Engineered for the Honda K24Z7 engine, the Supertech SPRK-H1005D-Z7 Dual Valve Spring Kit provides the valvetrain stability required for high-performance builds. By utilizing a dual-spring configuration, this kit effectively dampens valvetrain harmonics and provides the necessary seat and open pressures to prevent valve float at high RPMs or when running aggressive camshaft profiles.

Precision-manufactured to exacting tolerances, these springs are designed to maintain consistent tension over their service life, ensuring reliable valve timing and preventing catastrophic engine damage caused by valve-to-piston contact. This kit is a direct upgrade for K24Z7 enthusiasts looking to increase their rev limit or support forced induction applications.

• Specifically designed for Honda K24Z7 engines
• Dual-spring design for superior harmonic control and high-lift support
• Critical for preventing valve float in high-RPM applications
• Manufacturer Part Number: SPRK-H1005D-Z7

Fits BMW engines including S42, M42, M50, S50, M52, and M54.

This Supertech dual valve spring kit (SPRK-H1005D-BM) is engineered for high-performance BMW valvetrains that demand stability at high RPMs. By providing increased seat and open pressure, these springs prevent valve float and bounce, allowing you to safely run more aggressive camshaft profiles and higher lift. The dual-spring design adds a critical layer of harmonic damping and ensures valvetrain reliability under the stresses of racing or spirited driving.

• Engineered to prevent valve float in high-RPM applications
• Designed for compatibility with increased camshaft lift
• Provides improved harmonic damping over single-spring setups
• Precision manufactured for consistent spring rates
• Manufacturer Part Number: SPRK-H1005D-BM

Engineered for high-performance applications, the Supertech Dual Valve Spring Kit (SPRK-H1005D) provides the seat pressure and coil bind clearance required for aggressive camshaft profiles and high-RPM operation on Honda H22 engines. This dual-spring configuration is designed to dampen harmonic vibrations and prevent valve float, ensuring valvetrain stability and protecting your engine during spirited driving or competitive racing.

• Fits Honda H22 series engines
• Dual-spring design for superior valvetrain control and high-RPM reliability
• Includes matched springs, retainers, and seats for a complete installation
• Manufacturer Part Number: SPRK-H1005D

Fits Honda D16Z, D16Y8, and D17 engines.

The Supertech SPRK-H1002S Single Valve Spring Kit is engineered to provide the valvetrain stability required for high-performance and high-RPM Honda D-series builds. By increasing seat pressure and control, these springs prevent valve float, protecting your engine during aggressive cam profiles or forced induction applications.

Each spring is manufactured using high-quality chrome silicon vanadium steel alloy for maximum durability and fatigue resistance. This kit is a direct upgrade for street and track setups looking to improve valvetrain reliability and ensure consistent performance under load.

• Manufacturer Part Number: SPRK-H1002S
• Engine Fitment: Honda D16Z, D16Y8, D17
• Spring Type: Single Spring
• Material: Chrome Silicon Vanadium Steel

Fits Honda B16 and B18C engines.

The Supertech SPRK-H1002D Dual Valve Spring Kit is engineered for high-performance B-Series builds that require superior valvetrain stability and increased seat pressure. This kit is a critical upgrade for engines seeing high RPM or aggressive cam profiles, preventing valve float and ensuring precise timing throughout the powerband.

Each spring is manufactured from a premium chrome silicon vanadium steel alloy, designed to resist fatigue and maintain consistent pressure even under extreme thermal stress. The included titanium retainers are CNC-machined for exact tolerances, significantly reducing reciprocating mass compared to factory steel retainers. This weight reduction allows for faster engine response and safer operation at higher rev limits.

• Engine Compatibility: Honda B16 / B18C
• Spring Type: Dual Valve Springs
• Retainer Material: CNC-Machined Titanium
• Construction: High-tensile chrome silicon vanadium steel
• Manufacturer Part Number: SPRK-H1002D

Kit includes a full set of dual valve springs and titanium retainers.

