B20B Engine for Sale: Everything You Need to Know Before Buying

If you’re looking for a powerful, affordable, and versatile engine for your Honda build, the B20B engine for sale continues to be one of the most sought-after choices among car enthusiasts. Originally produced by Honda in the late 1990s, the B20B engine belongs to the legendary B-series family, known for its balance of performance and reliability. Whether you’re planning a B20B swap into your Civic, Integra, or CR-V, or simply replacing a worn-out motor, understanding the specifications, benefits, and where to buy a B20B engine online can save you time, money, and hassle.

In this guide, we’ll break down everything you need to know about the B20B engine for sale, including specs, compatibility, pricing, and FAQs.

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What Is the B20B Engine?

The B20B is a 2.0-liter inline-four engine from Honda, part of the B-series line that includes legendary motors like the B16A, B18C, and B20Z. It was primarily used in Japanese and North American Honda CR-V models from 1996 to 2001.

Key B20B Engine Specs:

The B20B was engineered for torque and drivability, which made it an ideal engine for crossovers like the CR-V. However, its DOHC head and B-series block make it a favorite for engine swaps and performance builds.

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Why Is the B20B Engine Popular?

Despite being over two decades old, the B20B engine remains highly desirable in the Honda tuning community. Here’s why:

1. Affordability

Compared to other Honda performance engines like the B16 or K20 series, the B20B engine for sale is more budget-friendly. It’s widely available as a used JDM import.

2. High Compatibility

The B20B can be easily swapped into various Honda models. Thanks to its shared B-series architecture, it fits into Civics, Integras, and Del Sols with minor modifications.

3. Great for Frankenstein Builds

Many builders use the B20B bottom end with a VTEC head (usually from a B16A or B18C) in a LS-VTEC or B20-VTEC swap, creating a high-revving, high-torque engine that rivals much newer motors.

4. Reliable for Daily Driving

With its low compression and sturdy internals, the B20B is known for longevity and reliability, even when boosted.

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Common Applications for the B20B Engine

The B20B engine was originally installed in the following vehicles:

• 1996–1999 Honda CR-V (Japan/US)

• 1996–2001 Honda Orthia (Japan)

• 1997–2001 Honda Stepwgn (Japan)

But due to its swap potential, it’s now commonly found in:

• Honda Civic (EG/EK)

• Acura Integra (DC2/DB8)

• Honda Del Sol

• Honda Prelude

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Where to Find a B20B Engine for Sale

If you’re searching for a B20B engine for sale, consider the following sources:

1. Online JDM Engine Retailers

Many reputable JDM engine importers stock the Honda B20B engine:

• JDM Engine Depot

• HMotorsOnline

• JDM California Motors

• J-Spec Auto Sports

These vendors usually offer:

• Used JDM B20B engines

• Compression and leakdown tested units

• Warranty (30–90 days)

• Complete engine swaps with transmission and ECU

2. eBay and Facebook Marketplace

You can find individual sellers offering B20B engines in your region. Always check for:

• Mileage

• Compression test results

• Return policy

• Delivery or pickup options

3. Local Junkyards and Salvage Yards

Many CR-Vs in salvage yards still have usable B20B motors. You’ll need to remove it yourself or pay a fee.

4. Honda Tuner Forums

Websites like Honda-Tech, ClubIntegra, and Civic Forums often have engines listed in classifieds.

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What to Look for When Buying a B20B Engine

When evaluating a B20B engine for sale, here are critical factors to consider:

1. Engine Condition

• Has it been compression tested?

• Are there signs of oil leaks, rust, or sludge buildup?

• Does it come with accessories (intake manifold, distributor, sensors)?

2. Mileage

• JDM engines typically claim 40,000 to 60,000 miles due to stricter regulations in Japan.

• Verify if odometer readings or import documents are available.

3. OBD Compatibility

• Ensure the engine matches your car’s OBD1 or OBD2 system.

• An OBD2A B20B may require sensor changes if installed in an OBD1 vehicle.

4. Transmission and ECU

• Some sellers offer full B20B swap packages including transmission, ECU, axles, and mounts.

• This can save time and compatibility issues.

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How Much Does a B20B Engine Cost?

Prices vary based on condition, mileage, included parts, and the seller’s location.

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B20B Swap Guide: What You Need

If you’re planning a B20B engine swap, here’s what you’ll typically need:

Basic Parts:

• B20B Engine (OBD compatible)

• Mounts (OEM or aftermarket)

• ECU (P75 or P28 if converting to VTEC)

• Wiring harness

• Shift linkage

• Axles compatible with B-series transmission

• Distributor (OBD1 or OBD2)

Optional Parts for B20-VTEC Build:

• B16A or B18C VTEC head

• Golden Eagle or Skunk2 VTEC conversion kit

• ARP head studs

• Upgraded oil pump

• Hondata or chipped ECU

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Pros and Cons of the B20B Engine

✅ Pros:

• High torque for daily use and midrange acceleration

• Affordable and widely available

• Compatible with many Honda chassis

• Perfect base for B20-VTEC hybrid

• Easy to turbocharge due to low compression

❌ Cons:

• No VTEC (in stock form)

• Redline limited (~6500 RPM)

• Thinner cylinder walls than other B-series engines

• May need ECU tuning for max performance

• Risk of buying a worn or abused engine without inspection

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Maintenance Tips for a Used B20B Engine

To keep your B20B running smoothly:

• Replace timing belt, water pump, and seals before installation.

• Use OEM Honda oil filters and high-quality synthetic oil.

• Regularly inspect spark plugs, ignition wires, and vacuum lines.

• Upgrade the radiator and cooling system if boosting.