JDM Honda B16A 1.6L DOHC VTEC Engine + 5-Speed LSD Transmission – EG6 SiR-II – OBD1 – Complete Swap Package

Product Description

Bring legendary Honda B-series VTEC performance to your project with this JDM Honda B16A DOHC VTEC engine and 5-speed manual transmission with factory Limited Slip Differential (LSD). This complete powertrain package is based on the JDM Honda Civic EG6 SiR/SiR-II B16A platform, one of Honda's most recognized high-revving naturally aspirated engines. The package combines the B16A's compact 1.6L DOHC VTEC design with a close-ratio 5-speed manual transmission and LSD for excellent performance in lightweight Honda chassis. The package includes the engine, transmission, intake and exhaust components, starter, alternator, distributor, VTEC components, engine wiring harness, ECU, sensors, and additional swap components as listed below. With its high-revving character, strong aftermarket support, and compact dimensions, the B16A remains a popular choice for Civic, Del Sol, Integra, CRX, restoration, street-performance, and track builds.

TECHNICAL SPECIFICATIONS

Engine

• Brand: Honda
• Engine Family: B-Series
• Engine Code: B16A
• Specification: JDM SiR-II / EG6
• Displacement: 1.6L / 1,595 cc
• Configuration: Inline 4-Cylinder
• Valve Train: DOHC VTEC
• Fuel System: Multi-Point Fuel Injection
• Compression Ratio: Approximately 10.4:1
• Bore: 81 mm
• Stroke: 77.4 mm
• Aspiration: Naturally Aspirated
• VTEC Engagement: Approximately 5,500 RPM
• Redline: Approximately 8,200 RPM
• Horsepower: Approximately 160–170 HP depending on exact B16A specification
• Torque: Approximately 111–116 lb-ft depending on exact specification
• ECU: JDM OBD1-compatible system
• Block: Aluminum alloy
• Cylinder Head: Aluminum alloy
• Timing: Timing belt

Transmission

• Type: 5-Speed Manual
• Application: JDM B16A / SiR-II
• Transmission Codes: S4C / Y21 or applicable JDM equivalent
• Differential: Factory Limited Slip Differential (LSD)
• Final Drive: Approximately 4.4:1
• Clutch: Manual / hydraulic-type application
• Shift Pattern: H-Pattern
• Gearing: Close-ratio performance gearing

B-series transmission references identify Y21/S4C transmissions with JDM B16A applications and 4.4 final-drive gearing; LSD availability and exact internal specifications should be confirmed from the transmission case code.

FEATURES

• Genuine JDM Honda B16A platform
• EG6 Civic SiR-II specification
• DOHC VTEC
• 1.6L naturally aspirated inline-four
• High-revving 8,200 RPM platform
• Multi-point fuel injection
• OBD1 electronics
• 5-speed manual transmission
• Factory LSD transmission
• Close-ratio gearing
• 4.4 final drive
• Intake manifold
• Throttle body
• Exhaust manifold
• Alternator
• Starter motor
• Distributor
• VTEC solenoid
• Engine wiring harness
• ECU
• Engine sensors
• OEM engine mounts when available

WHY YOU'LL LOVE IT

The B16A is one of Honda's most famous performance engines, combining compact dimensions with DOHC VTEC technology and an enthusiastic high-RPM powerband. The lightweight 1.6L naturally aspirated design makes it particularly well suited to lightweight Honda chassis where responsiveness, balance, and engine character are just as important as peak horsepower. Adding the 5-speed LSD transmission makes this package especially attractive for enthusiasts looking for a more complete B-series swap rather than purchasing an engine alone.

PERFORMANCE & APPLICATIONS

The B16A is an excellent platform for:

• Street-performance builds
• Honda Civic swaps
• Restoration projects
• Autocross cars
• Track builds
• Weekend performance cars
• Lightweight daily drivers
• Naturally aspirated builds
• Future turbo projects

The factory LSD can provide improved traction during acceleration and cornering compared with an open differential, making the transmission particularly desirable for performance-oriented applications.

COMPATIBLE VEHICLES

Common applications and swap platforms include:

• 1992–1995 Honda Civic EG chassis
• JDM Honda Civic SiR / SiR-II
• 1992–1995 Honda CR-X del Sol
• Honda EG2 platforms
• Honda EG9 platforms
• 1990s Honda/Acura B-series swap projects
• CRX conversions using the appropriate mounts and wiring
• Other compatible B-series Honda chassis

A B16A swap is not universally plug-and-play. Mounts, axles, wiring, ECU, fuel system, exhaust, cooling system, transmission linkage, and emissions requirements can vary by chassis and market.