Fits BMW S42, M42, M50, S50, M52, and M54 engines.

The Supertech SPRK-H1000D-BM-ST Dual Valve Spring Kit is engineered for high-performance BMW builds that require reliable valvetrain control at elevated engine speeds. By utilizing a dual-spring design, this kit provides increased seat pressure and superior harmonic damping compared to factory single-spring setups. This configuration effectively prevents valve float and ensures valvetrain stability when running aggressive high-lift camshafts.

• Engineered specifically for BMW 4-cylinder and 6-cylinder valvetrains
• Dual spring configuration for enhanced resonance control and safety
• Designed to accommodate performance high-lift camshafts
• Manufacturer Part Number: SPRK-H1000D-BM-ST

Engineered for high-performance BMW M54 engine builds, the Supertech Dual Valve Spring Kit (SPRK-H1000D-BM-16-ST) provides the critical tension and harmonic dampening needed for high-RPM operation. This dual-spring configuration replaces the factory single-spring setup to prevent valve float and ensure reliable valve seating when using aggressive camshaft profiles or increased boost levels.

• Fits BMW M54 engines
• Dual spring design for superior harmonic control and high-lift capacity
• Set of 16 dual valve spring assemblies
• Precision-wound from high-cleanliness chrome silicon steel
• Designed to handle increased seat pressure for race and street performance
• Manufacturer Part Number: SPRK-H1000D-BM-16-ST

Ensure valvetrain stability and prevent catastrophic valve float with the Supertech SPRK-H1000D-BM Dual Valve Spring Kit. Designed specifically for high-performance BMW 4-cylinder and 6-cylinder engines, this kit is an essential upgrade for builds utilizing aggressive camshaft profiles or operating at elevated RPM ranges where factory springs lose control.

The dual spring configuration provides increased seat pressure and superior harmonic damping compared to single-spring setups. This design ensures that the valves follow the cam lobe precisely, maintaining power through the top end and protecting your engine during high-load track use or forced induction applications.

• Fits BMW M42, M50, M52, M54, S42, and S50 engines.
• Engineered for high-RPM stability and increased valve lift tolerance.
• Dual spring design for improved harmonic control and valve seating.
• Manufacturer Part Number: SPRK-H1000D-BM

Protect your valvetrain against the risks of valve float with the Supertech Dual Valve Spring Kit (SPRK-H1000D), specifically engineered for the Honda H22 engine series. This kit is a critical upgrade for high-performance builds involving aggressive camshaft profiles, forced induction, or elevated rev limits where factory single springs often reach their mechanical limits.

By utilizing a dual-spring design, Supertech provides superior harmonic damping and increased seat pressure required to maintain precise valve control. This ensures the valves remain in contact with the cam lobes at high RPMs, preventing loss of power and potential engine damage.

• Fits Engine: Honda H22
• Spring Configuration: Dual Valve Springs
• Part Number: SPRK-H1000D
• Applications: High-RPM, forced induction, and performance racing
• Material: High-quality chrome silicon vanadium steel alloy

Engineered for the high-performance demands of the BMW N54 engine, the Supertech Conical Valve Spring Kit provides the valvetrain stability necessary for high-boost and high-RPM applications. The conical design reduces reciprocating mass at the retainer end while offering superior harmonic damping compared to standard cylindrical springs.

This kit is a direct solution for preventing valve float and ensuring consistent valve seating under extreme conditions. Whether you are running upgraded turbochargers or aggressive camshaft profiles, these springs provide the tension required to maintain valvetrain integrity and prevent catastrophic engine failure.

• Engine Compatibility: BMW N54
• Spring Design: Conical
• Spring Rate: 7.25 lbs/mm
• Manufacturer Part Number: SPRK-FE20N54-BE-2
• Purpose: High-RPM stability and valve float prevention

Upgrade your valvetrain with the Supertech SPRK-FE20N54-BE Conical Valve Spring Kit, specifically engineered for the BMW N54 24V 3.0L engine. Designed for high-performance applications, these conical springs offer improved harmonics and reduced reciprocating mass compared to traditional cylindrical designs, ensuring stable valve control at higher RPMs.

