The 2.0-liter Honda A20A engine was installed in the Accord and Prelude of the 1980s. It existed in carburetor versions A20A1 and A20A2 and fuel-injected versions A20A3 and A20A4 with Honda PGM-FI.
Like the A18A, it has a single overhead camshaft driven by a belt and 12 valves. From 1988 the North American injected engines received a two-stage intake manifold and a 4-2-1 exhaust manifold, raising output to about 122 hp.
The A-series also includes: A18A.
A-series family: A18A, A20A.
Specifications
| Production years | 1984-1991 |
| Displacement, cc | 1955 |
| Fuel system | carburetor / injector |
| Power output, hp | 99 – 122 |
| Torque output, Nm | 139 – 166 |
| Cylinder bore, mm | 82.7 |
| Piston stroke, mm | 91 |
| Compression ratio | 8.8 – 9.4 |
| Features | SOHC 12v |
| Timing drive | belt |
| Turbocharging | no |
| Fuel type | petrol |
The engine was installed on:
- Honda Prelude 2 (AB) in 1984 – 1987;
- Honda Accord 3 (CA) in 1985 – 1989.
