is the 4ac head the same as the 4ag?

[AE92_GTS88]

Is the 4ac head the same as the 4ag head? sorry I've always wondered this.

Thanks

oh and if it is will the 4ag hks cams and cam gear work with it?

thanks

[Vince_ae92]

No that's completly different!!! Intake manifold are on top of exhaust manifold!!! On the 4ag head, intake manifold are on right side ant exhaust on left side.

4ag are 16 valves(or 20v) and 4ac are 8 valves

4ac head are smaller than 4ag one.

bla bla bla bla

If you want too upgrade a 4ac, you need stuff for 4ac only

4age and 4ac are two different engine!!

[freakinbox]

4a engine blocks are what they chair g and c heads are what makes them different as previously said

I'd have to say the BIGGEST dfference between the 2 is the fact one is sohc (single overhead cam) and the other is DOHC or twin cam (Duel overhead cam)

4ac has around 70 hp
and the 4age has 112 hp

other differences are that stock the 4age is fuel injected and the 4ac is carb'd

since one has one cam with 8 valves and the other has two cams with 16 valves the answer is NO the cam from a 4age will not work with a 4ac.

But if your wondering an ae86 with a 4ac has the same manual transmission (t50) (unless the sr5 is auto!) as the gts

[AE92_GTS88]

yeah but diffrent bell housings right?

aw well, i'll just buy the paradise racing power pack then.

[Vince_ae92]

bell housing are not the same! I edit this message because i did a mistake

The best engine for your car is 4ag(z,t)e (16,20v) Blue/Red/Silver/Black Top... in short the 4ag serie's engine

I've seen some 4ac projet and it's not very powerfull, expensive, that suck a lot of gaz(compare to 4ag)!! But, it's original...

[freakinbox]

I also thought the bell housings are not the same

[AE92_GTS88]

yeah I have 4 other 4ag powered corollas and I think its time for a 4ac

[REN69]

I think people wouldn't be swapping from their 4AC's to 4AGE's if you could use the same internal parts.

[Chucez]

Reading this thread has been painful.

But really, you won't get the same level of performance, dollar for dollar, from a 4AC as from a 4AGE. HOWEVER, you WOULD get lots of style points for having a souped up 4AC, but why waste the moneY?

I wouldn't waste my time with that engine.

Also, since you have 4 other 4AG powered Corollas, I'm sure that you would've noticed that the heads on you 4AGE corollas are lot wider, and the intake and exhaust ports are on different sides, and gathered that the two heads are not the same.

[Vince_ae92]

Originally Posted by AE92_GTS88

yeah I have 4 other 4ag powered corollas and I think its time for a 4ac

It have an 4ag specialist website, it's club4ag.com. I find with google, ,Club4ac.com!!!

It could be usefull for you and your project

The link; http://www.club4ac.com/

Good luck with your 4ac ae86 project

[freakinbox]

problem with alot of the things I hear is that people knock SOHC as being shit right off the bat. There is a vid that shows how strong a 4ac really is, wonder if ren still has the link. Forget exactly what they did, but the car was in a collision and they put nos to it and reved it as high as they could until it blew up

You wouldn't get the power dollar for dollar because parts would be insanely expensive since the 4ac isn't a popular engine to mod. If you could even find the parts you needed, you might need alot of custom stuff. I suggest forced induction for this project

[Chucez]

Originally Posted by freakinbox

problem with alot of the things I hear is that people knock SOHC as being shit right off the bat.

Don't get me wrong. I'm not knocking single cam vehicles. Hell my pushrod 2tc was a badass motor. The L16 in my 510 is can hang with my 4age. But like you said, $ for $, I'd rather just stick the 4age. I wouldn't peace-out on my L16 simply because it has a large aftermarket available (because of BRE) just like the hemi 2/3t's.

[AE92_GTS88]

Originally Posted by Chucez

Reading this thread has been painful.

But really, you won't get the same level of performance, dollar for dollar, from a 4AC as from a 4AGE. HOWEVER, you WOULD get lots of style points for having a souped up 4AC, but why waste the moneY?

I wouldn't waste my time with that engine.

Also, since you have 4 other 4AG powered Corollas, I'm sure that you would've noticed that the heads on you 4AGE corollas are lot wider, and the intake and exhaust ports are on different sides, and gathered that the two heads are not the same.

lol I have the other 4ag cars but I dont really check at the head and stuff, I only do regular mantenance on it, I only just recently started doing more mechanical work

[freakinbox]

I'd love to see a 4af/4afe modded to hell dropped into a ae86

[Flashmn]

4A-GE is just boring, as everybody puts them into their cars. Kinda like B16 to civics.
2nd gen 4A-FE is a potent engine, albeit very underrated by everybody.