This kit is a direct performance upgrade that maintains compatibility with your factory valve stem seals, simplifying the installation process while providing the increased seat pressure and spring rate consistency needed for forced induction or high-revving builds. Supertech's precision manufacturing ensures these springs maintain their tension over the long term, protecting your engine from valve float.

• Engine Fitment: BMW N54 24V (3.0L)
• Spring Design: Conical for reduced mass and improved harmonics
• Seal Compatibility: Use with factory valve stem seals
• Manufacturer Part Number: SPRK-FE20N54-BE

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

The Supertech Beehive Valve Spring Kit is engineered to enhance valvetrain stability and performance for high-RPM Duratec applications. The beehive spring profile features a smaller top diameter, which reduces the reciprocating mass of the retainer and spring. This design offers superior harmonic resistance compared to standard cylindrical springs, allowing for increased lift and more consistent valve control under aggressive cam profiles.

This kit is specifically designed for builders looking for a high-performance upgrade that integrates with existing factory components, significantly simplifying the installation process while maintaining tight tolerances.

• Manufacturer Part Number: SPRK-FE20BE
• Engine Fitment: Ford/Mazda Duratec (2.0L / 2.3L)
• Spring Style: Beehive
• Compatibility: Designed for use with OEM Retainers and OEM Seats
• Application: High-performance street and track use

Fits BMW S63 V8 engines.

The Supertech SPRK-BMS63B Conical Valve Spring Kit is engineered to meet the demands of high-performance BMW S63 builds. By utilizing a conical profile, these springs reduce reciprocating mass at the retainer end, significantly improving valvetrain harmonics and preventing valve float at higher RPM and boost levels.

This kit is specifically calibrated with distinct seat pressures for the intake and exhaust sides to ensure precise valve control and timing. These springs are designed to be a durable solution for enthusiasts looking to strengthen their valvetrain while maintaining reliable operation under stress.

• Manufacturer Part Number: SPRK-BMS63B
• Spring Profile: Conical
• Intake Seat Pressure: 80 lbs
• Exhaust Seat Pressure: 83 lbs
• Engine Application: BMW S63 V8

Fits Audi and VW 30V 6-cylinder engines (2.7T).

Engineered for high-performance applications, the Supertech SPRK-AUDI2.7T Valve Spring Kit provides the valvetrain stability required for high-boost and high-RPM builds. This kit is specifically designed for the 30-valve 2.7T engine, replacing the factory springs with high-tensile chrome silicon vanadium steel alloy components that offer superior resistance to fatigue and thermal stress.

By increasing seat pressure and optimizing coil bind heights, these springs prevent valve float and ensure reliable valve seating when running aggressive camshaft profiles or increased manifold pressure. This is a critical upgrade for B5 S4 and C5 A6/Allroad owners seeking to push their valvetrain beyond factory limits.

• Compatible with Audi/VW 30V 6-cylinder engines
• Includes both single and dual spring configurations as per application requirements
• Manufactured from high-quality chrome silicon vanadium steel alloy
• Designed to prevent valve float in high-performance engines
• Manufacturer Part Number: SPRK-AUDI2.7T

Fits VW and Audi 20V 4-cylinder models (1.8T).

The Supertech SPRK-AUDI18T-DR Dual Valve Spring Kit is engineered for high-performance 1.8T engines where increased boost levels and higher RPM limits are required. By utilizing a dual-spring design, this kit provides the necessary seat pressure and coil bind clearance to prevent valve float, ensuring valvetrain stability during aggressive driving and track use. These springs are manufactured from high-quality chrome silicon steel to maintain tension and resist fatigue over time.

