This guide explores the complete Honda engine swap chart, breaking down the compatibility between chassis and engine families, from D-series, B-series, H/F-series, to the modern K-series and R-series powerplants.
Honda Engine Swap Chart
| Engine Code | Donor Vehicle | Compatible Chassis | Mount Kit Required | Transmission Options | ECU/Wiring Notes |
|---|---|---|---|---|---|
| D13B / D14A | Civic (1988–2000) | EF, EG Civic | No (direct fit) | D-series 5-speed | Stock ECU plug-and-play |
| D15Z1 (VTEC-E) | Civic VX | EG, EK | No | D-series 5-speed | Stock ECU OBD1 |
| D16Z6 | Civic Si (1992–1995) | EG, EK, CRX | No | D-series manual | OBD1 ECU plug-and-play |
| B16A2 | Civic Si (1999–2000) | EK, EG, DC2 | Yes (B-swap mounts) | B-series hydro | OBD2 to OBD1 jumper |
| B18A1 | Integra LS (1990–1993) | EF, EG, CRX | Yes (B-series mounts) | B-series cable | ECU conversion required |
| B20VTEC (Hybrid Build) | Custom Build | EG, EK, DC2 | Yes (B-swap mounts) | B-series hydro | Custom ECU tune |
| H22A4 | Prelude SH (1997–2001) | Accord, EG, EK | Yes (H2B mount kit) | H/F transmission | Custom wiring harness |
| H23A VTEC (Blue Top) | JDM Prelude | Accord, Civic EG/EK | Yes | H/F transmission | ECU conversion |
| F20A / F22B | Accord (1990–1997) | Accord CB/CD | No | F-series transmission | Plug-and-play |
| F20C / F22C1 | S2000 | RWD conversions | Yes (custom mounts) | 6-speed RWD | Standalone ECU required |
| K20A (JDM Type R) | Civic Type R (EP3, DC5) | EG, EK, DC2 | Yes (K-swap kit) | K-series 6-speed | Hondata KPro ECU |
| K20Z3 | Civic Si (2006–2011) | FG/FA, EG, EK | Yes | K-series 6-speed | ECU reflash or KPro |
| K24A1 | CR-V (2002–2006) | EG, EK, DC5 | Yes | K20 transmission | ECU rewire |
| K24A3 / K24A8 | Accord / TSX | EG, EK, DC2 | Yes | K20 transmission | ECU tune required |
| K24A4 + K20A2 Head (Frankenstein) | Hybrid Build | EG, EK, DC2 | Yes | K-series 6-speed | Custom ECU tuning |
| R20A | Civic / Accord (2006–2015) | FD, FB chassis | Yes | R-series 6-speed | Immobilizer bypass required |
| L15A / L15B | Fit / Jazz / Civic | GE, GK | Direct for Fit, custom for others | 5/6-speed | ECU reflash |
| J30A1 / J32A2 | Accord / Acura TL | Accord, EG custom | Yes (Hasport J-swap) | J-series 6-speed | Custom wiring harness |
| J35Z2 / J37A4 | Acura RL / TL | Accord, EG, EK (custom) | Yes | J-series 6-speed | Standalone ECU required |
| Z6 / Z7 (Insight Hybrid) | Honda Insight | Hybrid-only | Not practical | CVT | Not swap-compatible |
| B16A3 (Del Sol VTEC) | Civic Del Sol | EG, EK | Yes (B-swap kit) | B-series hydro | Plug-and-play |
| B18C-R (JDM Type R) | Integra Type R (DC2) | EG, EK, DC2 | Yes | B-series 5/6-speed | OBD2 ECU |
| B18C-GSR | Integra GSR | EG, EK, DC2 | Yes | B-series hydro | OBD1 ECU conversion |
| F23A1 / F23A4 | Accord (1998–2002) | Accord, Prelude | No | F-series transmission | Plug-and-play |
| H23A Non-VTEC | Prelude (1992–1996) | Accord CB/CD | No | H/F transmission | Stock ECU |
| K20B (CRV 2.0) | CR-V (2007–2011) | EG, EK | Yes | K-series 6-speed | Custom harness |
| K20C4 (Civic Si 2022+) | Civic Si | FC1, FK8 | Yes | K-series 6-speed | Standalone ECU required |
| K24W7 (Accord Earth Dreams) | Accord (2013–2017) | Modern chassis only | Yes | CVT / 6-speed | Full ECU integration |
| R16A / R18Z4 | Civic (2012–2016) | FB/FG | Yes | R-series manual | ECU swap required |
| L13A (Fit 1.3L) | Honda Fit | GE | No | 5-speed | Plug-and-play |
| J37A2 (TL SH-AWD) | Acura TL | Accord, custom Civic | Yes (V6 mount kit) | J-series 6-speed | Standalone ECU |
| D17A6 (Civic 2005) | Civic EM2 | EM2 | No | D-series 5-speed | OBD2 ECU |
| K20A3 + K24A2 Hybrid | Custom Hybrid Build | EG, EK, DC2 | Yes | K-series 6-speed | Custom ECU tune |
| B16B (EK9 Type R) | Civic Type R (EK9) | EK, EG | Yes | B-series hydro | OBD2 ECU |
| B21A1 | Prelude (1990–1991) | Accord CB | No | H/F transmission | OBD0 ECU |
| F18B / F20B3 | Accord (1994–2002) | Accord CB/CD | No | F-series manual | Plug-and-play |
| L15B7 Turbo (Civic 1.5T) | Civic (2016+) | FK7, FK8 | Yes | 6-speed / CVT | ECU + CAN integration |
| K20C2 (Base Civic 2.0L) | Civic (2016–2021) | FC, FK | Yes | K-series 6-speed | ECU flash |
