Engineered for high-performance valvetrains, this Supertech Dual Valve Spring set provides the critical tension and stability required to prevent valve float at high RPMs. By utilizing a dual-spring configuration, these springs offer superior damping characteristics and an added safety margin for high-lift camshaft applications.

• Outer Spring Diameters: 29.00mm OD / 21.80mm ID
• Inner Spring Diameters: 21.00mm OD / 15.50mm ID
• Maximum Net Lift: 18.30mm
• Coil Bind: 22.00mm
• Quantity: Set of 16 springs
• Manufacturer Part Number: SPR-H1022D-16

Fits Honda K20 and K24 engines, as well as F20C1 and F22C1 (S2000) applications.

This Supertech dual valve spring set is engineered to provide the increased tension and stability required for high-performance valvetrains. By utilizing a dual-spring design, these components effectively dampen harmonics and prevent valve float at high RPMs, making them an essential upgrade for engines with aggressive camshaft profiles or increased rev limits.

Manufactured from high-quality chrome silicon steel alloy, these springs are designed for long-term durability under extreme racing conditions. This complete set ensures consistent seat pressure across all cylinders for reliable engine performance.

• Manufacturer Part Number: SPR-H1019D-16
• Quantity: Set of 16 Dual Valve Springs
• Engine Fitment: Honda K20, K24, F20C1, F22C1
• Designed for high-lift camshafts and increased RPM limits

Ensure valvetrain stability in your high-performance K-Series build with this Supertech Dual Valve Spring kit (SPR-H100DR-16). Designed specifically for Honda K20 and K24 engines, these dual springs provide the increased seat and open pressure required to prevent valve float at high RPMs and accommodate aggressive aftermarket camshaft profiles.

By utilizing a dual-spring design, Supertech minimizes harmonic resonances and improves reliability under the demanding conditions of forced induction or high-revving naturally aspirated setups. This set of 16 springs replaces factory components to provide the necessary control for upgraded valvetrain assemblies.

• Compatible Engines: Honda K20 and K24
• Spring Configuration: Dual Valve Spring
• Quantity: Complete set of 16
• Application: Performance valvetrain / high-RPM builds
• Manufacturer Part Number: SPR-H100DR-16

Fits BMW M50, M52, S50, and S52 engines.

This Supertech Dual Valve Spring set (SPR-H1005D-24) is engineered to provide the valvetrain stability required for high-performance and high-RPM applications. By utilizing a dual-spring configuration, these components help prevent valve float and ensure precise valve timing where factory single springs may fail under increased load or higher lift profiles.

• Compatible with BMW M50, M52, S50, and S52 engine platforms
• Dual-spring design for enhanced harmonic dampening and valvetrain control
• Manufacturer Part Number: SPR-H1005D-24
• Quantity: Complete set of 24 springs

Fits Honda H22A1 and H22A4 engines.

This Supertech Dual Valve Spring set is engineered to provide the necessary tension and seat pressure required for high-RPM engine builds and aggressive camshaft profiles. By utilizing a dual-spring design, these components offer superior harmonic damping and stability compared to standard single-spring setups, effectively preventing valve float in the H22-series cylinder head.

Precision manufactured to strict tolerances, these springs ensure consistent performance across the entire lift cycle, protecting your valvetrain during high-performance driving or racing conditions. This kit is a direct performance upgrade designed to maintain valvetrain integrity when pushing beyond factory redline limits.

• Prevents valve float in high-performance and high-RPM applications
• Dual-spring configuration for improved harmonic control
• Compatible with Honda H22A1 and H22A4 engine codes
• Includes a complete set of 16 dual valve springs
• Manufacturer Part Number: SPR-H1005D-16

Upgrade your Honda D16A or D15B valvetrain with this set of 16 Supertech performance single valve springs. Engineered to handle the increased demands of high-performance builds, these springs provide the necessary tension to prevent valve float and ensure reliable valvetrain harmonics during high-RPM operation.

Supertech springs are manufactured using high-quality chrome silicon steel and undergo rigorous heat treatment and stress-relieving processes to maintain consistent seat pressure over time. They are a direct-fit solution for enthusiasts looking to refresh worn factory components or support mild camshaft upgrades.