• Specifically designed for VW/Audi 1.8T 20-valve 4-cylinder engines
• Dual-spring configuration for superior harmonic damping and stability
• Reduces the risk of valve float at high RPM and elevated boost pressures
• Constructed from high-tensile chrome silicon steel
• Manufacturer Part Number: SPRK-AUDI18T-DR

This Supertech Dual Valve Spring Kit is engineered specifically for high-performance VW and Audi 1.8T 20V 4-cylinder engines. Designed to provide the increased seat pressure and lift capacity required for aggressive camshaft profiles and high-boost applications, this kit effectively prevents valve float at high RPMs to maintain valvetrain stability and engine reliability.

By utilizing a dual-spring design, this kit offers superior harmonic damping and fatigue resistance compared to standard single-spring setups. It is an essential upgrade for builders seeking to maximize the power band of the 1.8T platform while ensuring the valvetrain can handle the stresses of increased lift and rapid cycling.

• Engine Fitment: VW/Audi 1.8T 20V 4-Cylinder (1.8T)
• Spring Type: Dual Valve Spring
• Included: Complete set of inner and outer springs
• Manufacturer Part Number: SPRK-AUDI18T

Fits select Toyota and Lotus models equipped with the 2ZZ-GE engine, including the Lotus Elise, Exige, and Toyota Celica GT-S. This kit is a vital valvetrain upgrade for engines operating at high RPMs or utilizing aggressive aftermarket camshaft profiles.

The Supertech SPRK-A2416-T2Z Single Valve Spring Kit is engineered to maintain precise valve control and prevent valve float, a common risk in the high-revving 2ZZ-GE architecture. By providing consistent seat pressure and managing valvetrain harmonics, these springs ensure reliable performance during track use and spirited driving. The single-spring design is specifically chosen to optimize valvetrain mass while providing the necessary tension for high-performance applications.

• Designed specifically for the 1.8L 2ZZ-GE engine platform
• High-grade alloy construction for maximum fatigue resistance and longevity
• Helps prevent catastrophic engine damage caused by valve-to-piston contact at high RPM
• Complete kit includes necessary components for a comprehensive valvetrain refresh
• Manufacturer Part Number: SPRK-A2416-T2Z

Fits select VW and Audi models equipped with the 2.0L FSI EA113 engine.

The Supertech SPRK-A2416-N2 single valve spring kit is engineered to provide the increased tension and stability required for performance valvetrain applications. By replacing worn or weak factory springs, this kit helps prevent valve float at higher RPMs, ensuring consistent engine timing and protecting your internal components during spirited driving or track use.

Supertech utilizes high-quality chrome silicon vanadium steel for its springs, providing superior fatigue resistance and long-term durability under high-stress conditions. Each spring is precision-wound and processed to tight tolerances to ensure uniform performance across the entire cylinder head.

• Specifically designed for the EA113 FSI cylinder head architecture
• Enhanced valvetrain control and high-RPM reliability
• Single spring design for straightforward installation
• Manufactured from high-tensile chrome silicon vanadium steel
• Manufacturer Part Number: SPRK-A2416-N2

Fits Audi vehicles equipped with 2.5T FSI, TFSI, EA113, and EA888 engine platforms.

The Supertech SPRK-A2416-BE2 Single Valve Spring Kit is engineered to provide the increased seat pressure and higher lift capability required for high-performance builds. By replacing the factory valve springs, this kit prevents valve float during high-RPM operation and ensures stable valvetrain harmonics under increased boost levels or with more aggressive camshaft profiles.

• Optimized for Audi 2.5T FSI, TFSI, EA113, and EA888 engines
• Single spring configuration designed for high-RPM stability and reliability
• Essential for forced induction applications to prevent valve float
• Engineered to strict tolerances for consistent spring rates
• Manufacturer Part Number: SPRK-A2416-BE2

This Supertech single valve spring kit is specifically engineered for the Volkswagen 2.5L 5-cylinder 20V engine platform. Designed to provide consistent spring pressure and maintain valvetrain stability, this kit (MPN SPRK-A2416-5) addresses the requirements of engines operating at higher RPM ranges or using performance camshaft profiles.

