Transform your sixth-generation Honda Civic with the Innovative Mounts B90050 Billet Aluminum K-Series Engine Conversion Mount Kit, designed for 1996–2000 Honda Civic EK/EJ/EM chassis undergoing a Honda K20 or K24 engine swap while retaining the factory-style 1996–2000 Civic subframe.

The B90050 provides a purpose-built mounting solution for installing a compatible Honda K-Series engine and manual transmission into the sixth-generation Civic platform. It combines billet aluminum construction with performance polyurethane bushings to deliver improved drivetrain stability, reduced excessive engine movement, and a premium engine bay appearance.

The 1996–2000 Honda Civic is one of the most popular platforms for K-Series engine conversions thanks to its lightweight construction, extensive aftermarket support, and proven performance potential. Replacing the original D-Series engine with a K20 or K24 opens the door to increased horsepower, improved torque, and a wide range of naturally aspirated and forced-induction upgrades.

Unlike factory rubber engine mounts, which prioritize passenger comfort and vibration isolation, Innovative Mounts' performance polyurethane bushings are designed to control drivetrain movement during acceleration, deceleration, and shifting.

The B90050 is particularly appealing to enthusiasts who want the performance benefits of a K-Series conversion while maintaining the factory EK-style subframe arrangement.

The billet aluminum construction offers a premium alternative to conventional steel conversion mounts, making the kit an excellent choice for performance street cars, detailed engine bays, autocross builds, drag racing applications, and dedicated track vehicles.

Important: The Innovative Mounts B90050 is designed for K-Series swaps using the 1996–2000 Civic EK-style subframe. Vehicles using a 1992–1995 Civic EG-style subframe require a different mounting configuration, such as the Innovative Mounts B90051.

Features

• 1996–2000 Honda Civic Compatibility: Designed for compatible sixth-generation Civic EK/EJ/EM chassis.

• K-Series Engine Conversion: Supports properly configured Honda K20 and K24 engine swaps.

• Factory EK Subframe Configuration: Engineered for applications retaining the 1996–2000 Civic-style front subframe.

• Billet Aluminum Construction: Provides a durable, lightweight mounting solution with a premium machined appearance.

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

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

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

• Purpose-Built Conversion Geometry: Designed to position the K-Series drivetrain within the supported chassis.

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

• Multiple Bushing Hardness Options: Allows selection according to street or competition use.

• Performance-Oriented Design: Suitable for naturally aspirated and forced-induction K-Series applications.

• EK Subframe Compatibility: Eliminates the need to change to an EG-style subframe solely to use this mounting configuration.

• Premium Engine Bay Appearance: Billet construction complements polished, anodized, and other performance engine bay components.

• Dedicated K-Series Swap Application: Engineered specifically for the supported sixth-generation Civic platform.

Popular Performance Applications

1996–2000 Honda Civic K20 Swaps

Provides the specialized mounting system needed for compatible K20 engine conversions while retaining the EK-style subframe.

1996–2000 Honda Civic K24 Swaps

Supports properly configured K24 engine conversions for enthusiasts seeking increased displacement and torque.

K20/K24 Hybrid Builds

Suitable for compatible K-Series hybrid engine combinations using the correct mounting brackets and transmission.

Naturally Aspirated K-Series Performance Builds

Supports high-revving K20 and high-torque K24 engines equipped with performance intake manifolds, headers, camshafts, and other upgrades.

Turbocharged K-Series Applications

Provides a performance-oriented mounting foundation for properly configured forced-induction builds.

Daily-Driven K-Swapped Civics

Softer polyurethane bushing configurations can provide improved drivetrain control while retaining some vibration isolation.

Autocross and Road Racing

Reduced mount deflection helps maintain consistent drivetrain positioning during acceleration, braking, and cornering.

Drag Racing Applications

Firmer polyurethane configurations help resist excessive drivetrain movement during aggressive launches.

Show and Performance Engine Bays

Billet aluminum construction provides a premium appearance for detailed K-Series conversions.

