Honda Engine Specs


	Engine	JDM B16A G1 (USA B16A3)	JDM B16A G2	JDM B16A G3	JDM B16B 98 spec.R	USA B17A	USA B18C	USA B18C spec.R	JDM B18C 96 spec.R
Type	Water-cooled 4 stroke	Same	Same	Same	Same	Same	Same	Same
Cylinder Arrangement	Inline 4 cylinder, transverse	Same	Same	Same	Same	Same	Same	Same
Block Height **	263 mm (10.354")	Same	Same	Same	Same?!	270 mm (10.630")	Same	Same
Bore x Stroke	81.0 x 77.4 mm (3.19 x 3.05 in)	Same	Same	Same	81.0 x 81.4 mm (3.19 x 3.20 in)	81.0 x 87.2 mm (3.19 x 3.43 in)	Same	Same
Displacement	1595 cc (97.3 cid)	Same	Same	Same	1678 cc (102.4 cid)	1797 cc (109.6 cid)	Same	Same
Compression Ratio	10.2	10.4	10.4	10.8	9.7	10.0	10.6	11.1
Valve Train	Belt driven, DOHC w/VTEC, 16 valves	Same	Same	Same	Same	Same	Same	Same
Maxinum Output	160 ps @ 7600 rpm	170 ps @ 7800 rpm	170 ps @ 7800 rpm	185 ps @ 8200 rpm	160 hp @ 7600 rpm	170 hp @ 7600 rpm	195 hp @ 8000 rpm	200 ps @ 8000 rpm
Maxinum Torque	111 lbs-ft @ 7000 rpm (15.5 kgm @ 7000)	16.0 kgm @ 7300 rpm	16.0 @ 7300 rpm	16.3 kgm @ 7500 rpm	117 lbs-ft @ 7000 rpm	128 lbs-ft @ 6200 rpm	130 lbs-ft @ 7500 rpm	18.5 kgm @ 7500 rpm
Specific Output (output/liter)	100 ps/liter	106.3 ps/liter	106.3 ps/liter	115.6 ps/liter	94.1 hp/liter	94.4 hp/liter	108.3 hp/liter	111.1 ps/liter
Engine	JDM B16A G1 (USA B16A3)	JDM B16A G2	JDM B16A G3	JDM B16B 98 spec.R	USA B17A	USA B18C	USA B18C spec.R	JDM B18C 96 spec.R
Intake/Exhaust Valve Size	33.0 mm/28 mm	Same	Same	Same	Same	Same	Same	Same
Intake opening (BTDC)	10	15	15	18	10	10	15	15
Intake closing (ABDC)	40	45	45	45	40	40	45	45
Intake duration	230	240	240	243	230	230	240	240
Exhaust opening (BBDC)	40	40	40	45	40	40	45	45
Exhaust closing (ATDC)	7	7	7	10	7	7	10	10
Exhaust duration	227	227	227	235	227	227	235	235
Overlap	17	22	22	28	17	17	25	25
Intake valve lift (mm)	10.6 (.417")	10.7 (.421")	10.7 (.421")	11.5 (.453")	10.6 (.417")	10.6 (.417")	11.5 (.453")	11.5 (.453")
Exhaust valve lift (mm)	9.4 (.370")	9.4 (.370")	9.4 (.370")	10.5 (.413")	9.4 (.370")	9.4 (.370")	10.5 (.413")	10.5 (.413")
Intake/Exhaust Valve Springs	Dual/Single	Dual/Single	Dual/Single	Dual/Dual	Dual/Single	Dual/Single	Dual/Dual	Dual/Dual
Connecting rod bearing width	19.5 mm	19.5 mm	19.5 mm	tetra-methyl lead coated crank 17.5 mm		tetra-methyl lead coated crank 17.5 mm	tetra-methyl lead coated crank 17.5 mm	tetra-methyl lead coated crank 17.5 mm
Connecting rod	chrome carbon steel	chrome carbon steel	chrome carbon steel	high chrome carbon steel	chrome carbon steel	high chrome carbon steel	high chrome carbon steel	high chrome carbon steel
Piston				Molybdenum coated low friction			Molybdenum coated low friction	Molybdenum coated low friction
Intake (VTEC lobe) open close valve lift diameter	10° before TDC 40° after BDC 10.6 mm 33 mm	10° before TDC 40° after BDC 10.6 mm 33 mm	10° before TDC 40° after BDC 10.6 mm 33 mm	18° before TDC 45° after BDC 11.5 mm 33 mm		10° before TDC 40° after BDC 10.6 mm 33 mm	15° before TDC 45° after BDC 11.5 mm 33 mm	15° before TDC 45° after BDC 11.5 mm 33 mm
Exhaust (VTEC lobe) open close valve lift diameter	45° before BDC 10° after TDC 10.5 mm 28 mm	40° before BDC 7° after TDC 9.4 mm 28 mm	40° before BDC 7° after TDC 9.4 mm 28 mm	45° before BDC 10° after TDC 10.5 mm 28 mm		40° before BDC 7° after TDC 9.4 mm 28 mm	45° before BDC 10° after TDC 10.5 mm 28 mm	45° before BDC 10° after TDC 10.5 mm 28 mm
Weight (kg)	1040	1090	1120	1050		1130	1060	1060
Transmission	Y1 (LSD opt)	Y2 (LSD opt)	Y2	Y2 (Torsen LSD)		Y80	Y2 (Torsen LSD)	Y2 (Torsen LSD)
1st	3.166	3.307	3.230	3.230		3.230	3.230	3.230
2nd	2.052	2.105	2.105	2.105		1.900	2.105	2.105
3rd	1.416	1.458	1.458	1.458		1.360	1.458	1.458
4th	1.103	1.107	1.107	1.107		1.034	1.107	1.107
5th	0.870	0.848	0.848	0.848		0.787	0.848	0.848
R	3.000	3.000	3.000	3.000		3.000	3.000	3.000
Final Drive	4.266	4.40	4.40	4.40		4.40	4.40	4.40

