What will be needed for GE head on FE?

[Kr0n1k]

Since I have to do my timing belt in another month or so, I'd like to get the GE head put on the car. Good idea or bad idea? What is needed? Acessory brackets? ECU? Wiring Harness? GE Manifolds? This info should probably be in the master sticky, I didn't see it if it is already. Search yeilds not alot of info...

[REN69]

which GE to which FE? The ones I've seen done before is basically 4AGE head to 7AFE block OR 4AGE head to an AWD 4AFE block to retain the ALL-TRAC setup. These are very rare swaps so there's not too much info on them, EXCEPT from the info that the couple of people who have done them posted, hence the reason why there's no stickies on them.

Do a search for Rolla pat, he did a 7AGZE swap.

[Flashmn]

Sounds like a stupid idea.

[4Aaron GE]

For the money it would take for you to do that, you could just swap the entire engine over.

[sportrally88]

i can get a ge head for 50 bux its just the other stuff ...like labor and speciality parts that kick u in the nuts

[Pineapple]

First I don't think 4A-GE head will bolt onto 4A-FE block. I believe I've read that in Club4AG.
Second you'll need everything from the 4A-GE, wiring, ECU, sensors etc.
So why bother?

[sportrally88]

ummm 4a is the block

f and g are heads

e or no e determines weither its efi or not e= efi no e = carb

z= supercharger

t= turbo

so lets make some engines!!!

these are the factory!
4age- 4a block + g head + fuel injection
4afe- 4a block + f head + fuel injection
4af- 4a block + f head + carb
4ac- 4a block + c head (single cam) + carb
4agze- 4a block + g head + superchanger + plus fuel injection

these are SOME combinations
4ag- 4a block + g head + car (uaually dual carb)
4a(g)e- 4a block + g head(replacing f head) + fuel injection
4a(g)- 4a block + g head(replacing f head) + carb( single or dual)
4afte- 4a block + f head + turbo + fuel injection
4aft- 4a block + f head+ turbo + carb (single or dual)
4agte- 4a block + g head + turbo + fuel injection
4agzte- 4a block + g head + supercharger + turbo + fuel injection


all 4a engine series parts are interchangable this is the engine i am building

4aftt- 4a block + f head + turbo + turbo + dual carbs

[Pineapple]

You do know different year blocks may not be interchangable, right? Coolant and oil passage may not line up. There are at least 2 different 4A-GE heads, small port and large port. You also know 4A-FE piston with 4A-GE head will give you lower compression, I hope.
Unless you have bolted a 4A-GE head onto a 4A-FE block, don't make assumsions. Both 4A-FE and 4A-GE had been along for 20 years. There must be a reason why nobody got a swapped head in a 4A-FE. The only swap we know is a 7A-GE.
If you got a 4A-GE head on a 4A-FE block, post some photo. Lots of people will like to know.

[Bitter]

how far fetched and difficult is a 7A-GZE? at some point i want a MKI MR-2 with a 7agze, i was planning to use the 4agze pcm and a piggy back to control the fuel. i know about the 4agze pistons needing to be machined to fit the 7afe rods (would get stronger rods anyways), the timing belt conundrums, and some other small problems, but i dont know how feasible or infeasible that is?

[freakinbox]

can't be all that different if I can grab a newer 4afe head and shove it on my 4af.
On another forum it came up of using a smallport head and the guys there said it was alright to use a smallport head on a big port block. It's like guys making a 7age. I don't think the passages are all that different on the blocks. differences were in the ribs on the block, the thickness, hell if you really wanted to you could use a smallport block to get your oil squirters.

The reasons it's not usually done is because alot of people say it would be bad, but then again for the longest time people were saying to put a 4age in an sr5 you needed a gts suspension.

But They are right it is easier and most cost effective to just put a 4age into your car.

But you would need both intake and exhaust manifolds for sure. Would the 4afe ECU run a 4age ignition and injectors. For that you could just run MS.

I'd think it would be easier on a carbed car. Get an intake manifold made, use a carb, and aftermarket fuel pump to replace the mechanical one. Also modify a 4af distributor since there will be a lack of an ecu.

[sportrally88]

Originally Posted by Pineapple

You do know different year blocks may not be interchangable, right? Coolant and oil passage may not line up. There are at least 2 different 4A-GE heads, small port and large port. You also know 4A-FE piston with 4A-GE head will give you lower compression, I hope.
Unless you have bolted a 4A-GE head onto a 4A-FE block, don't make assumsions. Both 4A-FE and 4A-GE had been along for 20 years. There must be a reason why nobody got a swapped head in a 4A-FE. The only swap we know is a 7A-GE.
If you got a 4A-GE head on a 4A-FE block, post some photo. Lots of people will like to know.

u might want to some reasearch ....juust becuz of this post i am going to go with a g head for my turbo project!

http://tnt.freedomsnet.net/
407-408-4429 ask for danny

this is what they do!!