Additional Information

• Manufacturer: Innovative Mounts
• Part Number: B90050
• Product Type: Billet Aluminum K-Series Engine Conversion Mount Kit
• Vehicle Application: 1996–2000 Honda Civic
• Chassis Compatibility: EK / EJ / EM, Subject to Application
• Engine Compatibility: Compatible Honda K20 / K24
• Transmission Compatibility: Compatible K-Series Manual
• Subframe Requirement: 1996–2000 Honda Civic EK-Style Subframe
• Mount Construction: Billet Aluminum
• Bushing Material: Performance Polyurethane
• Installation Type: K-Series Engine and Transmission Conversion
• Steel Alternative: Innovative Mounts 90050
• EG-Subframe Alternative: Innovative Mounts B90051

Polyurethane Bushing Selection

Innovative Mounts performance mounting systems are offered with different polyurethane bushing hardness options to accommodate street and racing applications. Confirm available B90050 configurations before selecting a kit.

60A – Street

A softer performance bushing option for vehicles where improved drivetrain stability is desired while limiting additional vibration.

75A – Performance Street

A firmer option for modified street vehicles and occasional track use.

85A – Race

Designed for applications where increased drivetrain rigidity is preferred over passenger comfort.

95A – Extreme Race

A very firm polyurethane configuration intended for aggressive motorsport use.

Important: Firmer bushings generally transmit more noise, vibration, and harshness into the vehicle. Select the appropriate configuration based on vehicle use and acceptable cabin vibration.

Innovative Mounts B90050 vs. B90051

Innovative Mounts B90050 – EK Subframe

• Designed for compatible 1996–2000 Honda Civic chassis

• Uses the EK-style front subframe configuration

• Supports compatible K20 and K24 engine conversions

• Billet aluminum construction

Innovative Mounts B90051 – EG Subframe

• Designed for compatible 1996–2000 Honda Civic chassis

• Requires a 1992–1995 Civic EG-style subframe configuration

• Supports compatible K20 and K24 engine conversions

• Billet aluminum construction

Important: The B90050 and B90051 use different subframe mounting arrangements and are not interchangeable without the appropriate chassis and subframe configuration.

Innovative Mounts B90050 vs. 90050

Innovative Mounts B90050 – Billet Aluminum

• Billet aluminum mounting components

• Performance polyurethane bushings

• Premium machined appearance

• Designed for compatible K-Series swaps using the EK subframe

Innovative Mounts 90050 – Steel

• Steel mounting components

• Performance polyurethane bushings

• Designed for the same general K-Series conversion application

• Conventional performance mount appearance

Additional Components Required for a K-Series Swap

The Innovative Mounts B90050 addresses the engine and transmission mounting portion of the conversion. Depending on the selected drivetrain, additional components may include:

• Compatible Honda K20 or K24 engine

• Compatible K-Series manual transmission

• Required engine-side mounting bracket

• Swap-compatible axles

• Compatible intermediate shaft

• K-Series shifter assembly and shift cables

• Hydraulic clutch conversion components

• K-Series engine wiring harness

• Chassis conversion wiring harness

• Compatible ECU or aftermarket engine management system

• Engine swap-compatible radiator

• Cooling hoses and coolant routing components

• Compatible fuel delivery components

• K-Series swap-compatible exhaust header

• Exhaust system modifications

• Intake system and throttle body components

• Accessory and belt routing components

• Additional clearance or chassis modifications required by the selected drivetrain

Exact requirements depend on the engine, transmission, chassis, and intended application.

Common Reasons for Replacement or Upgrade

• K-Series Engine Conversion: Provides a specialized mounting solution for installing a K20 or K24 drivetrain.

• Retaining the EK Subframe: Supports a K-Series swap without changing to an EG-style subframe solely for mount compatibility.

• Higher Performance Potential: Enables compatible K-Series engine installations in the sixth-generation Civic.

• Excessive Drivetrain Movement: Polyurethane bushings help control unwanted engine movement.

• Improved Drivetrain Positioning: Helps maintain consistent engine and transmission alignment under load.

• Potential Wheel Hop Reduction: Reduced mount deflection may help minimize wheel hop.