• Fits Honda D16A and D15B engines
• Type: Single Valve Spring
• Quantity: Full set of 16 springs
• Material: High-tensile chrome silicon steel
• Manufacturer Part Number: SPR-H1003S-16

Designed for high-performance valvetrain stability, the Supertech SPR-H1002S-16 Single Valve Spring set is engineered to handle the increased lift and RPM demands of modified Honda D-Series engines. These springs provide the consistent tension required to prevent valve float, ensuring precise engine timing and protecting critical components during high-RPM operation.

• Fits Honda D15B, D16Z6, D16Y6, D16Y7, D16Y8, and D17A engines
• Engineered for improved harmonic resistance and durability
• Prevents valve float under aggressive cam profiles
• Manufacturer Part Number: SPR-H1002S-16
• Included: Set of 16 single valve springs

Designed for high-performance valvetrain setups, this Supertech Dual Valve Spring set is engineered to handle the increased lift and RPM demands of modified Honda B-series engines. By utilizing a dual-spring configuration, these components provide the necessary seat pressure and tension to prevent valve float and bounce, ensuring precise timing and valvetrain stability during aggressive VTEC engagement and high-RPM operation.

• Fits Honda B16A, B17A, and B18C engines
• Complete set of 16 dual valve springs
• High-quality chrome silicon vanadium steel alloy construction
• Designed to accommodate high-lift aftermarket camshafts
• Manufacturer Part Number: SPR-H1002D-16

These springs are a critical upgrade for any B-series build where the factory redline is being extended or where higher-lift cams are used. They provide the mechanical reliability required to protect your engine's top end under racing conditions.

Fits Honda H22A1 and H22A4 engines.

This Supertech Dual Valve Spring kit is engineered for high-performance Honda H22 builds that demand precise valvetrain control. By utilizing a dual-spring architecture, these springs provide the necessary seat pressure and harmonic damping to prevent valve float during high-RPM operation and with high-lift camshaft profiles. They are a critical upgrade for maintaining engine reliability and performance in both naturally aspirated and forced induction applications.

• Designed for high-RPM stability and increased valve lift
• Dual-spring configuration improves harmonic damping and valvetrain response
• Direct fit for H22A1 and H22A4 cylinder heads
• Complete set of 16 valve springs
• Manufacturer Part Number: SPR-H1000D-16

Upgrade your valvetrain stability with this set of 12 Supertech beehive valve springs, specifically engineered for the Toyota G16E-GR engine. Designed for both intake and exhaust applications, these springs provide the necessary tension and harmonic control required for high-performance builds and increased RPM ranges.

The beehive profile utilizes a reduced top diameter, which allows for smaller, lighter retainers. By decreasing the reciprocating mass of the valvetrain, these springs improve valve response and reduce the risk of valve float at high engine speeds. Each spring is manufactured to Supertech’s exacting tolerances to ensure consistent seat pressure across all 12 units.

• Fits Engine: Toyota G16E-GR (found in GR Yaris and GR Corolla)
• Spring Style: Beehive
• Application: Intake and Exhaust (Complete Set)
• Quantity: 12 Springs
• Manufacturer Part Number: SPR-FCO-BE2-12

Fits BMW S65 and S85 engines typically found in the E90/E92/E93 M3 and E60/E63 M5/M6.

This Supertech Beehive Valve Spring set is engineered to improve valvetrain stability and harmonics in high-revving BMW M Power engines. The beehive profile features a reduced top diameter, which significantly lowers the reciprocating mass of the retainer and the spring itself. This design allows for better control of valve motion and reduces the risk of valve float at high RPMs.

These springs are specifically developed to be a direct performance upgrade while maintaining ease of installation. They are designed to work seamlessly with your factory BMW retainers and spring bases, eliminating the need for aftermarket hardware conversion. This kit provides a complete set of 40 springs, enough to fully service either the S65 V8 or the S85 V10 engine.

• Manufacturer Part Number: SPR-BMS65-BE1-40
• Spring Type: Beehive
• Quantity: Set of 40
• Fitment: BMW S65 (V8) and S85 (V10) Engines
• Installation: Compatible with factory retainers and spring bases

This Supertech Beehive Valve Spring set is engineered for BMW S65 and S84 engines, providing a high-performance solution for maintaining valvetrain stability at high engine speeds. Designed to be compatible with factory retainers and bases, these springs offer the mechanical advantages of a beehive profile without requiring a complete valvetrain conversion.

The beehive design features a reduced top diameter which minimizes reciprocating mass. This allows for superior harmonic control and higher RPM potential compared to standard cylindrical springs. Each spring is manufactured with precision tolerances to ensure consistent seat and open pressures across the complete set of 32.

