R-series

R18A1

R18A1 (8th gen Civic)

Displacement
1.8L (1799cc)
Configuration
Inline-4
Power
140 hp (USDM)
Torque
128
Valvetrain
SOHC i-VTEC (economy)
Aspiration
Naturally aspirated
OBD
OBD2
Years
2006-2011

Factory Fitment

Civic DX/LX/EX (FA/FG)

Notes

Economy engine; relevant to maintenance guides rather than performance swaps.

Swaps using the R18A1