• Billet Aluminum Appearance: Provides a premium engine bay upgrade.

• Track and Competition Use: Offers firmer drivetrain mounting for demanding performance applications.

• Naturally Aspirated and Turbocharged Builds: Supports a broad range of properly configured K-Series performance projects.

Installation Notes

1. Verify Chassis Compatibility: Confirm that the vehicle is a supported 1996–2000 Honda Civic.

2. Confirm Subframe Configuration: Verify that the vehicle uses the required EK-style subframe arrangement.

3. Confirm Engine Compatibility: Check the selected K20 or K24 engine and required engine-side mounting bracket.

4. Confirm Transmission Compatibility: Verify that the selected K-Series manual transmission has the correct mounting provisions.

5. Inspect the Chassis: Check the factory mounting areas and surrounding structural components for corrosion, cracks, previous repairs, or modifications.

6. Prepare the Vehicle: Safely support the chassis and remove the original drivetrain according to the appropriate Honda service procedures.

7. Prepare the K-Series Drivetrain: Install the necessary engine-side brackets and compatible transmission components.

8. Install the Conversion Mounts: Position the B90050 mounting components according to the manufacturer's instructions.

9. Position the Engine and Transmission: Carefully lower the assembled drivetrain into the engine bay and align the mounting points.

10. Verify Mount Alignment: Ensure the mounting system is correctly positioned without excessive preload or binding.

11. Inspect Axle Geometry: Confirm proper axle alignment and clearance throughout the required suspension movement.

12. Check Engine Bay Clearance: Inspect the hood, radiator, exhaust, intake, accessories, steering components, and surrounding chassis structures.

13. Install the Correct Hardware: Use the mounting fasteners and brackets specified by Innovative Mounts.

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

15. Complete Supporting Systems: Install and verify the clutch hydraulics, shift cables, axles, wiring, fuel system, and cooling system.

16. Inspect for Interference: Confirm that the engine and transmission do not contact surrounding components during normal drivetrain movement.

17. Perform a Final Inspection: Verify all mounting hardware, drivetrain clearances, and supporting components before operating the vehicle.

18. Recheck After Initial Use: Inspect the mounting system and related hardware after the initial driving period.

Important: K-Series conversions can require additional modifications depending on the exact engine, transmission, chassis, and accessory configuration. Confirm the manufacturer's current installation requirements before beginning the swap.

Professional installation by an experienced Honda K-Series engine swap specialist is recommended.

What's Included

The Innovative Mounts B90050 Billet Aluminum K-Series Engine Conversion Mount Kit includes the billet aluminum drivetrain mounting components supplied by Innovative Mounts for the specified 1996–2000 Honda Civic EK-subframe K-Series conversion.

• Billet aluminum engine and transmission mounting components

• Performance polyurethane bushings in the selected configuration

• Manufacturer-supplied brackets and mounting hardware, where applicable

Important: Verify the exact individual mount part numbers, bracket contents, and hardware package against the current manufacturer listing before publishing a component-level inventory.

Components Not Included Unless Otherwise Specified

• Honda K20 or K24 engine

• K-Series manual transmission

• Engine-side brackets not supplied with the kit

• Axles and intermediate shaft

• Shifter and shift cables

• Hydraulic clutch conversion components

• Engine wiring and ECU

• Cooling and fuel system conversion components

• Exhaust components

• Additional K-Series swap components

Transform your sixth-generation Honda Civic with the Innovative Mounts B90050 Billet Aluminum K-Series Engine Conversion Mount Kit, designed for compatible 1996–2000 Honda Civic EK/EJ/EM chassis using K20 or K24 engines and the EK-style subframe.

Featuring billet aluminum construction, performance polyurethane bushings, and a purpose-built K-Series conversion mounting arrangement, the B90050 provides a performance-oriented foundation for naturally aspirated, turbocharged, and competition builds.

Whether you're installing a K20A2, building a high-torque K24A2-powered Civic, or developing a turbocharged K-Series project, the Innovative Mounts B90050 delivers a specialized drivetrain mounting solution for your conversion.