About a month ago I bought a 1992 Toyota Corolla LX with a 1.6L 16v engine. After a wee bit of research I found out I had the 4AFE engine, and also found out that there are commonly 4AGE engines in this car type. Now, that presents 2 problems. 1) I don't know what the difference between the two engines is, other then 30 horsepower, and 2) I can't, for the life of me, find any parts for my car. I was looking through a few webpages and they had parts listed for 88-91, then 93-02.
Now, my question to you, is are these cars just that uncommon that nobody makes anything for them or am I not looking hard enough?
G in "4age" means performance heads and f in "4afe" means economy heads, I beleive your 4afe will except parts from others i beleive as for the body your car will exept any fenders etc from any other corolla with the same body style which i beleive is ae92 chassis i'm not sure on all the details but you should be able to exchange some parts from different years of the same chassis maybe someone else can help you a bit more im not exactly an expert on cars or anything... good luck.
If you wanna get technical.. the model was actually made from 87-91 but it was marketed and sold as 88-92, mostly made in Canada at the Cambridge, ON plant. (Except for some sedans and all the coupes were made in Japan)
Here's some pics for you of the motors.
4AF (Carbed, the 4AFE is got EFI)
Look at the pictures up there.. which motor is it?? DOHC and TWIN CAM are somewhat similar,
I think the 4AFE is a DOHC motor I just can't remember off hand, I thought it was a single cam because its small enough to but I could be wrong.. I'm just confusing myself.
Ahhh okay, it's the 4AFE. I had to go outside in the snow and pop the hood and double check. I don't know why I thought I saw it said DOHC on there somewhere, but it doesn't say it on the valve cover.
Now that I have that answered, from what I understand it's the same block, so couldn't I pop a 20v head on it and get new intake manifold, exhaust manifold, and such? Or would I have to replace the entire engine?
they are both DOHC. Like damn it just means Dual Overhead Cam, they both have 2 cams... Now the difference is how close the cams are to each other. In the 4age they are farther apart and both have their own pully's on the timing belt, where with the 4af/4afe engine they are really close together so there is only one pully on the timing belt and under the valve cover they are meshed together with gears.
I have the 4af, not to bad but I want a 4age. I would think unless you race or do crazy shit the 4af is fine, actually the 4af is fine for that also just harder to keep up.
Now with the question about changing just the head, there have been a few posts on that. Don't do it. The pistons, crank, just about everything between the 4age and 4afe are different. So unless you change everything else too it won't do anything good for you. You should just replace the whole engine. Even the transmissions for the 2 engines are different (just so you know).
You could also put a 4agze into the car (supercharged 4age) or a 4age 20 valve (silver or blacktop).
Last edited by freakinbox; 11-07-2005 at 08:29 PM.
The blocks are similar but are not the same, you'd be better off using a 7AFE block than the 4AFE the 7AFE block is stronger. I would recommend a motor swap over a hybrid depending on your money issues.. but if money is not an issue, go for the 4AGE/7AFE hybrid.
^^ Actually the blocks are the same. Exactly the same. The 7A is just a stroked 4A. Both are a 5ribbed block and being an A family engine have the same dimensions. The only difference is really that the 7A's being a 5th gen block came with more advanced oil squirters and a spot for an oil cooler. In fact - the 20v uses the 7A block with the stroke aof a 4A.
And yes, both the 4th gen 4AFE and 5th gen 4AFE and 7AFE are scissor driven 16v DOHC heads. The 4AF is a SOHC 8v head. The 4AGE's are all true DOHC in both 16v and 20v dirivatives.
Vilyan: you could pop a 20v head on, but it would run like crap. The 20v runs on either 10.5:1 (Silvertop) or 11:1 (Blacktop) compression ratio. The 4th Gen 4A's run on about 7.5:1 from memory. The other problem you would have in doing that is the distributor. The 4AFE's had the coil in the dizzy, whilst the 20v's have a seperate coil and ignitor.
Then you have the issue of the wiring. 20v's have a knock sensor that the 4A's dont have. That is why the GE's use the 7A block. Not to mention that the plugs on the injectors are different to the 4th gen 4A's fuel rail and are of a different impedence. Then you would still have to somehow fit the GE's ECU. Good luck on the FE's harness.
Other than that, sure you can do it. The gearbox is actually the same (sort of). Unless you were one of the unlucky ones to get a C50 box on an FE, the C52 box found on the later FE's is the same as the Japanese C52's found on 20v's - with First and Second a little longer on the US and Australian built C52's. But they are all bolt on anyway.
Its up to you. It is less work to get a half cut tho...
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- 2001 AU Ford Fairmont Station Wagon (The Family Taxi)
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