With the ever increasing popularity of the JZ swap, I'm starting the FAQ to consolidate most of the info. If you have something to add feel free to post. Below are some of the categories to fill in to help potential swappers make a more informed decision of the correct motor for them.
Chassis Codes:
Chassis code key: chassis code / sump orientation(front or mid) / TT, T, NA / Fan type / stock rated horsepower if known / notes
example: JZX90 / front / TT / hydro|mech / 300 / JDM|USDM|etc / Years (any relevant notes)
1JZ:
JZA70 / mid / TT / hydro / 280 /JDM MK3 / ?
JZX81-B Chaser / front / TT / hydro / 280? / JDM / ?
[Need chassis code] Soarer / mid / TT / hydro / --- / JDM / ?
JZX81-A Mark II / front / TT? / hydro / --- / JDM / ?
JZX81-C Cresta / front / TT? / hydro / --- / JDM / ?
JZZ30 - Soarer / mid / TT / Mech / --- / JDM / 1991-1996
JZZ30 - Soarer / mid / T / Mech / --- / JDM / Aug 1996 on
2JZ:
JZA80 / mid / TT / mech / 320 / USDM Mk4 / 1993-1998
JZS1?? / front / TT / hydro? / 276 / JDM Aristo / 1991 - 1997 (R6 3 liter)
JZS1?? / front / NA / hydro? / 226 / JDM Aristo / 1991 - 1997 (3.0Q)
JZS147 / front / NA / mech? / --- / USDM Lexus GS300 / 1993+
JZS160 / front / NA / hydro? / --- / JDM Aristo / 1995 - 2005 (vvt-i?)
JZS161 / front / TT / hydro? / --- / JDM Aristo / 1995 - 2005 (+VVT-i
JZA80 / mid / TT / mech / 280? / JDM / ~1986 - ~1993
JZZ31 / mid / NA / hydro? / 225 / JDM / JDM Soarer / ?
JZZ31 / mid / NA / Mech? / 225 / USDM Lexus SC300 / ?
JZZ31 / mid/ NA / Mech? / 225 / USDM Lexus SC300 / 1998+ (+vvt-i)
Wiring Diagrams:
1JZ:
JZZ30 ECU pinout
2JZ:
Transmission, 1j or 2j:
1: Original W58: (not really recommended)
2: R154: 5 speed
3: Automatic:
Radiator:
1: Stock (possibly not sufficient)
2: MK3 radiator, with jza70 radiator hoses, mechanical or E-fan
3: JZA70 radiator, with jza70 radiator hoses, hydro fan
Water pump (1j or 2j):
To convert from hydro fan pump to standard pump:
Oil Pan:
To convert mid sump to front sump. You need: (Stock Twins)
*** IT is up to YOU to double check part numbers listed. Numbers listed are for 93-94 Lexus GS300
Modifying to big single (et al)
Fuel filter:
JZA70 1JZ for example, does not have a fuel filter at the engine. You have to adapt the 5M style fuel filter setup to the JZA70 fuel line system. Not very difficult.
Fuel pump:
Engine mounts:
1: Custom brackets, use original mounts
2: Custom crossmember, to use original JZ mounts (norbie style)
Wiring/ECU:
(automatic ecu/harness will work fine)
1: Supra JZA70 harness (extend harness, and follow 7M style conversion diagrams)
2: Soarer 1JZ harness (extend harness, use wire diagrams to find appropriate power sources)
3: Aristo 2JZ harness (study US 2jz diagrams, good luck)
Power Steering:
Use JZ compressor, convert to MA70 A/C head unit ( the top piece ). This will allow you to use stock MK2 A/C Button. Custom lines, similar to 7M/MK2 swap after that.
If deleting the AC:
Alternators (Generally 100 amp)
Direct fit: (MKII Alt connector is on the body/fender harness not the engine harness)
1992 SC300 5-speed alternators (Autozone - Duralast alt. P/N 14459)
The JZS147 Aristo
Note: Upgrade your Alt wires to 4 guage.