[REN69]

Like I said.. search for Rolla pat, he's got an AE86 with a 7AGZE.

[REN69]

My bad, I thought he had posted this on TN BUT he had posted his specs and stuff on dorikaze here we go.




Specs:

- 1.8 litre 7a-fe block oversized, decked and machined
- 7a-fe crank with new oem bearings
- 7a-fe rods with new oem bearings
- 4a-gze US Spec 8:1 pistons 81.5mm oversized new OEM
- Estimated 8.8:1 compression
- New oem piston rings
- New oem head gasket
- 4a-ge big-port head, ported, decked et machined
- 3s-gte intake and exhaust valves
- HKS 264 intake and 256 exhaust cams 8.35mm lift
- homemade adjustable cam gears
- New oem water pump
- Shimmed new oem oil pump
- TRD thermostat
- 4a-ge big port NA intake and throttle body
- Complete oem gasket and seal kit
- Toyota Previa Van 2tz-fze SC14 1435cc supercharger with 125mm SC12 pulley
- Blitz Dual Drive Blow-off valve
- 7m-gte front mount Intercooler
- 7m-gte 440cc injectors
- Venom High Flow 3s-gte fuel pump
- AE101 gze turbo pressure sensor OEM
- AE101 gze ECU
- AE101 Crank sensor
- AE101 gze coils packs
- 7m-gte igniter
- E-manage piggyback unit with injector harness and Greddy map sensor 3 Bar
- Custom coolant piping
- Custom intercooler piping
- Custom wiring
- Custom engine mounts and accesory brackets
- New oem belts
- HKS Crank pulley with dampener
- K&N air filter
- Twincore OEM Toyota radiator made to fit
- Trimline Flexalite electric fan with home made relay
- ACT clutch kit (pressure plate, clutch) good for 300 lbs of torque
- 2.5" exhaust piping
- Hi-Flow Dynomax catalyst
- Hi Flow Dynomax 3 pass exhaust

Car specs:

- OEM Wing
- Tokico HP Blue shocks
- Eibach pro-kit springs
- Front and rear TechnoToyTuning strut bars
- TRD shprt shifter
- TechnoToyTuning panhard bar
- TRD bushing kit
- OEM LSD diff completely rebuilt
- Brembo discs and metal master pads
- 200sx 15" rims
- Pirelli P700 tires 195/50/15
- Autometer boost and air-fuel gauges
- Stock T50 tranny
- Redline oil for Tranny and diff

Originally Posted by Rolla Pat

Here are the results of the 3 runs this morning :

http://i49.photobucket.com/albums/f2...esc14run01.jpg
http://i49.photobucket.com/albums/f2...esc14run02.jpg
http://i49.photobucket.com/albums/f2...esc14run03.jpg

Air-fuel measures with hp:
http://i49.photobucket.com/albums/f2...zesc14af01.jpg
http://i49.photobucket.com/albums/f2...zesc14af02.jpg
http://i49.photobucket.com/albums/f2...zesc14af03.jpg

I couldn't ask for more!! I got my 200 whp @ 6800 rpm!!! And 175 ft/lbs of torque at the wheels at 4700 rpm. With ~25% driveline loss it comes out to about 250 hp @ 6800 rpm and 217 ft-lbs of torque @ 4700 rpm at the flywheel. :thumbup

And for Ron (Mr2Swift) and others who doubted.... no power drop off on AE101 electronics!!

So with the smaller SC12 JDM pulley on next spring (+ 2psi), I should be easily hitting 210-215 whp around 15 psi.

Pat

[Kr0n1k]

Flash, you're an idiot, if I can get a GE head for $100, how would this be a bad idea, if the ECU could run the motor, and all I would need is manifolds? People ask questions to learn, obviously if I need everything from a GE, than its not feasible, but if I only needed the head + manifolds, I'm looking at a slightly lower compression GE for under $200. If everyone in Finland is as rude and ignorant as you, I hope we bomb your country soon.

[freakinbox]

you need the timing belt, do you need the timing gear on the crank too? I am not sure if it's part of the crank and if it's different than the 4age one. Head gasket, manifolds... and other shit that I can't think of right now since I just woke up

the moment the project hits about $400 - 500 you could have just done a 4age swap.