Engineered to utilize the factory engine mounting positions, the Innovative Mounts 90758 provides a specialized mounting solution for enthusiasts replacing the original F20C or F22C1 engine with a Honda K20 engine.

The Honda S2000 is renowned for its balanced rear-wheel-drive platform, precise handling, and high-revving factory engine. Converting to a Honda K20 opens additional opportunities for performance upgrades, aftermarket engine components, and custom motorsport applications.

However, installing a K-Series engine into an S2000 requires specialized mounting components to accommodate the differences between the original F-Series engine and the replacement drivetrain.

The Innovative Mounts 90758 addresses these requirements with a purpose-built steel mounting system featuring driver-side and passenger-side conversion mounts, mounting brackets, and a rear transmission mount.

Unlike conversion systems designed around alternative drivetrain positioning, the 90758 is engineered to utilize the OEM engine mounting locations, providing a mounting arrangement that works with the S2000's existing chassis mounting provisions.

The kit features performance polyurethane bushings designed to reduce excessive engine movement during acceleration, deceleration, and shifting. Compared with conventional rubber mounts, these firmer bushings help maintain more consistent drivetrain positioning while improving responsiveness under load.

Featuring CAD/CAM-engineered components, stress-analyzed construction, and Innovative Mounts' no-tear polyurethane bushing design, the 90758 is an excellent foundation for naturally aspirated K20 builds, turbocharged applications, road racing projects, and dedicated motorsport vehicles.

Important: The Innovative Mounts 90758 is an OEM-position K-Series conversion mounting kit. It is not a direct-replacement mount kit for the original F20C/F22C1 engine and should not be confused with alternative S2000 engine positioning or extra-header-clearance mount kits.

Features

• K-Series Engine Swap Design: Engineered for Honda S2000 K-Series conversions.

• 2000–2009 Honda S2000 Compatibility: Designed for AP1 and AP2 chassis.

• OEM Engine Mounting Positions: Utilizes the factory S2000 engine mounting locations.

• K20 Engine Compatibility: Supports specified Honda K20 engine swap applications.

• Manual Transmission Application: Intended for compatible K-Series conversion configurations using a manual transmission.

• Complete Conversion Mounting System: Includes the primary mounts and associated mounting brackets.

• Three Primary Mounting Positions: Provides driver-side, passenger-side, and rear drivetrain support.

• Durable Steel Construction: Designed for demanding street and performance applications.

• Performance Polyurethane Bushings: Help reduce excessive drivetrain movement compared with conventional rubber mounts.

• No-Tear Bushing Design: Engineered to resist unwanted engine movement while maintaining some vibration isolation.

• CAD/CAM Engineered: Designed for accurate fitment and consistent mounting geometry.

• Stress-Analyzed Components: Developed for demanding drivetrain loads.

• Improved Drivetrain Stability: Helps control excessive engine movement during acceleration and shifting.

• Reduced Mount Deflection: Maintains more consistent drivetrain positioning under load.

• Improved Driving Response: Firmer mounting provides a more connected drivetrain feel.

• Potential Wheel Hop Reduction: Reduced drivetrain movement may help minimize wheel hop during aggressive acceleration.

• Multiple Bushing Hardness Options: Available in 75A, 85A, and 95A polyurethane configurations.

• Installation Hardware Included: Supplied with the manufacturer's specified mounting hardware.

• Street and Racing Applications: Suitable for properly configured street performance, autocross, road racing, and drag racing builds.

• Lifetime Warranty: Backed by Innovative Mounts' lifetime warranty, subject to manufacturer terms.

Popular Performance Applications

Honda S2000 K20 Engine Swaps

The primary application for the Innovative Mounts 90758. Provides the mounting components needed for a compatible K20 engine conversion utilizing the factory S2000 mounting positions.

Naturally Aspirated K20 Performance Builds

Suitable for properly configured K20 engines equipped with upgraded intake manifolds, headers, camshafts, and other naturally aspirated performance components.

Turbocharged K20 Applications

Provides a performance-oriented mounting foundation for properly configured forced-induction K20 S2000 conversions.

Road Racing Applications

Performance polyurethane bushings help maintain more consistent drivetrain positioning during acceleration, braking, and cornering.

Autocross Builds

Reduced engine movement can provide a more connected driving experience during aggressive vehicle transitions.

Drag Racing Projects

Firmer polyurethane bushings help resist excessive engine movement during aggressive acceleration.

Dedicated Motorsport Builds

An excellent solution for custom S2000 projects requiring a secure K-Series drivetrain mounting arrangement.