TACH:
Make your own
Similar to 7MGTE Swap
Use any 2JZGTE/1JZGTE Igniter (if not supplied with engine)
OEM Gasket Sets
1JZGTE full engine gasket kit - # 04111-46033
Reference Websites:
1JZ.com
Arnout's 1JZ Swap Page (MKIII but good info for JZA70)
Soarer Parts List
Soarer Central
Aristo Forums(JZS147)
http://www.jzx81.net/models.html <--- Dead Link
http://www.jzx81.net<--- Dead Link
If you have other categories to add post them and I'll add to this post. Anything that has a "???" in it either needs confirmation or the information. If you have this info, please post.
A big thanks to everyone who has posted. This 1st post is a condensed 'soup' version of the comments and knowledge posted by many of our great members, some subjects are explored in greater detail in pages to follow.
Updated to page [12]
=====>The MKII needs a front oil sump<=====
Chassis Codes:
Chassis code key: chassis code / sump orientation(front or mid) / TT, T, NA / Fan type / stock rated horsepower if known / notes
example: JZX90 / front / TT / hydro|mech / 300 / JDM|USDM|etc / Years (any relevant notes)
1JZ:
JZA70 / mid / TT / hydro / 280 /JDM MK3 / ?
JZX81-B Chaser / front / TT / hydro / 280? / JDM / ?
[Need chassis code] Soarer / mid / TT / hydro / --- / JDM / ?
JZX81-A Mark II / front / TT? / hydro / --- / JDM / ?
JZX81-C Cresta / front / TT? / hydro / --- / JDM / ?
JZZ30 - Soarer / mid / TT / Mech / --- / JDM / 1991-1996
JZZ30 - Soarer / mid / T / Mech / --- / JDM / Aug 1996 on
2JZ:
JZA80 / mid / TT / mech / 320 / USDM Mk4 / 1993-1998
JZS1?? / front / TT / hydro? / 276 / JDM Aristo / 1991 - 1997 (R6 3 liter)
JZS1?? / front / NA / hydro? / 226 / JDM Aristo / 1991 - 1997 (3.0Q)
JZS147 / front / NA / mech? / --- / USDM Lexus GS300 / 1993+
JZS160 / front / NA / hydro? / --- / JDM Aristo / 1995 - 2005 (vvt-i?)
JZS161 / front / TT / hydro? / --- / JDM Aristo / 1995 - 2005 (+VVT-i
JZA80 / mid / TT / mech / 280? / JDM / ~1986 - ~1993
JZZ31 / mid / NA / hydro? / 225 / JDM / JDM Soarer / ?
JZZ31 / mid / NA / Mech? / 225 / USDM Lexus SC300 / ?
JZZ31 / mid/ NA / Mech? / 225 / USDM Lexus SC300 / 1998+ (+vvt-i)
Wiring Diagrams:
1JZ:
JZZ30 ECU pinout
2JZ:
Transmission, 1j or 2j:
1: Original W58: (not really recommended)
NA USDM MK4 5 speed bellhousing
2JZGE flywheel
Stock or upgraded MKII clutch
2JZGE flywheel
Stock or upgraded MKII clutch
2: R154: 5 speed
JZA70 bellhousing
1JZGTE flywheel
7M stock or upgraded MKIII clutch
Automatic MKII trans mount
1JZGTE flywheel
7M stock or upgraded MKIII clutch
Automatic MKII trans mount
3: Automatic:
Torque converter for JZ block. (1JZ or 2JZ)
JZ Bell housing (1JZ or 2JZ) See below
JZ Bell housing (1JZ or 2JZ) See below
USDM Vehicles:
A340E
1993-1995 Lexus GS300 3.0L I6
1992-1998 Lexus SC300 3.0L I6
1992-1998 MkIV NA Supra
A341E:
1993-1998 Toyota Supra turbo
A350E (5 speed AUTO):
1995+ GS300
A340E
1993-1995 Lexus GS300 3.0L I6
1992-1998 Lexus SC300 3.0L I6
1992-1998 MkIV NA Supra
A341E:
1993-1998 Toyota Supra turbo
A350E (5 speed AUTO):
1995+ GS300
Radiator:
1: Stock (possibly not sufficient)
2: MK3 radiator, with jza70 radiator hoses, mechanical or E-fan
3: JZA70 radiator, with jza70 radiator hoses, hydro fan
Water pump (1j or 2j):
To convert from hydro fan pump to standard pump:
Supra MKIV TT water pump.