Fits select Volkswagen models equipped with the 2.5L 5-cylinder 20-valve engine.

• Designed specifically for VW 2.5L 5-cylinder 20V engines
• Single valve spring configuration for reliable valvetrain control
• Engineered to high tolerances for performance durability
• Includes all springs required for the 20V cylinder head
• Manufacturer Part Number: SPRK-A2416-5

Designed for the BMW S54 24-valve engine, this Supertech Dual Valve Spring Kit (MPN: SPRK-2521-2BM-T1) provides the increased spring pressure and harmonics control required for high-performance valvetrains. This kit is a critical upgrade for engines seeing high-RPM use or aggressive camshaft profiles, helping to prevent valve float and ensure reliable engine operation under load.

• Fits BMW S54 24V engines (3.2L)
• Dual valve spring design for superior harmonics control
• Helps prevent valve float during high-RPM operation
• Engineered for performance builds and high-lift camshafts
• Manufacturer Part Number: SPRK-2521-2BM-T1

The Supertech Dual Valve Spring Kit for the BMW S54 engine is engineered to provide the increased tension and stability required for high-performance and high-RPM builds. By utilizing a dual-spring design, this kit significantly reduces the risk of valve float, ensuring the valvetrain remains controlled under aggressive camshaft profiles or increased boost levels.

This kit includes the SEAT-BMS55 spring seats, which are specifically matched to these springs to provide a precise mounting surface and maintain correct installed height. These components are essential for builders looking to improve the reliability and mechanical ceiling of the S54 valvetrain.

• Application: BMW S54 Engine
• Spring Type: Dual Valve Spring
• Included Components: SEAT-BMS55 Spring Seats
• Manufacturer Part Number: SPRK-2521-2BM-ST

This Supertech Single Valve Spring Kit is specifically engineered for the Nissan Skyline RB25 DOHC 24V engine utilizing hydraulic lifters. Designed to replace worn OE components or support mild performance upgrades, these springs provide the controlled tension necessary to maintain valvetrain stability and prevent valve float during higher-RPM operation.

• Application: Nissan RB25 DOHC 24V engines (Hydraulic Lifter models)
• Configuration: Single spring design
• Engineered for increased durability and consistent seat pressure
• Direct fit for factory mounting specifications
• Manufacturer Part Number: SPRK-2081-RB25

Engineered for high-performance Mazda Miata (1.8L) builds, the Supertech Dual Valve Spring Kit (SPRK-1012-M18D) provides the necessary seat pressure and stability to prevent valve float at high RPMs. By utilizing a dual-spring design, this kit offers superior harmonic dampening and increased lift capacity over original equipment components.

Supertech springs are manufactured from high-quality chrome silicon vanadium steel alloy, selected for its exceptional fatigue resistance and durability under extreme thermal stress. This makes them an essential upgrade for naturally aspirated high-revving engines or forced induction applications where increased cylinder pressures demand precise valve control.

• Fits Mazda Miata (1.8L)
• Dual spring configuration for enhanced high-RPM reliability
• Constructed from high-tensile chrome silicon vanadium steel alloy
• Reduces the risk of valve-to-piston contact during aggressive driving
• Manufacturer Part Number: SPRK-1012-M18D

Designed for high-performance Volkswagen VR6 builds, these Supertech Dual Valve Springs provide the increased tension and stability required for high-RPM operation and aggressive camshaft profiles. By utilizing a dual-spring design, this set helps prevent valve float and ensures reliable valvetrain timing under heavy loads.

This kit is an essential upgrade for cylinder heads intended for track or forced induction use, providing significantly better control than standard single-spring setups. The set includes all 12 springs required for a complete valvetrain refresh on compatible VR6 engines.

• Manufacturer Part Number: SPR-V2093-4-12
• Application: Volkswagen VR6
• Quantity: Set of 12 springs
• Spring Configuration: Dual Valve Spring

Fits 1993-2002 Toyota Supra (2JZ-GE / 2JZ-GTE) engines.