• Fits BMW S65 and S84 engines
• Complete set of 32 springs
• Engineered for use with factory retainers and base seats
• Beehive profile reduces valvetrain mass and improves high-RPM harmonics
• Manufacturer Part Number: SPR-BMS65-BE1-32

Fits Subaru EJ20 and EJ25 engines, including those found in the Subaru WRX. This Supertech spring seat locator set provides a stable base for your valve springs, protecting the aluminum cylinder head from damage while ensuring consistent spring alignment during high-RPM operation.

Engineered for precision and durability, these locators are 1.0mm thick and are specifically designed to work in conjunction with the Supertech SPR-TS1015 spring kit. Replacing worn or incompatible seats with these hardened components helps maintain the integrity of your valvetrain geometry.

• Manufacturer Part Number: SEAT-TS-SUB-3-16
• Thickness: 1mm
• Quantity: Set of 16
• Application: Subaru EJ20 / EJ25 Engines
• Compatibility: Designed for Supertech SPR-TS1015 Spring Kits
• Material: High-quality hardened steel construction

Fits Honda RSX and S2000.

These Supertech spring seat locators are precision-engineered to provide a stable foundation for high-performance valvetrain assemblies. Designed specifically for use with Supertech H1020 series dual valve springs, these locators prevent spring walk and maintain proper vertical alignment during the high-RPM demands of performance engines. By securing the base of the spring, these components protect the cylinder head from oscillation-induced wear and ensure consistent spring rates throughout the valve lift cycle.

• Compatible with Supertech H1020 series dual springs
• Prevents spring seat walk and lateral movement
• Precision machined for exacting tolerances and long-term durability
• Critical for high-lift and high-RPM valvetrain stability
• Quantity: Set of 16
• Manufacturer Part Number: SEAT-H1020DS-16

Ensure valvetrain stability and protect your cylinder head with this set of 16 Supertech Performance dual valve spring seat locators. Precision-engineered to provide a secure, flat mounting surface, these locators prevent spring walk during high-RPM operation, maintaining proper spring alignment and ensuring consistent valve control.

These components are essential when upgrading to a dual spring setup. They correctly position both the inner and outer springs while shielding the aluminum cylinder head from the abrasive movement of the valve springs under load. Manufactured to exacting tolerances, they are a critical component for high-performance valvetrain builds.

• Designed specifically for dual valve spring configurations
• Prevents spring movement and protects the cylinder head surface
• Precision machined for exact fitment and durability
• Complete set of 16 locators
• Manufacturer Part Number: SEAT-H1002D-16

Upgrade your valvetrain with this set of 16 Supertech titanium valve spring retainers. Engineered for high-performance and racing applications, these retainers utilize aerospace-grade titanium alloy to significantly reduce reciprocating mass compared to factory steel components. This weight reduction is critical for maintaining valve control at high RPMs and preventing the valve float that can lead to catastrophic engine damage.

Each retainer is CNC-machined to precise tolerances to ensure a perfect fit with 6.6mm stems and standard 7-degree valve locks. These components are essential for builders seeking increased valvetrain stability and reliability in high-lift or high-revving engine configurations.

• Material: High-strength Titanium Alloy
• Valve Stem Diameter: 6.6mm
• Lock Angle: 7 Degree
• Quantity: Set of 16
• Manufacturer Part Number: RET-TS66-T1-16

Lighten your valvetrain and increase RPM potential with this set of Supertech titanium retainers. Specifically engineered to seat with Supertech H1000 series valve springs, these retainers significantly reduce reciprocating mass compared to factory steel components, providing the valvetrain stability required to prevent valve float during high-performance operation.

Each retainer is CNC-machined from aerospace-grade 6AL4V titanium alloy. This material choice ensures high strength-to-weight ratios and tight tolerances, making them an essential upgrade for engines utilizing aggressive cam profiles and high-lift setups. Precise fitment ensures proper spring tension and secure valve stem retention under extreme thermal and mechanical stress.

• Material: High-grade 6AL4V Titanium
• Quantity: Full set of 16 retainers
• Compatibility: Designed for Supertech H1000 Series valve springs
• Manufacturer Part Number: RET-K20A2-T2-16

Engineered for high-performance valvetrain stability, the Supertech Titanium Retainer is designed specifically for use with Supertech H1000 Series valve springs. These retainers are manufactured from high-strength, aerospace-grade titanium to provide an optimal strength-to-weight ratio, which is critical for high-RPM engine builds where reducing reciprocal mass is essential to prevent valve float.

