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[Datsun 1200 encyclopedia]

Nissan Z Engine

From Datsun 1200 Club

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Category: Nissan Engines

Z18ET turbo, Z20, Z22, Z24 -- these crossflow-headed engines are based on the L-series. All install into a 1200 more or less the same way (see Z-series Engine Swap).
IMG_1272.jpg

Contents

Overview

The Z-series engine replaced the L-series engine. Some Z-engine packages were called "NAPS-Z", and these were Z-engines with Nissan Anti-Pollution System (NAPS). In the USA where emissions were most important, the NAPS-Z twin-plug versions (or single plug with Catalytic Converter) completely replaced the L-series engines. In turn, the Z was replaced by NAPS-X engines.

Z-engine block
5629.jpgAlbum click to view

Z20 NAPS-Z engine in Datsun 1200
79.JPGAlbum click to view

Supercharged NAPS-Z engine
825.jpgAlbum click to view

NAPS-Z engine in 510
18173.jpgAlbum click to view

Turbocharged Z-series engine
829.jpgAlbum click to view

Z24 in Datsun 1200
24559.jpgAlbum click to view 24560.jpgAlbum click to view 24555.jpgAlbum click to view

Z18 Turbo

Turbo Power! right from the factory.

Main: Z18ET

43.jpgAlbum click to view

The nice thing about the Z18ET is its a factory setup, legal in most Australia states for a 1200. The downside is how available is it, including the wiring harness?

Sources

Z-series was a common engine in the larger Datsuns, as it replaced the L-series engine starting in 1979 in many markets.

Australia

910 Bluebird#910 (Japan import) Z18ET (Z18T)
720 Z20
D21 Navara Z20
Urvan Z20
Vanette Z20

Z18ET came in Japan-import cars. Australia models didn't have Z-turbo engines.

Bluebird Series I Z18ET (Japan-spec)
7097.jpgAlbum click to view 7098.jpgAlbum click to view

Japan

Z16S
Z18E/Z18S/Z18T
Z20D/Z20S/Z20E
Z22S
VEHICLE APPLICATION
A10	Z16E/Z16S/Z18E/Z18S
720	Z16S/Z18S
910	Z16S/Z18S/Z18E/Z18T/Z18P/Z20S/Z20E
C120 	Z20S
C210 	Z18S/Z18E
C230 	Z20S
C231 	Z18S
C31 	Z18P/Z18S/Z20S 
D21 	Z16S/Z18S/Z20S
E23 	Z18S/Z20S
E24 	Z20S
F22 	Z16S/Z20S
F30 	Z18S
H40 	Z20D (LPG/Dual), Z20S (Nissan Atlas/UD Condor)
R30 	Z18S/Z20E
S110 	Z18E/Z18S/Z18T/Z20E
TC22 	Z20S
W40 	Z22S
WE24 	Z20S
8-plug (twin-plug head)
A10    Z16/Z18
E24	Z20
WE24	Z20S
910	Z16S/Z18S/Z18P/Z18E/Z18ET/Z20S/Z20E
C120	Z20
C31	Z18S/Z18P/Z20S
E23	Z20
F30	Z18S
R30	Z18S/Z20E
S110	Z18S/Z18E/Z18ET/Z20E
4-plug (single-plug head)
720	Z16/Z18
D21	Z16S/Z18S/Z20S
TC22	Z20S
W40	Z22S
910	Z16S
E23	Z18/Z20
E24	Z20
F22	Z16/Z20
H40	Z20D/Z20S
R30	Z18S

