Honda/Acura Engine Swap Guide

Target Car	Source Engine	Remarks
88-91 Honda Civic 88-91 Honda CRX	ZC D16A8 (ZC) D16A9 (ZC)	Direct bolt-in swap, only the engine is required.
	B16A 88-91 B18A 90-91	Requires engine, trans, ecu, half shaft, Axles, shift linkage and Motor Mount Kit.
	B16A 92-95 B18C 93-95 B18B 93-95	Requires engine, B series cable trans, ecu, OBD0 to OBD1 wiring jumper harness, half shaft, axles, shift linkage and Motor Mount Kit.
	B18C-R 96-01 B16B-R 96-01	Requires engine, B series cable trans, ecu, OBD0 to OBD2 wiring jumper harness, half shaft, axles, shift linkage and Motor Mount Kit..
90-91 Acura Integra	B18C 93-95 B16A 92-95	Requires engine, ecu and OBD0 to OBD1 wiring jumper.
	B18C-R 96-01 B16B-R 96-01	Requires engine, ECU and OBD0 to OBD2 wiring jumper harness.
	B16A 88-91	Requires engine and ECU only.

Target Car	Source Engine	Remarks
92-95 Honda Civic 92-95 Honda Del Sol 92-95 Acura Integra	B18C 93-95 B16A 92-95 B18B 93-95	Requires engine, trans, ecu, axles, half shaft and shift linkage.
	B16A 88-91	Not recommended, easier and cheaper to put B16A 92-95.
	B18C-R 96-01 B16B-R 96-01	Requires engine, trans, ecu, OBD2 to OBD1 wiring jumper harness, axles, half shaft and shift linkage.
	H22A 92-96	Requires engine, trans, ECU, shift linkage, 94+ Integra axles, Motor Mount kit and 94+ Integra GS-R wiring harness.
96-97 Honda Del Sol 96-01 Acura Integra	B16B 96-01 B18C 96-01	Requires engine, trans, ECU, axles, half shaft and shift linkage.
96-97 Honda Del Sol 96-01 Acura Integra	H22A 92-96	Requires engine, trans, ECU, OBD2 to OBD1 wiring jumper harness, shift linkage, 94+ Integra axles, Motor Mount kit and 94+ Integra GS-R wiring harness.

5G Wiring Information

B16A2 in EG Honda Civic

There are 6 circuits to verify:

B18C1 in EG Honda Civic

There are 7 circuits to verify:

ECU Pinouts

EG series Honda Civic (5G, 92-95) and DC series Acura Integra (3G, 94+)

96-00 Honda Civic Engine Swap Matrix

Target Car	Source Engine	Remarks
96-97 Honda Civic	B18C 93-95 B16A 92-95 B18B 93-95	Requires engine, trans, ECU, OBD2 to OBD1 wiring jumper harness, axles, half shaft, shift linkage and 99-00 Civic SI rear engine mount.
	B16A 88-91	Not recommended, cheaper and easier to put 92-95 or 96-00 B16A engine.
	B18C-R 96-97 B16B-R 96-01	Requires engine, trans, ECU, axles, half shaft, shift linkage and 99-00 Civic SI rear engine mount.
98-00 Honda Civic Si	B16A 92-95 B18C 93-95 B18B 93-95	Requires engine, trans, ECU, OBD2 to OBD1 wiring jumper harness, axles, half shaft, shift linkage and 99-00 Civic SI rear engine mount.
98-00 Honda Civic Si	B18C-R 98-01 B16B-R 96-01 B18B 98-01	Requires engine, trans, ECU, axles, half shaft, shift linkage and 99-00 Civic SI rear engine mount.

01+ Honda Civic to 01+ Acura RSX Engine Swap

Target Car	Source Engine	Remarks
2002 Honda Civic SI	K20A2/K20A3 K20A-R (JDM)	Requires engine and ECU.
2001 Honda Civic DX/LX/EX	K20A2/K20A3 K20A-R (JDM)	Requires engine, trans, ECU, axles, engine mounts and shift linkage.

92-96 Honda Prelude to 90-97 Honda Accord Engine Swap

Target Car	Source Engine	Remarks
92-96 Honda Prelude 90-97 Honda Accord	H22A 92-96	Requires engine and ECU.
	F20B VTEC 97-01 H22A-S 97-01 H22A 97-01	Requires engine, ECU and OBD1 to OBD2 wiring jumper harness.

97-01 Honda Prelude Engine Swap

Target Car	Source Engine	Remarks
97-01 Honda Prelude 98-01 Honda Accord(4cyl.)	H22A 92-96*	Requires engine, ECU and OBD2 to OBD1 wiring jumper harness.
	F20B 97-01 H22A-S 97-01 H22A 97-01	Requires engine and ECU.

*Will not work with ATTS models

Target Car