Additional Information

• Manufacturer: Innovative Mounts
• Part Number: 90758
• Product Type: Steel K-Series Engine Conversion Mount Kit
• Vehicle Application: 2000–2009 Honda S2000
• Chassis Compatibility: AP1 / AP2
• Original Engine: Honda F20C / F22C1
• Conversion Engine Compatibility: Honda K-Series; K20 applications listed by KSeriesParts
• Transmission Configuration: Compatible Manual Transmission
• Engine Positioning: OEM Mounting Positions
• Mount Construction: Steel
• Bushing Material: Performance Polyurethane
• Available Bushing Hardness Options: 75A / 85A / 95A
• Mounting Configuration: Driver-Side, Passenger-Side, and Rear Mounting Components
• Driver-Side Engine Mount: Innovative Mounts 90716
• Driver-Side Mounting Bracket: Innovative Mounts 90710-SB
• Passenger-Side Engine Mount: Innovative Mounts 90726
• Passenger-Side Mounting Bracket: Innovative Mounts 90710-SB
• Rear Transmission Mount: Innovative Mounts 90730
• Rear Mounting Bracket: Innovative Mounts 90730-SB
• Engineering: CAD/CAM Designed and Stress Analyzed
• Mounting Hardware: Included
• Manufacturer-Listed Weight: Approximately 18 lbs
• Warranty: Manufacturer Lifetime Warranty, Subject to Terms

Available Polyurethane Bushing Hardness Options

75A – Black – Street / Performance

The softest available bushing option for the 90758.

Recommended for street-oriented K20 S2000 conversions where improved drivetrain stability is desired while retaining some vibration isolation.

Manufacturer horsepower guidance: approximately 250–400 HP.

85A – Grey – Performance / Race

Provides increased drivetrain rigidity for modified engines, aggressive driving, and competition applications.

Manufacturer horsepower guidance: approximately 400–500 HP.

95A – Red – Extreme Race

The stiffest available polyurethane option, intended for high-output engines and dedicated racing applications.

Manufacturer horsepower guidance: 500+ HP.

These horsepower ranges are manufacturer bushing selection guidelines rather than guaranteed load ratings or minimum horsepower requirements.

Important: Increasing bushing hardness generally increases noise, vibration, and harshness transmitted into the vehicle cabin. The 75A option is typically the most appropriate starting point for a street-driven S2000 conversion.

Innovative Mounts 90756 vs. 90757 vs. 90758

Innovative Mounts 90756 – K20 Adapter Conversion Kit

Designed for Honda S2000 K20 engine conversions using the corresponding front and passenger-side adapter-plate mounting arrangement.

Innovative Mounts 90757 – K24 Adapter Conversion Kit

Designed for Honda S2000 K24 engine conversions using the corresponding adapter-plate mounting arrangement.

Innovative Mounts 90758 – K-Series OEM-Position Conversion Kit

Designed for compatible Honda S2000 K-Series engine conversions utilizing the factory engine mounting positions.

Important: These kits use different mounting components and configurations. Confirm the engine, transmission, and intended drivetrain positioning before ordering.

Additional Components Required for a K20 S2000 Swap

The Innovative Mounts 90758 addresses the engine and transmission mounting portion of the conversion. Additional components are required to complete the swap.

Commonly required supporting components include:

• Compatible Honda K20 engine

• Compatible manual transmission

• Appropriate engine-to-transmission adapter components

• Compatible flywheel and clutch assembly

• Engine wiring harness and chassis integration wiring

• Compatible ECU or standalone engine management system

• Appropriate engine and transmission sensors

• Engine swap-compatible cooling system components

• Engine swap-compatible radiator hoses

• Appropriate fuel delivery system

• Custom or conversion-specific exhaust components

• Intake system and throttle body connections

• Appropriate engine accessories and belt routing

• Required fabrication and clearance modifications

Exact requirements depend on the selected engine, transmission, and overall vehicle configuration.

Important: The 90758 does not include these additional conversion components.

Common Reasons for Replacement or Upgrade

• K20 Engine Conversion: Provides the mounting components required for a compatible K20-powered Honda S2000.

• OEM-Position Engine Swap: Utilizes the factory engine mounting positions.

• Factory Engine Mount Incompatibility: Addresses mounting differences between the original F-Series engine and replacement K-Series engine.

• Conversion-Specific Mounting Requirements: Includes specialized mounts and brackets for the supported configuration.

• Improved Drivetrain Stability: Performance polyurethane helps control excessive engine movement.

• Reduced Mount Deflection: Maintains more consistent drivetrain positioning during acceleration and shifting.