North America

Z20S/Z20E
Z22S/Z22E
Z24S/Z24E/Z24I
S = single carburetor
E = multi-point injection
I = throttle body injection
VEHICLE APPLICATION
A10	Z20S
720	Z20S/Z22S/Z24S/Z24I
D21	Z24S
WD21	Z24I
GC22	Z24I
S110	Z20E/Z22E
4-PLUG (SINGLE-PLUG HEAD)
S110 Z20E FED (CAL used 8-plug)
A10 Z20S FED 1980
720 0179-1285
* L20B 1980 model year (0679-)
* Z22E 1981-1984
* Z20E 1983-1986 (0183-)
* Z24 1983-1986 (1182-)
* VG30 1986
S110 0179-0783 "200SX"
* Z20E -0681
* Z22E 0781-
A10 0177- "510"
* L20B 1978-1979 model years (from 1177-) 
* Z20S 4-plug FED.-0680 uses 22162-U6001 DISTRIBUTOR CAP (1980 only)
* Z20S 8-plug uses 22162-W0561/22162-W0562 DISTRIBUTOR CAP

Engine Swaps

See Main Article: Z-series Engine Swap

Heads North America

11041 HEAD ASSY-CYLINDER
720
 11041-04W80 L20B 0679-0680 <> 11041-W0381
 11041-07W80 Z22 0679-0681
 11041-07W03 Z22 0781-1282
 11041-10w00 Z24
 11041-W7080 Z20 -0784
 11041-W0481 Z20 0784-
S110
 11041-N8580 Z20E 0179-0780 FED
 11041-N8780 Z20E 0179-0780 CAL
 11041-N8561 Z20E 0880-0681
 11041-07W03 Z22E 0781-0783
A10
 11041-N8580 Z20S(FED) -0680
 11041-N8780 Z20S(CAL) -0680
 11041-N8580 Z20S 0780-

Head Gasket

11044 GASKET-CYLINDER HEAD
11044-W0400 Z20 (-0880) <> 11044-W0402 (0980-0681)
11044-W4000 720.Z20 <> 11044-W4001 <> 11044-W4002 0784-
11044-06W00 Z22 <?> 11044-06W01/11044-06W02
11044-06W03 Z22 (720.0582-, S110.0482) <> 11044-06W04 (0782-) <> 11044-06W05
11044-10W01 Z24 (-0983) <> 11044-10W02 (1083-)

Valve Cover Gasket

13270 GASKET-ROCKER COVER
13270-G2500 720.Z20/Z24,D21.Z24
for steel cover
79.JPGAlbum click to view
RockAuto $5
* ROL VS936 rubber
* DNJ VC602 rubber
* FelPro VS50246R or VS50354R rubber
* Victor Reinz VS38371 rubber
13270-W0401 S110.Z20E, A10 .Z20S, Z22 <> 13270-17C10 REINZ
for alloy cover
* Payen JM086 $6 at RockAuto
* Felpro VS50196C cork at RockAuto
* Victor Reinz VS20344 rubber
13272M LABEL-ROCKER COVER 720.1184-

Camshaft

13001 CAMSHAFT ASSY
13001-W0480 Z20/Z22/Z24 S110/A10/720/D21 <> 13001-W0483
13001-W0402 720.Z20 <> 13001-W0483
13001-17C80 All Models from 11/85 Z24I/Z20/Z24 D21/WD21/CG22
Z20/Z22/Z24 720/D21/WD21/GC22 SEALED POWER CS755 
* Hydraulic
* (050) Duration at .050 Lobe Lift: 227 Exh. 227 Int.

