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Old 12-07-2019, 04:46 PM #1
maxmad88 maxmad88 is offline
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The Differences in 22re

I have a 88 4runner and im wondering would the 22re out of a 91 be the same as the one in my 88? Any parts i would need to switch over?
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Old 12-08-2019, 09:21 PM #2
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Mechanically they are the same.
However, there are a lot of little differences (intake, throttle body, sensors, exhaust manifold, injectors, wiring harness, vacuum hoses valves).

I would keep everything electrical you have and swap over the mechanical components. My cousin and I just did this with an 87 and 89 22RE
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Old 12-13-2019, 02:40 PM #3
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LC engineering has a lot of great info on their site.

LC ENGINEERING Engine Tech

1975 - 1980 20R Cylinder Head
Round Intake Port
Round Exhaust Port
80/81 C.C. Chamber
Intake Valve Diameter 43mm
Exhaust Valve Diameter 35mm

1981 - 1984 22R Cylinder Head
Square Intake Port
Round Exhaust Port
82/83 C.C. Chamber
Intake Valve Diameter 44.5mm
Exhaust Valve Diameter 36.5mm

1985 - 1995 22R-22RE Cylinder Head
Square Intake Port
Pear Shape Exhaust Port
57 C.C. Combustion Chamber
60 C.C. Chamber (Turbo) Intake Valve Diameter 44.5mm
Exhaust Valve Diameter 36.5mm

Engine Block Identification
1975 - 1980 20R Block
Deck Height 11.280"
Stock Bore 88.5mm - 3.484"
Maximum Over Bore 90.0mm - 3.544"

1981 - 1984 22R Block
Deck Height 11.280"
Stock Bore 92.0mm - 3.622"
Maximum Over Bore 93.0mm - 3.662"
Big Bore Forged Piston Kit 94.0mm - 3.701"

1985 - 1995 22R-22RE "Laser Block"
Deck Height 11.090"
Stock Bore 92.0mm - 3.622"
Maximum Over Bore 93.0mm - 3.6662"
Big Bore Forged Piston Kit 94.0mm - 3.701"

All Toyota 20R - 22R - 22RE engines use the same crankshaft and connecting rods. To accommodate the different deck heights, Toyota changed the compression height (piston pin location).
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Old 07-05-2023, 12:53 AM #4
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Hey I know this is old but have a similar question. I have an 85 Toyota pickup 22re 4x4 and just got an 1988 22re form an auto. What are the differences and what do I need to do to keep the harness from the 88 to my 85 since my current one is jacked up? And would it even work?
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Old 07-05-2023, 09:05 AM #5
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Quote:
Originally Posted by Calking86 View Post
Hey I know this is old but have a similar question. I have an 85 Toyota pickup 22re 4x4 and just got an 1988 22re form an auto. What are the differences and what do I need to do to keep the harness from the 88 to my 85 since my current one is jacked up? And would it even work?
If I understand correctly, you want to replace a 1985 22re with a 1988 22re from an auto trans equipped truck, but don't quite get what you're saying with the harness.

The trans bolt pattern on the block is same for manual and auto trans. The ECMs will be different because of the different types of transmissions and possibly for emissions system differences.
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