Upgrade your fourth-generation Honda Prelude with the Hasport BB1K4 K-Series Engine Swap Mount Kit, designed to provide the specialized mounting foundation needed to install a compatible Honda K20 or K24 engine and manual transmission into the 1992–1996 Honda Prelude BB chassis.

The Hasport BB1K4 is engineered for builders looking to replace the factory H-Series or F-Series drivetrain with Honda's popular K-Series platform. Its application-specific mounting system provides the engine and transmission support required for a performance-oriented K-Series conversion.

Whether you're building a high-revving K20, a torque-focused K24, or a custom turbocharged Prelude, the BB1K4 delivers the precision-engineered mounting components and polyurethane bushings needed for dependable drivetrain positioning.

Designed for Fourth-Generation Honda Prelude K-Series Swaps

The 1992–1996 Honda Prelude provides a popular platform for custom performance builds, while Honda's K-Series engine family offers extensive aftermarket support and significant naturally aspirated and forced-induction performance potential.

The BB1K4 allows builders to combine these platforms using a purpose-built engine mounting system.

Key benefits include:

• Application-specific mounting for the fourth-generation Prelude.

• Support for compatible Honda K20 and K24 engines.

• Engine and transmission positioning designed for the BB chassis.

• Reduced excessive drivetrain movement.

• Improved drivetrain stability during acceleration and shifting.

• A durable mounting foundation for street and competition builds.

K20 and K24 Engine Compatibility

The Hasport BB1K4 is designed to accommodate compatible Honda K-Series engines, including popular K20 and K24 configurations.

K20 engines are frequently selected for their high-revving performance characteristics, while K24 engines offer increased displacement and torque potential.

Engine compatibility depends on the exact block, engine-side mounting brackets, and transmission combination. Additional engine-specific mounting components may be required for certain configurations.

Precision-Engineered Mounting Components

Hasport develops its engine mounting systems using CAD/CAM technology to achieve consistent manufacturing quality, accurate fitment, and dependable structural strength.

The BB1K4 provides application-specific engine and transmission mounting components designed for the demands of a K-Series conversion.

Performance Polyurethane Bushings

Hasport's polyurethane bushings help limit excessive engine and transmission movement compared with conventional factory rubber mounts.

Reduced drivetrain movement helps maintain consistent engine positioning during acceleration, deceleration, and gear changes.

Multiple bushing hardness options allow builders to select the appropriate balance between street comfort and drivetrain rigidity.

Features

• 1992–1996 Honda Prelude Compatibility: Designed for fourth-generation Prelude BB chassis applications.

• K-Series Engine Swap Design: Supports compatible Honda K20 and K24 engine configurations.

• Application-Specific Mounting Geometry: Engineered for K-Series drivetrain positioning within the Prelude engine bay.

• Precision-Engineered Construction: Designed for dependable fitment and structural strength.

• Performance Polyurethane Bushings: Help reduce excessive drivetrain movement.

• Improved Engine Stability: Limits unwanted engine rocking during acceleration and shifting.

• Durable Mounting Components: Built for performance-oriented engine conversions.

• Multiple Bushing Hardness Options: Available for street and competition applications.

• Naturally Aspirated and Turbocharged Applications: Suitable for compatible performance K-Series builds.

• Hasport Performance Engineering: Developed specifically for Honda engine swap applications.

Popular Performance Applications

1992–1996 Honda Prelude K-Series Conversions

Provides the engine and transmission mounting foundation for fourth-generation Prelude K-Series swaps.

K20 Performance Builds

Supports compatible high-revving K20 engine configurations for naturally aspirated performance applications.

K24A2 Engine Swaps

Provides a mounting solution for compatible K24A2 engines offering increased displacement and torque potential.

K20/K24 Hybrid Builds

Suitable for compatible hybrid K-Series engine combinations using the required mounting components.

Naturally Aspirated Performance

Ideal for K-Series engines equipped with upgraded camshafts, intake manifolds, headers, and other performance modifications.

Turbocharged K-Series Applications

Provides drivetrain support for custom forced-induction Prelude builds.

Street and Track Performance

Polyurethane bushings help reduce excessive drivetrain movement during aggressive driving.