Water pump housing (rear),
Any 2JZ/1JZ water pump pulley from a manual pump
AFAIK, All USDM 2JZ motors are NON-hydroWater pump housing (rear),
Any 2JZ/1JZ water pump pulley from a manual pump
Oil Pan:
To convert mid sump to front sump. You need: (Stock Twins)
*** IT is up to YOU to double check part numbers listed. Numbers listed are for 93-94 Lexus GS300
Upper oil pan #12111-46102
Lower oil pan #?????-?????
Pickup # ?????-?????
Gaskets #?????-?????
Baffle plate #12121-46010
Front sump dipstick #15301-46022
Dipstick guide #11452-46010
Bolts for lower pan, pickup, and baffel (all the same) 90119-06624
Front sump oil drain fitting #?????-?????
2 rubber drain lines from turbo #?????-????? and #?????-?????
Lower oil pan #?????-?????
Pickup # ?????-?????
Gaskets #?????-?????
Baffle plate #12121-46010
Front sump dipstick #15301-46022
Dipstick guide #11452-46010
Bolts for lower pan, pickup, and baffel (all the same) 90119-06624
Front sump oil drain fitting #?????-?????
2 rubber drain lines from turbo #?????-????? and #?????-?????
Modifying to big single (et al)
Beyond the scope of this FAQ
Fuel filter:
JZA70 1JZ for example, does not have a fuel filter at the engine. You have to adapt the 5M style fuel filter setup to the JZA70 fuel line system. Not very difficult.
Fuel pump:
Supra TT or MK3t
Walbro 255
Bosch 044 ? external?
Walbro 255
Bosch 044 ? external?
note: Consider dual pumps if running much over stock boost on the JZ engine.
Engine mounts:
1: Custom brackets, use original mounts
2: Custom crossmember, to use original JZ mounts (norbie style)
Wiring/ECU:
(automatic ecu/harness will work fine)
1: Supra JZA70 harness (extend harness, and follow 7M style conversion diagrams)
2: Soarer 1JZ harness (extend harness, use wire diagrams to find appropriate power sources)
3: Aristo 2JZ harness (study US 2jz diagrams, good luck)
Power Steering:
1:RA65 Celica power steering lines (slight encouragement needed)
2riftmotion power steering line kit for the mk3 to 1jz pump is a direct fit
3:If having custom lines made, make sure to take the xJZ power steering pump end and your MKII Steering rack end.
Power steering cooler lines are on the low pressure side. (rack -> cooler ->reservoir)
A/C:2riftmotion power steering line kit for the mk3 to 1jz pump is a direct fit
3:If having custom lines made, make sure to take the xJZ power steering pump end and your MKII Steering rack end.
Power steering cooler lines are on the low pressure side. (rack -> cooler ->reservoir)
Use JZ compressor, convert to MA70 A/C head unit ( the top piece ). This will allow you to use stock MK2 A/C Button. Custom lines, similar to 7M/MK2 swap after that.
If deleting the AC:
Use Dayco serpentine belt # 5060735
Alternators (Generally 100 amp)
Direct fit: (MKII Alt connector is on the body/fender harness not the engine harness)
1992 SC300 5-speed alternators (Autozone - Duralast alt. P/N 14459)
The JZS147 Aristo
Note: Upgrade your Alt wires to 4 guage.
TACH:
Make your own
Similar to 7MGTE Swap
Use any 2JZGTE/1JZGTE Igniter (if not supplied with engine)
OEM Gasket Sets
1JZGTE full engine gasket kit - # 04111-46033
Reference Websites:
1JZ.com
Arnout's 1JZ Swap Page (MKIII but good info for JZA70)
Soarer Parts List
Soarer Central
Aristo Forums(JZS147)
http://www.jzx81.net/models.html <--- Dead Link
http://www.jzx81.net<--- Dead Link
If you have other categories to add post them and I'll add to this post. Anything that has a "???" in it either needs confirmation or the information. If you have this info, please post.
A big thanks to everyone who has posted. This 1st post is a condensed 'soup' version of the comments and knowledge posted by many of our great members, some subjects are explored in greater detail in pages to follow.
Updated to page [12]