrains, these shims allow engine builders to set exact clearances between the camshaft and the follower. Maintaining proper lash is critical for optimizing engine timing, maximizing lift, and preventing premature wear on valvetrain components.

Constructed to handle the high-stress environments of racing and high-RPM street engines, this shim provides the consistency needed for reliable valvetrain geometry.

• Manufacturer Part Number: CF-SHIM-2.05
• Shim Diameter: 8mm
• Shim Thickness: 2.05mm
• Designed for precise valvetrain clearance and lash adjustment

Achieve precise valve lash settings with this Supertech Cam Follower Shim. Designed for high-performance valvetrain configurations, these shims allow technicians and engine builders to fine-tune the clearance between the camshaft and the follower. Maintaining proper valve lash is critical for optimizing engine timing, maximizing lift, and preventing premature wear on valvetrain components.

Each shim is manufactured from high-strength alloy and precision-ground to ensure consistent thickness and a perfectly flat surface, meeting the tight tolerances required for high-RPM operation. This 8mm diameter shim is a direct replacement or adjustment component for compatible valvetrain setups.

• Diameter: 8mm
• Thickness: 2.00mm
• Material: High-strength precision-ground steel alloy
• Application: Cam follower valve lash adjustment
• Manufacturer Part Number: CF-SHIM-2.00

The Supertech CF-SHIM-1.90 is a precision-engineered cam follower shim designed for critical valvetrain lash adjustment. These 8mm diameter shims are manufactured to exacting tolerances, ensuring consistent contact and wear resistance in high-performance racing and street engines.

Proper valve lash is essential for maintaining camshaft profile accuracy, optimizing engine timing, and preventing premature component wear. This shim allows engine builders to achieve the specific clearances required for solid lifter setups or custom valvetrain configurations where precision is paramount.

• Diameter: 8mm
• Thickness: 1.90mm
• Material: High-strength, precision-ground steel alloy
• Application: Valvetrain lash adjustment
• Manufacturer Part Number: CF-SHIM-1.90

Maintain precise valvetrain lash with this Supertech Cam Follower Shim. Designed for high-performance engines where exacting clearances are required, these shims allow tuners and builders to set the correct gap between the camshaft and the follower for optimal valve lift and timing accuracy. Manufactured from high-strength materials, they are built to withstand the stresses of high-RPM operation without deformation.

• Manufacturer Part Number: CF-SHIM-1.85
• Diameter: 8mm
• Thickness: 1.85mm
• Function: Precise valve lash adjustment for bucket-over-shim or shim-under-bucket valvetrain setups
• Material: Hardened alloy construction for maximum durability