Designed for enthusiasts replacing the factory F20C or F22C engine with a Honda K20 i-VTEC engine, the Innovative Mounts 90756 provides the specialized mounting components necessary to position and secure a compatible K20 drivetrain in the S2000 chassis.

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

However, installing a K20 engine into an S2000 requires specialized mounting components to accommodate differences between the original F-Series engine and the replacement K-Series drivetrain.

The Innovative Mounts 90756 addresses these requirements with a purpose-built steel mounting system that utilizes front and passenger-side adapter plates, conversion-specific brackets, and performance polyurethane bushings.

Unlike factory rubber engine mounts, Innovative Mounts' polyurethane bushings are engineered to reduce excessive engine movement during acceleration, deceleration, and shifting. This helps maintain more consistent drivetrain positioning while providing improved responsiveness under load.

Featuring CAD/CAM-engineered components, stress-analyzed construction, and Innovative Mounts' no-tear polyurethane bushing design, the 90756 is an excellent foundation for naturally aspirated K20 builds, turbocharged applications, road racing projects, and dedicated motorsport vehicles.

Important: The Innovative Mounts 90756 is specifically designed for K20 engine conversions using a compatible manual transmission and adapter-plate mounting arrangement. It is not a direct-replacement mount kit for the original F20C/F22C engine or a K24-specific conversion kit.

Features

• K20 Engine Swap Design: Engineered for installing a Honda K20 i-VTEC engine into the Honda S2000.

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

• Manual Transmission Application: Supports the specified K20 manual drivetrain conversion arrangement.

• Adapter-Plate Mounting Configuration: Uses specialized front and passenger-side adapter plates.

• Conversion-Specific Mounting Components: Provides the engine and transmission mounting components required for the supported conversion.

• 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 excessive engine movement while retaining 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 unwanted 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.

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

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

• Mounting Hardware Included: Supplied with the manufacturer's specified installation hardware.

• 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 90756. Provides the specialized mounting components needed to install a compatible K20 engine into an AP1 or AP2 chassis.

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 engine positioning during acceleration, braking, and cornering.

Autocross Builds

Reduced drivetrain movement can help 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 K20 engine mounting arrangement.

Additional Information

• Manufacturer: Innovative Mounts
• Part Number: 90756
• Product Type: Steel K20 Engine Conversion Mount Kit
• Vehicle Application: 2000–2009 Honda S2000
• Chassis Compatibility: AP1 / AP2
• Original Engine: Honda F20C / F22C1
• Conversion Engine Compatibility: Honda K20-Series
• Transmission Configuration: Compatible Manual Transmission / Adapter-Plate Conversion
• Mount Construction: Steel
• Bushing Material: Performance Polyurethane
• Available Bushing Hardness Options: 75A / 85A / 95A
• Mounting Configuration: Conversion Mounts with Front and Passenger-Side Adapter Plates
• Passenger-Side Mount: Innovative Mounts 90723
• Passenger-Side Bracket: Innovative Mounts 90723-SB
• Rear Transmission Mount: Innovative Mounts 90730
• Rear Mounting Bracket: Innovative Mounts 90730-SB
• Front K20 Mount: Innovative Mounts 90743-K20
• Front Mounting Bracket: Innovative Mounts 90743-SB
• Engineering: CAD/CAM Designed and Stress Analyzed
• Mounting Hardware: Included
• Manufacturer-Listed Weight: Approximately 20 lbs
• Warranty: Manufacturer Lifetime Warranty, Subject to Terms

Available Polyurethane Bushing Hardness Options

75A – Black – Street / Performance

The softest available bushing option for the 90756.

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 Conversion Kit

Designed for 2000–2009 Honda S2000 AP1/AP2 chassis being converted to a K20 engine with a compatible manual transmission and adapter-plate mounting arrangement.

Innovative Mounts 90757 – K24 Conversion Kit

Designed for supported Honda S2000 applications being converted to a K24 engine with the corresponding adapter-plate mounting arrangement.

Innovative Mounts 90758 – K-Series Adapter Conversion Kit

A separate K-Series conversion mounting configuration designed around different mounting provisions.

Important: These kits are not interchangeable. Verify the engine family, transmission configuration, and required mounting arrangement before ordering.

Additional Components Required for a K20 S2000 Swap

The Innovative Mounts 90756 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 K20 engine, transmission, and overall vehicle configuration.

Important: The 90756 does not include these additional conversion components.

Common Reasons for Replacement or Upgrade

• K20 Engine Conversion: Provides the mounting components required to install a compatible K20 engine in a Honda S2000.

• Factory Engine Mount Incompatibility: Addresses mounting differences between the original F-Series engine and replacement K20 engine.

• Adapter-Plate Mounting Requirements: Includes conversion-specific components for the supported mounting arrangement.

• 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.

• Coordinated Conversion Mounting Solution: Includes the primary mounts and associated mounting 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 conversion uses a compatible Honda K20 engine. This kit is not the K24-specific version.

3. Confirm Transmission Configuration: Verify compatibility with the selected manual transmission and engine-to-transmission adapter arrangement.

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 K20 engine and transmission during installation.

7. Install the Passenger-Side Mount: Position the Innovative Mounts 90723 according to the manufacturer's installation instructions.

8. Install the Passenger-Side Bracket: Install the Innovative Mounts 90723-SB bracket in the specified location.

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

10. Install the Rear Mounting Bracket: Install the Innovative Mounts 90730-SB bracket according to the manufacturer's instructions.

11. Install the Front K20 Mount: Position the Innovative Mounts 90743-K20 mounting component.

12. Install the Front Mounting Bracket: Install the Innovative Mounts 90743-SB bracket in the specified location.

13. Verify Drivetrain Positioning: Ensure the engine and transmission are properly aligned without excessive mount preload or binding.

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

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

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

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

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

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

20. 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 90756 K20 conversion mount kit includes the following manufacturer-cataloged components:

• 1 × Innovative Mounts 90723 Passenger-Side Engine Mount

• 1 × Innovative Mounts 90723-SB Passenger-Side Mounting Bracket

• 1 × Innovative Mounts 90730 Rear Transmission Mount

• 1 × Innovative Mounts 90730-SB Rear Mounting Bracket

• 1 × Innovative Mounts 90743-K20 Front K20 Engine Mount

• 1 × Innovative Mounts 90743-SB Front Mounting Bracket

• Performance polyurethane bushings in the selected hardness configuration

• Manufacturer-supplied installation hardware

Additional Information

This listing is for the K20 engine swap mounting system designed for Honda S2000 AP1/AP2 chassis.

The following components are not included unless separately specified:

• Honda K20 engine

• Manual transmission

• Engine-to-transmission adapter plate 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 90756 Steel K20 Engine Conversion Mount Kit, engineered specifically for 2000–2009 Honda S2000 AP1 and AP2 chassis.

Featuring durable steel construction, conversion-specific mounting brackets, CAD/CAM engineering, stress-analyzed components, and performance polyurethane bushings, the 90756 provides the specialized mounting solution needed for a properly configured Honda K20 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.