Additional Information

• Manufacturer: Hasport Performance
• Part Number: BB1K4
• Product Type: K-Series Engine Swap Mount Kit
• Vehicle Application: 1992–1996 Honda Prelude
• Chassis: BB
• Engine Compatibility: Compatible Honda K20 / K24
• Transmission Compatibility: K-Series manual transmission family specified for BB1K4
• Bushing Material: Performance Polyurethane
• Available Bushing Hardness Options: 62A / 70A / 88A / 94A
• Installation Type: K-Series Engine Swap Conversion

Available Polyurethane Bushing Hardness Options

62A – Street

Designed for street-driven vehicles where vibration isolation and everyday comfort are important considerations.

70A – Race

Provides increased drivetrain rigidity for aggressive street driving and occasional track use.

88A – Extreme Race

A firmer polyurethane configuration intended for demanding motorsport applications.

94A – Most Extreme Race

The stiffest available configuration, intended for dedicated competition vehicles where maximum drivetrain rigidity takes priority over passenger comfort.

Higher-durometer bushings generally increase noise, vibration, and harshness transmitted into the vehicle cabin.

Common Reasons for Replacement or Upgrade

• K-Series Engine Conversion: Provides the specialized mounting components needed for a compatible K20 or K24 swap.

• Prelude Drivetrain Upgrade: Supports replacing the original drivetrain with a modern Honda K-Series engine.

• Increased Performance Potential: Opens access to extensive K-Series aftermarket upgrades.

• Reduced Drivetrain Movement: Polyurethane bushings help limit excessive engine and transmission movement.

• Improved Engine Stability: Helps maintain consistent drivetrain positioning during acceleration.

• Improved Shifting Consistency: Reduced mount deflection helps stabilize the transmission.

• Street and Motorsport Applications: Provides durable mounting support for performance-oriented Prelude builds.

Installation Notes

1. Verify Vehicle Compatibility: Confirm that the vehicle is a 1992–1996 Honda Prelude.

2. Confirm Engine Compatibility: Identify the exact Honda K20 or K24 engine being installed.

3. Verify Transmission Compatibility: Confirm that the selected K-Series manual transmission matches the BB1K4 mounting configuration.

4. Inspect Engine-Side Brackets: Verify that all required mounting brackets and attachment points are present.

5. Plan Supporting Swap Components: Additional axles, wiring, ECU, shifter, clutch, cooling, and exhaust components will be required.

6. Inspect the Chassis: Verify the condition of the engine bay, frame rails, and existing mounting points.

7. Complete Required Chassis Modifications: Follow Hasport's application-specific installation instructions for any required removal or modification of factory mounting brackets.

8. Support the Engine and Transmission: Use appropriate lifting equipment and drivetrain supports.

9. Install the Hasport Mounting Components: Position the mounts and brackets according to the manufacturer's instructions.

10. Verify Engine Positioning: Check hood clearance, oil pan clearance, and surrounding engine bay components.

11. Inspect Axle Alignment: Confirm proper axle engagement, operating angles, and clearance.

12. Verify Intake and Exhaust Fitment: Check compatibility with the selected intake manifold, header, and exhaust routing.

13. Complete Supporting Systems: Install and verify the required wiring, ECU, fuel, cooling, clutch, and shifter components.

14. Torque Mounting Hardware: Follow Hasport's instructions and applicable Honda service specifications.

15. Inspect After Installation: Recheck mounting hardware and drivetrain clearances after the initial driving period.

Professional installation is recommended because K-Series engine swaps may require chassis modifications and extensive drivetrain and electrical work.

What's Included

• Hasport BB1K4 K-Series engine swap mounting components

• Application-specific engine and transmission mounting brackets

• Performance polyurethane bushings in the selected hardness configuration

• Associated mounting hardware supplied with the kit

Important: The BB1K4 is an engine and transmission mounting kit, not a complete K-Series conversion package.

The engine, transmission, axles, ECU, wiring harness, shifter assembly, shift cables, clutch conversion components, and other supporting swap parts are not included unless otherwise specified.

Upgrade your fourth-generation Honda Prelude with the Hasport BB1K4 K-Series Engine Swap Mount Kit, engineered to provide dependable drivetrain mounting for compatible Honda K20 and K24 engine conversions.

Featuring application-specific mounting components, performance polyurethane bushings, and precision-engineered construction, the BB1K4 provides the support and stability needed for a serious K-Series swap.

Whether you're building a naturally aspirated K20 street car, a high-torque K24 Prelude, or a custom turbocharged performance project, Hasport delivers a purpose-built mounting foundation for your build.