Precision-machined to exacting tolerances, these titanium retainers replace heavier factory steel components, allowing the valvetrain to respond more accurately to aggressive camshaft profiles. This ensures consistent seat pressure and reliable performance under extreme racing conditions.

• Material: High-strength aerospace-grade titanium
• Application: Specifically designed for Supertech H1000 Series springs
• Function: Reduces valvetrain mass to increase RPM potential and prevent valve float
• Precision machined for exact fitment and durability
• Manufacturer Part Number: RET-K20A2-T2

Fits BMW S52 engines.

Supertech steel valve spring retainers are engineered for high-performance valvetrains that demand superior fatigue resistance and long-term durability. While titanium retainers offer weight advantages, these high-strength steel components provide the longevity required for high-mileage street performance and endurance racing applications where valvetrain stability is critical.

Each retainer is precision CNC-machined to exacting tolerances, ensuring a secure fit with the valve springs and keepers to prevent spring surge and maintain consistent seat pressure throughout the RPM range.

• Manufacturer Part Number: RET-HBK-ST-24
• Material: High-strength chromoly steel
• Engine Application: BMW S52
• Quantity: Set of 24
• Designed for high-RPM valvetrain stability

Fits BMW S42, Honda B16A, and Acura B18C5 engines.

Engineered for high-RPM valvetrain stability, these Supertech spring retainers are precision-manufactured from high-quality steel. While titanium retainers are often used in race-only applications, steel retainers provide exceptional durability and wear resistance for street performance and long-duration endurance builds where longevity is a priority.

• Precision machined for exact fitment with compatible valve springs
• High-strength steel construction for maximum durability
• Designed to handle increased spring pressures and high engine speeds
• Quantity: Complete set of 16 retainers
• Manufacturer Part Number: RET-HBK-ST-16

Fits BMW N54 24V (3.0L) engines.

These Supertech steel valve spring retainers are precision-engineered for the high-performance demands of the BMW N54 platform. While titanium is often favored for weight, high-grade steel retainers offer superior fatigue resistance and long-term durability in high-mileage or street-driven applications. These components provide a stable seat for the valve spring, ensuring consistent valvetrain geometry even under high-RPM conditions.

This set is specifically designed for use with Supertech SPR-FE20N54-BE valve springs to ensure exact fitment and proper spring tensioning.

• Material: High-strength steel for maximum durability
• Quantity: Set of 12
• Engine Fitment: BMW N54 24V (3.0L)
• Required Springs: Designed for use with SPR-FE20N54-BE
• Manufacturer Part Number: RET-BMN54-TI-12

Engineered for precision valve train adjustment, this Supertech factory-style shim replacement is designed specifically for the Nissan RB26 engine. Maintaining proper valve lash is critical for engine longevity and performance, especially when rebuilding a cylinder head or installing high-lift aftermarket camshafts.

This shim is manufactured to exacting tolerances to ensure a perfect fit within the valve bucket. High-grade materials and a precision-ground finish provide the durability necessary to withstand the high-RPM stresses common in performance RB26DETT builds. Use this 3.15mm thick shim to achieve the precise clearance required for optimal valvetrain geometry and quiet operation.

• Fits Nissan RB26DETT engines
• Diameter: 12.15mm
• Thickness: 3.15mm
• Manufacturer Part Number: RB26-SHIM-3.15
• Direct replacement for factory shim-over-bucket configurations
• Precision ground for accurate valve clearance settings

Achieve precise valve lash settings on your Nissan RB26 engine with this Supertech factory-style replacement shim. These shims are critical for correct cylinder head assembly, ensuring that the clearance between the camshaft lobe and the lifter bucket remains within factory or aftermarket camshaft specifications.

Manufactured to exacting tolerances, this shim allows engine builders to compensate for valve tip wear or valve job geometry changes. Using the correct thickness is essential for maintaining valvetrain stability and preventing premature wear at high RPMs.

• Engine Application: Nissan RB26
• Diameter: 12.15mm
• Thickness: 3.10mm
• Material: High-strength steel alloy
• Manufacturer Part Number: RB26-SHIM-3.10

Maintain precise valvetrain lash settings in your Nissan RB26 engine with this Supertech factory-style shim replacement. These precision-ground shims are essential for establishing the exact valve clearances required for optimal camshaft performance and valvetrain longevity, whether you are performing a standard rebuild or a high-performance head build.