Head Types

11041-N8561 
 * NORTH AMERICA late Z20S/Z20E
 13201-N8501 VALVE-INTAKE late Z20 [42x8x124.4 mm]
 13202-N8500 VALVE-EXHAUST [38x8x125.4 mm]
 14035-W7061 GASKET-INTAKE MANIFOLD
 14036-W7060 GASKET-EXHAUST MANIFOLD
11041-N8580 Z20S 4-plug
* USA FED -0680 
 13201-N8500 VALVE-INTAKE early Z20
 13202-N8500 VALVE-EXHAUST Z20
 14035-W8800 GASKET-INTAKE MANIFOLD WITH BLADE FED [3-piece]
 * <?> 14035-W8805 <?> 14035-W8810 <?> 14035-W8815
 14036-W0401 GASKET-EXHAUST MANIFOLD
11041-N8780 Z20S 8-plug
* CALIFORNIA -0680
 13201-N8500 VALVE-INTAKE early Z20
 13202-N8500 VALVE-EXHAUST Z20
 14035-W7061 GASKET-INTAKE MANIFOLD CAL [1-piece]
 14036-W0401 GASKET-EXHAUST MANIFOLD [2-piece]
11041-07W03 
* S110 USA Z22E 0781-0783
* 720 USA Z22 0781-1282
 11044-06W05 GASKET-CYLINDER HEAD
 13270-W0401 GASKET-ROCKER COVER
 13001-W0480 CAMSHAFT ASSY <> 13001-W0483
 13201-N8501 VALVE-INTAKE
 13202-N8500 VALVE-EXHAUST
 14035-W1500 GASKET-INTAKE MANIFOLD
 14036-W7060 GASKET-EXHAUST MANIFOLD
11041-22G00 <> 11041-07G00 HAW/SAI FOR HIGH LEAD FUEL 
11041-10W00
* GC22 USA Z24I
* D21 USA 1185-0889 Z24I
* WD21 USA 0786-0889 Z24I
* 720 USA 1182- Z24
 11044-10W02 GASKET-CYLINDER HEAD
 13270-17C10 GASKET-ROCKER COVER
 13001-17C80 CAMSHAFT ASSY
 13201-N8501 VALVE-INTAKE
 13202-N8500 VALVE-EXHAUST
 14035-23G00 GASKET-INTAKE MANIFOLD
 14036-W7060 GASKET-EXHAUST MANIFOLD
11041-T8301 HEAD ASSY-CYLINDER (8208-8606) <> 11041-T8303 (8605-8805)
 * JAPAN W40 8208-9902 "シビリアン" (Civilian bus) Z22S 8208-8805
 * EUROPE 720.Z22
 * WORLDWIDE RHD 720.Z22
 * WORLDWIDE LHD 720.Z22
 11044-06W05 GASKET-CYLINDER HEAD <> 11044-06W04
 13270-G2500 GASKET-ROCKER COVER
 11056-H2301 BOLT-CYLINDER HEAD -8707 > 11056-H1000/11056-H1010 (8707-) 
 13001-W0480 CAMSHAFT ASSY <> 13001-W0483
 13201-N8501 VALVE-INTAKE
 13202-N8500 VALVE-EXHAUST
 14035-07N00 GASKET-INTAKE MANIFOLD
 14036-W0401 GASKET-EXHAUST MANIFOLD
11044 GASKET-CYLINDER HEAD
11044-06W02/11044-06W03/11044-06W04/11044-06W05
* Z22

Gaskets

GASKET-INTAKE MANIFOLD
Z16/Z18S/Z18P/Z20/Z22
* 14035-W7061 <> 14035-W1500 <> 14035-07N00
Z24
* 14035-10W00 <> 14035-10W01 <> 14035-23G00

Head Bolts

Z-series engines use head bolts designed for the A-series engines. For more details on the specific bolts, see Head Bolts.

Since the Z24 has common head gasket problems, it is recommended to re-torque the head bolts every 2 years/24000 miles. The smaller engines need no retorque if equipped with '13' bolts. Unmarked bolts should be retorqued every 2 years.

'13' bolts are high-tensile Chromoly-V steel alloy
23377.jpgAlbum click to view

Z16/Z18/Z20/Z22 - Same as original A12
* 97 mm length
11056-H2301 BOLT-CYLINDER HEAD (10) 
* All North America
* JAPAN (some engines)
* 58 lb ft [original use: A12GX center bolt]
* Head marked '13'
11056-H1000/11056-H1010 BOLT-CYLINDER HEAD
* JAPAN (some engines)
* 43 lb ft [original use: A12 center bolt]
* Unmarked head
Z24 - Same as A14/A15 
* 111 mm length
11057-H5700 BOLT-CYLINDER HEAD (10)
* 58 lb ft [original use: A12T center bolt]
* Head marked '13'

Valves

13201 VALVE-INTAKE
13201-N8500/13201-N8501 Z20E/Z22/Z24/Z24I
13201-W0401/13201-Y8780 Z20 

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