These Supertech single valve springs are engineered to provide the increased tension and stability required for high-performance valvetrains. Whether you are building a high-revving naturally aspirated 2JZ-GE or a high-boost 2JZ-GTE, these springs help prevent valve float and ensure precise valve timing at elevated RPM ranges. They are an essential upgrade when installing more aggressive camshaft profiles or when refreshing a high-mileage cylinder head.

Each spring is manufactured from high-quality chrome silicon vanadium steel alloy for exceptional durability and fatigue resistance. As a direct replacement for factory springs, they provide a reliable solution for maintaining valvetrain integrity under the mechanical stresses of performance driving.

• Manufacturer Part Number: SPR-TS1015-SI-16
• Quantity: Set of 16
• Spring Type: Single Spring
• Engine Compatibility: Toyota 2JZ-GE and 2JZ-GTE

Fits Toyota Supra models equipped with 2JZ-GE and 2JZ-GTE engines.

Maintain valvetrain stability and prevent valve float in high-performance applications with this set of Supertech Performance dual valve springs. Engineered specifically for the Toyota 2JZ platform, these springs provide the increased seat pressure and harmonic damping required for high-lift camshafts and high-RPM operation. Whether building a high-boost street engine or a dedicated track machine, these dual springs ensure the valves close securely and follow the cam profile precisely.

• Specifically designed for 2JZ-GE and 2JZ-GTE cylinder heads
• Dual spring configuration for superior harmonic control and reliability
• Essential for high-lift aftermarket camshaft upgrades
• Manufactured from high-quality chrome silicon vanadium steel
• Complete set of 16 valve springs
• Manufacturer Part Number: SPR-TS1015-16

Fits Toyota 4AGE 16V engines.

Upgrade your Toyota 4AGE 16V valvetrain with this complete set of 16 Supertech single valve springs. These springs are engineered to provide the necessary tension to maintain valvetrain stability at higher RPM ranges, helping to prevent valve float that can occur with tired factory units or more aggressive camshaft profiles. By ensuring the valves follow the cam lobe precisely, this set helps maintain consistent power delivery and engine reliability in performance applications.

Built to precise tolerances, these springs are a direct-fit solution for enthusiasts looking to refresh or build out a 16-valve cylinder head. This kit (MPN: SPR-TC25S-16) offers the durability and consistency required for high-revving 4AGE builds.

• Engine Application: Toyota 4AGE 16-Valve
• Spring Type: Single Valve Spring
• Quantity: Full set of 16
• Manufacturer Part Number: SPR-TC25S-16

Fits Mini Cooper models equipped with N14B16 and N18B16 engines.

Supertech beehive valve springs are engineered to provide superior valve control and stability at higher RPMs. The beehive design reduces reciprocating mass and improves harmonics compared to traditional cylindrical springs, making them an essential upgrade for performance N14 and N18 builds. These springs are specifically designed to be compatible with factory hardware for a straightforward installation.

• Manufacturer Part Number: SPR-MC56BE-16
• Spring Design: Beehive
• Quantity: Set of 16
• Compatibility: Fits OEM retainers
• Engineered for increased durability and high-RPM performance
• Precision manufactured for consistent seat and open pressures

Fits Honda B16A, B17A, and B18C VTEC engines.

This Supertech Dual Valve Spring set is engineered to provide the increased seat and open pressure required for high-performance Honda B-series builds. By utilizing a dual-spring configuration, these components offer superior harmonic damping and are capable of supporting high-lift camshafts while preventing valve float at high RPMs. These are a critical upgrade for any B-series VTEC engine being pushed beyond factory limits in street or track applications.

• Fits B16A, B17A, and B18C VTEC cylinder heads
• Dual-spring design for enhanced valvetrain stability and high-RPM reliability
• Engineered to prevent valve float and maintain valvetrain control
• Includes a full set of 16 valve springs
• Manufacturer Part Number: SPR-H200DR-16