B20A

B21A1

Configuration

I4

Aspiration

Normally Aspirated

OBD

OBD0

Notes

Market: USDM | Head casting: PK3

Swaps using the B21A1

Guides mentioning the B21A1

Difficult 1-2 days

Civic Type R 5-Lug Brake and Suspension Conversion for the 1996-2000 Civic (EK)

Easy 15-30 minutes

Honda PGM-FI Fault Code Reading and ECU Reset (OBD0/OBD1/OBD2)