Like the title says, I'm making my next motor a N/A high compression 22RE, with the 20R head....I think. Which is why I'm here. I'm looking for some info...again.

Please take a few minutes, and read this article, so you know where I'm coming up with these questions

http://www.toysport.com/Technical%20...tech_notes.htm


I want to build a ridiculously stupid, and un-needed motor. This low compression motor I just built is boring, and I don't have the patience to finish the turbo set up. The article says I must use a 20R head on a 22R "early block"...what is an "early block"? Which years? This motor will be going into a 92 2WD drift truck. I don't know much about the "early" and "late" model 22R's, I just thought that from 85-95, all the motors were pretty much the same.

Can someone help me out with which 20R head and 22R block I will need to search for? I would like to get this project started.

Thanks again.

 

And I am kind of in a hurry to at least find out which year head/block I need to buy...because I can get a perfect 20R head fully assembled right now for $75 bucks. Its from an 1980

 

https://www.yotatech.com/forums/f114...ization-87655/
https://www.yotatech.com/forums/f114...details-97188/
also go to google and type in "20r head on 22r block" and you get a lot of results

 

i don't think it matters what 20R head you have. just remember that without serious modification you'll be going to a carbed engine.

 

i believe an early 22r block is from 81-84,
and i think any 20r head will fit those years. dont quote me though

from LCE,

LC Engineering\'s Technical Department has provided some basic information as well as identification information to assist you in modifications to the 20R - 22R - 22RE Toyota 4 Cylinder engines. Along with our catalog, you should refer to the factory Toyota service manual for more in-depth information

We also provide our customers with a technical support phone line to assist in determining what product or products will deliver the best performance for your application and budget.

As you have seen in our catalog, we offer packages and products from mild modifications to wild modifications.
Cylinder Head Identification
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
52/54 C.C. Combustion Chamber
82/83 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 (Cast Piston) 93.0mm - 3.662\" (+.040\" Over)
Big Bore Forged Piston Kit 94.0mm - 3.701\" (+.080\" Over)

1985 - 1995 22R-22RE \"Laser Block\"
Deck Height 11.090\"
Stock Bore 92.0mm - 3.622\"
Maximum Over Bore (Cast Piston) 93.0mm - 3.6662\" (+.040\")
Big Bore Forged Piston Kit 94.0mm - 3.701\" (+.080\" Over)

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).


Crankshaft (Forged)
Stroke All 20R - 22R - 22RE 89mm - 3.5039\"
Rod Journal 2.0861 to 2.086\" (standard)
Main Journal 2.3614 to 2.13622\" (standard)

Connecting Rod (Forged)
Center to center length 5.830\"

 

So, your making a fuel injected intake for a 20r head???

 

Well, hows it going on making an intake for that setup, here is a starting list for ya. Good luVarious info, including racing notes...

- Post '85 22R block
- Pre '85 22R pistons
- '75 20R head
- '80-'84 22R intake valves
- '75-'80 timing chain guides
- post '85 timing chain
- take a hundred thousandths off the head
- use 92 octane and up fuel
ck