Each shim is manufactured to high tolerances to withstand the high-RPM stresses common in RB-series engines. This component is a direct replacement for the factory shim, ensuring compatibility with the stock valvetrain geometry while providing the specific thickness needed for your lash adjustment.

• Engine Fitment: Nissan RB26
• Diameter: 12.15mm
• Thickness: 3.05mm
• Construction: High-strength precision-ground steel
• Manufacturer Part Number: RB26-SHIM-3.05
• Application: Factory shim-over-bucket valvetrain

Engineered for precise valvetrain adjustment, this Supertech factory-style shim replacement is designed specifically for Nissan RB26 engines. Proper valve lash is critical for maintaining performance and preventing valvetrain wear; these shims allow builders to achieve exact clearances in high-performance or stock applications.

• Fits Nissan RB26 engines
• Precision-ground for accurate 3.00mm thickness
• Outer Diameter: 12.15mm
• Direct replacement for original equipment (OE) shims
• High-strength steel construction to withstand high RPM and heavy spring pressures
• Manufacturer Part Number: RB26-SHIM-3.00

Fits Nissan RB26 engines.

Achieving precise valve lash is critical for valvetrain longevity and performance, particularly in high-RPM Nissan RB26 builds. These Supertech factory-style replacement shims allow for exact clearance adjustments during cylinder head assembly or after installing new camshafts. Manufactured from high-strength steel to resist wear and maintain tolerances under heavy valve spring loads, they provide a direct-fit solution for maintaining valvetrain geometry.

• Diameter: 12.15mm
• Thickness: 2.95mm
• Construction: High-strength hardened steel
• Part Number: RB26-SHIM-2.95
• Designed for precise valve lash adjustment

Designed for precise valve lash adjustment on Nissan RB26 engines, this Supertech factory-style shim replacement allows engine builders to maintain exacting valvetrain tolerances. These shims are essential components when installing aftermarket camshafts or performing a cylinder head refresh where factory clearances must be reset for optimal performance and longevity.

• Direct replacement for factory Nissan RB26 cylinder head shims
• Precision machined for consistent thickness and diameter
• Outside Diameter: 12.15mm
• Thickness: 2.80mm
• Critical for proper valvetrain geometry and lash settings
• Manufacturer Part Number: RB26-SHIM-2.80

Maintain precise valve lash and optimal valvetrain performance with this Supertech 12.15mm cam follower shim. Engineered for precision and durability, these shims are essential for fine-tuning the clearance between the camshaft and the valve, ensuring your engine operates at its peak efficiency while minimizing unnecessary wear on valvetrain components.

Each shim is precision-ground to exacting tolerances to ensure consistency across the entire valvetrain. Manufactured from high-strength materials, they are built to withstand the high-stress environment of high-performance cylinder heads, particularly in RB26 engine builds where 12.15mm shims are standard.

• Manufacturer Part Number: RB26-SHIM-2.70
• Shim Diameter: 12.15mm
• Thickness: 2.7mm
• Application: Designed for RB26 engines and compatible 12.15mm lifter/bucket setups
• Construction: Precision-ground hardened steel for maximum wear resistance

This Supertech precision-ground cam follower shim is designed for high-performance valvetrain applications where exact valve lash clearances are critical. Manufactured from high-strength hardened steel and finished to precise tolerances, these shims provide the durability needed for high-RPM operation and heavy-duty use.

• Manufacturer Part Number: RB26-SHIM-2.65
• Diameter: 12.15mm
• Thickness: 2.65mm
• Material: Precision-ground hardened steel
• Function: Adjusts valve lash for overhead cam engines

Designed for the Nissan RB26 engine, this Supertech factory shim replacement provides the precision necessary for accurate valve lash adjustment. Maintaining correct clearances is vital for valvetrain longevity and performance, particularly in high-RPM applications where consistent cam-to-lifter contact is required.

• Fits Nissan RB26 engines
• Diameter: 12.15mm
• Thickness: 2.60mm
• Direct replacement for factory shims
• Hardened construction for wear resistance
• Manufacturer Part Number: RB26-SHIM-2.60

Whether performing a cylinder head rebuild or routine maintenance, these shims allow builders to achieve exact tolerances. They are engineered to withstand the stresses of performance valve springs and aggressive camshaft profiles without deforming.