• Performance Engine Upgrades: Supports properly configured naturally aspirated and forced-induction K20 builds.

• Track and Racing Applications: Provides increased mount rigidity for demanding driving conditions.

• Complete Conversion Mounting Solution: Includes the primary mounts and associated brackets for the specified conversion.

Installation Notes

1. Verify Vehicle Compatibility: Confirm that the vehicle is a 2000–2009 Honda S2000 AP1 or AP2.

2. Confirm Engine Selection: Verify that the selected K-Series engine is compatible with the 90758 mounting configuration.

3. Confirm Transmission Compatibility: Verify the selected manual transmission and any required engine-to-transmission adapter components.

4. Inspect the Chassis: Check the engine bay, mounting locations, and surrounding chassis components for damage or corrosion.

5. Prepare the Vehicle: Follow the appropriate Honda service procedures for removing the original F-Series engine and related components.

6. Support the Drivetrain: Properly support the replacement K-Series engine and transmission during installation.

7. Install the Driver-Side Mount: Position the Innovative Mounts 90716 according to the manufacturer's installation instructions.

8. Install the Driver-Side Bracket: Install the Innovative Mounts 90710-SB mounting bracket.

9. Install the Passenger-Side Mount: Position the Innovative Mounts 90726 passenger-side mounting component.

10. Install the Passenger-Side Bracket: Install the second Innovative Mounts 90710-SB bracket.

11. Install the Rear Transmission Mount: Position the Innovative Mounts 90730 rear mounting component.

12. Install the Rear Mounting Bracket: Install the Innovative Mounts 90730-SB bracket.

13. Verify OEM Mounting Position Alignment: Ensure the drivetrain is correctly positioned using the intended factory mounting locations.

14. Check Mount Preload: Verify that the mounts are properly aligned without excessive binding or preload.

15. Install the Required Hardware: Use the mounting hardware supplied by Innovative Mounts and any factory hardware specified in the installation instructions.

16. Torque Mounting Fasteners: Follow the manufacturer's installation instructions and applicable Honda service procedures.

17. Inspect Engine Bay Clearance: Verify clearance around the engine, transmission, chassis, steering components, cooling system, and exhaust.

18. Complete Supporting Modifications: Install the required wiring, cooling system, fuel system, drivetrain adapters, and other conversion components.

19. Check for Additional Vibration: Some increase in noise, vibration, and harshness is normal when using performance polyurethane mounts.

20. Perform a Final Inspection: Verify mounting alignment, fastener security, and drivetrain clearance before operating the vehicle.

21. Recheck After Initial Use: Inspect the mounting components and hardware after the initial driving period.

Important: Innovative Mounts advises that mounts showing bolt impressions from installation cannot be returned or exchanged. Confirm fitment before installation.

Professional installation by an experienced engine swap specialist is strongly recommended.

What's Included

The Innovative Mounts 90758 K-Series OEM-position conversion mount kit includes:

• 1 × Innovative Mounts 90716 Driver-Side Engine Mount

• 2 × Innovative Mounts 90710-SB Driver/Passenger Mounting Brackets

• 1 × Innovative Mounts 90726 Passenger-Side Engine Mount

• 1 × Innovative Mounts 90730 Rear Transmission Mount

• 1 × Innovative Mounts 90730-SB Rear Mounting Bracket

• Performance polyurethane bushings in the selected hardness configuration

• Manufacturer-supplied installation hardware

Additional Information

This listing is for the K-Series engine swap mounting system designed for Honda S2000 AP1/AP2 chassis using the OEM mounting positions.

The following components are not included unless separately specified:

• Honda K-Series engine

• Manual transmission

• Engine-to-transmission adapter or conversion assembly

• Clutch and flywheel components

• Engine wiring harness or ECU

• Cooling system conversion components

• Fuel system conversion components

• Exhaust components

• Additional drivetrain conversion components

Verify the supplied components and required fasteners against the manufacturer packaging and installation instructions.

Transform your Honda S2000 with the Innovative Mounts 90758 Steel K-Series OEM-Position Engine Conversion Mount Kit, engineered specifically for 2000–2009 Honda S2000 AP1 and AP2 chassis.

Featuring durable steel construction, OEM-position mounting geometry, conversion-specific brackets, CAD/CAM engineering, stress-analyzed components, and performance polyurethane bushings, the 90758 provides the specialized mounting solution needed for a properly configured Honda K-Series engine conversion.

Whether you're building a naturally aspirated K20-powered S2000, developing a turbocharged performance project, or preparing a dedicated road racing or motorsport vehicle, Innovative Mounts delivers a purpose-built drivetrain mounting solution.