H-series
H23A
H23A DOHC (non-VTEC)
Displacement
2.3L (2259 cc)
Configuration
Inline-4
Power
160 hp (119 kW; 162 PS)
Torque
212 N⋅m
Compression
9.8:1
Bore × Stroke
87.0 mm x 95.0 mm
Valvetrain
DOHC 16-valve, non-VTEC
Aspiration
Naturally aspirated
Fuel System
PGM-FI
Redline
6500 rpm
Years
1991-1996
Factory Fitment
Prelude Si (USA/Australia); Prelude SE (USA); Prelude SR (Canada)
Notes
Non-VTEC DOHC 2.3, the torquey longer-stroke alternative to the higher-revving H22.
Swaps using the H23A
Guides mentioning the H23A
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)
Expert
6-10 hours (excluding paint and parts lead time)
Honda Fit (GE8) JDM 11-Pin Folding, Heated Door Mirror Retrofit
Difficult
6-10 hours
Honda Prelude (4th Gen) Projector Headlight Retrofit
Expert
2-3 weeks (vehicle off the road)
Honda H22 Complete Engine Build for Forced Induction (Turbo/Supercharger)
Difficult
4-6 hours
Honda Fit (GE8) LED Taillight and Rear Fog Light Retrofit
Difficult
3-4 hours
Honda Fit (GE8) HomeLink and Ambient Light Retrofit Using an Acura TSX Overhead Console
Moderate
4-6 hours (plus sealant cure time)
DIY Amber City Lights in Honda Headlight Housings
Difficult
3-5 hours
Diagnosing Dead ECT, CMP and Wideband O2 Signals After a K-Series Conversion Harness Swap