* All cam timing figures are the high rpm lobe. All figures from Honda, which are based on 1 mm (.0394") lift at valve
** Block height measured with steel ruler from deck to bottom of oil pan rail.
*** It seems that the above engines do not all have the same rocker arm ratio! That means the same cam will have different lift at valve depending on which rocker arm is used.

People always ask if parts are interchangeable between the above motors. The answer is yes on most parts (valves, valve springs, cams, rocker arm, crank, head). There are only few exceptions like all intake manifolds are interchangeable except B18C. The tranny's for the above motors will also bolt up to each other. But newer ones are hydralically operated while the older ones are cable.

Type-R Parts' Name	USA B18C Type-R Part Numbers	JDM B18C 96 spec.R Part Numbers	JDM B16B
Intake camshaft	14111-P73-J00	Same	14111-PCT-000
Exhaust camshaft	14121-P73-J00	Same	Same
Intake valve	14700-P73-J01	14711-P73-J01	?
Inner intake valve springs	14751-P73-J01	Same	?
Outer intake valve springs	14761-P73-J01	Same	?
lost motion assemblies	14820-P73-J01	Same	?
Intake manifold	17100-P73-00	Same	?

Too many people are getting fleeced by less than honest wrecking yards these days. So please if you are planning on doing a B16A swap write this down!!!

All '88-91 Civic/CRXs and '90-3 Integras will accept a first gen B16A (10.2:1CR / 160Hp)
from a JDM CRX/Civic SiR or Integra XSi/RSi (EF8/9 & DA6/8)

A first gen B16A's valve cover has "DOHC" written in a larger font than "VTEC".
Depending on whether it originally came out of a Civic/CRX SiR or Integra XSi/RSi it will have a cable clutch tranny identified as either YS1, Y1, S1, or J1.
The proper ecu for this swap has either 'PR3' or 'PW0' in its serial number (located on one of the sides of the ECU housing, underneath the bar code sticker).
All '92+ Civic/DelSols will accept a second gen B16A (10.4:1CR / 170Hp)
from a JDM DelSol/Civic SiR/SiRII (EG2/6/9 & EK4).
A second gen B16A's valve cover has "VTEC" written in a larger font than "DOHC".
It will come with a hydraulic tranny, most of them are identified as a Y2 or Y21.

From Helms Manual: B18C1 engine specifications

	Measurement			Standard (New) mm (in)
Compression	250 rpm and wide open throttle	Nominal Maximum Maximum variation		kPa (kgf/cm², psi)	1,860 (19.0, 270) 930 (9.5, 140) 200 (2.0, 2.8)
Cylinder head	Warpage Height			14.95 -142.05 (5.589-5.593)
Camshaft	End play Camshaft-to-holder oil clearance Total runout Cam lobe height:	IN Primary Mid Secondary EX Primary Mid Secondary		0.05 - 0.015 (0.002-0.006) 0.050 - 0.089 (0.0020 - 0.0035) 0.015 (0.0006) max. 33.411 (1.3154) 36.377 (1.4322) 34.547 (1.3601) 33.111 (1.3036) 35.720 (1.4063) 34.381 (1.3536)
Valve	Valve Clearance (Cold)* *: Measurement between the camshaft and rocker arm Valve stem O.D. Stem-to-guide clearance		IN EX IN EX IN EX	0.15 - 0.19 (0.006 - 0.007) 0.17 - 0.21 (0.007 - 0.008) 5.475 - 5.485 (0.2156 - 0.2159) 5.450 - 5.460 (0.2146 - 0.2150) 0.025 - 0.055 (0.0010 - 0.0022) 0.050 - 0.080 (0.0020 - 0.0031)
Cylinder Block	Bore diameter			81.00 - 81.02 (3.189 - 3.190)
Engine Oil	Capacity Liters (US qt, Imp qt)			4.8 (5.1, 4.2) for engine overall 4.0 (4.2, 3.5) for oil change, including filter 3.7 (3.9, 3.3) for oil change, without filter
Fuel Pump	Displacement in 12 V, 10 seconds			kPa (kgf/cm², psi)	364 (12.3,12.8) min
Transmission oil	Capacity (US qt, Imp qt)			2.2 (2.3,1.9) for oil change 2.3 (2.4,2.0) for assembly
Spark Plug	Stock plug: NGK PFR6G-13 My favorite plug: NGK BKR7E			Electrode Gap: 1.3 mm (0.051 in)
Ignition timing	At idling ^oBTDC (Red) - rpm			16^o + 2^o -750 + 50

Honda Engines

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