| J35Y1 | Pilot / Accord | Custom chassis | Yes | J-series 6-speed | Standalone ECU |
| B20A (Prelude) | Prelude (1988–1991) | Accord CB | Yes | B-series cable | Custom wiring |
| K23A1 (Acura RDX Turbo) | Acura RDX | EG, EK, custom | Yes (custom mounts) | K-series AWD or FWD | Standalone ECU |
| L13B (Honda Fit Hybrid) | Fit Hybrid | GK | Direct fit | CVT | ECU locked |
| H22A7 (Euro R) | Accord Euro R | Accord, EG, EK | Yes (H2B kit) | H/F transmission | ECU conversion required |
| K24A2 (Acura TSX) | Acura TSX (2004–2008) | EG, EK, DC2 | Yes | K20 transmission | Hondata KPro ECU |
| F23B (SOHC VTEC) | Accord / Odyssey | Accord | No | F-series transmission | Plug-and-play |
| B20B4 (CR-V 1999) | Honda CR-V | EG, EK, DC2 | Yes | B-series hydro | ECU rewire required |
| D16A6 | Civic Si (1988–1991) | EF, CRX | No | D-series 5-speed | Plug-and-play |
| ZC (SOHC) | JDM Civic | EF, EG | No | D-series 5-speed | Plug-and-play |
| K24Z7 (Civic Si 2013–2015) | Civic Si | FG4 | Yes | K-series 6-speed | ECU flash / KPro |
Related Ford Engine Swap Chart(For All Engines Types)
Most Popular Honda Engine Swaps
1. D to B-Series Swap
One of the most common upgrades for older Civics. Swapping from a D-series (D16Y8) to a B16A or B18C gives instant power gains, stronger transmissions, and better aftermarket support. Requires B-series mounts, axles, and ECU conversion.
2. H22A into Civic
A favorite among enthusiasts seeking torque. The H22A (2.2L VTEC from the Prelude) offers over 190 hp stock. Needs an H2B adapter plate or custom mounts, but delivers strong mid-range and high-end performance.
3. K20/K24 into Civic or Integra
Modern performance and reliability — the K-series swap is now the gold standard. With a K24A2 or K20A2, expect 200–220 hp naturally aspirated. You’ll need a K-swap mount kit, K-series transmission, and Hondata KPro ECU.
4. B20/VTEC Hybrid
Combines a B20 bottom end (2.0L) with a B16/B18 VTEC head — nicknamed the “Frankenstein build.” Offers excellent torque and high-revving VTEC performance when tuned properly.
5. F/H-Series in Accord
Accord owners often swap between F22, F23, and H22 engines for better VTEC power while retaining near plug-and-play compatibility.
Related Chevy Engine Swap Compatibility Chart(For All Engine Types)
Key Components for a Successful Honda Engine Swap
When planning a swap, ensure you have all supporting parts ready. Missing components can quickly turn a weekend project into months of troubleshooting.
- Mount Kit: Ensures engine alignment and fitment (brands like Hasport or Innovative Mounts are popular).
- ECU and Harness: Use compatible or tuned ECUs; conversions (OBD0 to OBD1/2) are often required.
- Axles and Hubs: Use appropriate driveshafts for the swapped engine/transmission.
- Fuel and Cooling: Larger injectors, upgraded radiator, and performance fuel pump may be needed.
- Transmission: Match gear ratios to your goals — short gears for racing, long gears for cruising.
- Exhaust and Intake: Fabrication may be required to align manifolds and downpipes.
Related Honda Recommended Oil(Choose the Right Oil)
Tips Before Doing a Honda Engine Swap
- Set a Goal: Decide whether you want power, efficiency, or reliability.
- Plan the Budget: Include wiring, tuning, mounts, and registration costs.
- Check Local Laws: Some regions require emissions compliance for engine swaps.
- Tune After Swap: A proper ECU tune ensures power, efficiency, and reliability.
- Document Everything: Keep records for future maintenance and resale value.
Final words
Honda’s modular engine design has made it easier than ever to swap motors across different models and generations. From the budget-friendly D-to-B conversion to the modern K-series power swaps, the possibilities are nearly endless.
This Honda Engine Swap Chart should help you plan your next project with clarity, whether it’s a track-ready EK hatch, a sleeper Accord, or a fully built K24 Civic. With the right preparation, wiring, and tuning, you can unlock the full potential of Honda’s legendary VTEC technology and experience performance that’s both thrilling and dependable.