CONDITION

Used JDM Engine & Transmission Package This is a used Japanese-imported powertrain package sourced from a JDM donor vehicle. The supplier states that engines are compression tested, visually inspected, and checked for mechanical integrity before shipping. The supplier also states that these engines are genuine original JDM units rather than rebuilt or assembled hybrid/“Frankenstein” engines. Because this is a used imported powertrain, exact mileage, cosmetic condition, and included components should be confirmed for the specific unit before purchase.

WHAT'S INCLUDED

The complete swap package includes:

• B16A DOHC VTEC engine
• 5-speed manual transmission
• Factory LSD transmission
• Intake manifold
• Throttle body
• Exhaust manifold
• Alternator
• Starter motor
• Distributor
• VTEC solenoid
• Engine wiring harness
• ECU
• Engine sensors
• OEM engine mounts when available

The package is intended to provide the major components needed for a B16A swap, but chassis-specific installation parts such as mounts, axles, wiring conversions, exhaust components, radiator/cooling components, fuel-system modifications, and other installation hardware may be required depending on the vehicle.

WARRANTY

Used Engine Warranty Warranty coverage should be confirmed with EZ Boats Marine / the applicable JDM engine supplier before purchase. Warranty terms may vary depending on the engine, transmission, installation, and intended application.

SHIPPING INFORMATION

This is a large automotive powertrain package and will typically require freight shipping. Shipping availability, freight charges, delivery location, and residential/commercial delivery requirements should be confirmed before ordering.

IMPORTANT DELIVERY INFORMATION

• Verify the exact engine code before installation.
• Verify the transmission case code and LSD configuration.
• Confirm the ECU and wiring harness are compatible with your chassis.
• Confirm whether your vehicle requires OBD1 or an OBD conversion.
• Verify engine mounts and transmission mounts for your specific chassis.
• Confirm axle compatibility.
• Verify fuel-system requirements.
• Confirm exhaust and intake compatibility.
• Verify cooling-system requirements.
• Confirm clutch and hydraulic-line compatibility.
• Professional installation is recommended.
• Emissions legality varies by state and vehicle application.

WHY BUY FROM EZ BOATS MARINE?

• Complete engine packages
• Major components included together
• Genuine JDM powertrain sourcing
• Inspected used inventory
• Compression-tested engines where applicable
• Nationwide freight availability
• Support with engine and swap-related questions
• Straightforward product information

FREQUENTLY ASKED QUESTIONS

What engine is included?

This package includes a JDM Honda B16A 1.6L DOHC VTEC inline-four engine associated with the EG6 SiR-II platform.

Is the transmission included?

Yes. The package includes a 5-speed manual transmission with a factory LSD.

Is this an OBD1 engine?

The EG6 SiR-II B16A platform is associated with Honda's OBD1-era electronics. The exact ECU and harness should be verified against the specific engine supplied.

How much horsepower does the B16A make?

The exact output depends on the specific B16A generation and market specification. The original listing advertises 160 HP, while B16A SiR-II references commonly list approximately 170 HP / 172 PS. The exact engine code and ECU should be verified before publishing a definitive horsepower figure.

Does the transmission have LSD?

Yes, this package is advertised with a factory Limited Slip Differential. Confirm the LSD configuration from the transmission identification code before shipment.

What transmission codes are associated with this package?

The listing identifies S21/Y21 depending on market, while B-series transmission references associate Y21/S4C with JDM B16A/SiR-II applications. The exact transmission case code should be verified on the unit.

Is this a complete swap?

It includes the major engine and transmission components listed above. However, a true installation-ready swap can require additional chassis-specific parts such as mounts, axles, wiring conversion, exhaust, cooling components, and fuel-system components.

Is mileage available?

The current listing does not provide a specific mileage figure for this individual engine.

Is this engine rebuilt?

The supplier states that these are genuine original JDM engines rather than rebuilt or “Frankenstein” assemblies.

Is the B16A good for performance builds?

Yes. The B16A's DOHC VTEC architecture, high-RPM capability, compact size, and extensive aftermarket support make it a popular platform for naturally aspirated, street, autocross, and track builds.