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which head is best to go with???? - 6G Celicas Forums

Topic #48867 10 posts Started by 95st-celica
I have an ST, but as we all know they are extreamily slow stock...i would love to put a different head on it but theres 2 problems...1) i have no idea which one would make the best/most amount of power and 2) how hard it would be and where i could get a new/used head at....would i be able to use a head off of a GT and if so what other options would i have to make even more power, im sure there are more heads i can use?..im not to sure how common of a mod this is but i would love to do it...any feedback at all would be great so i can get some ideas together...thanks!

I"M NOT A TOYOTA FAN, IM A FANATIC1984 accord hatch 5 speed (T-Belt)-Junkyard1991 VDUB jetta wolfsburg Ed. 5 speed (clutch)-junkyard1988 Dodge Aries K (sold)1969 Chevy El camino - Traded for celica1991 Dodge Daytona-Traded for Celica1988 Chevy Camaro-Work in Progress1989 Ford Mustang LX 5.0 - For Sale1995 Toyota Celica-Work in Progress
unlike the hondas, switching heads on the celica is not that easy.
the "A" series, and "S" series egines are totally diffrent designs. ones a 1.8l the other a 2.2l
there are a couple other A series heads that you can get to fit on the 7a block IIRC, but i dont know much about which ones, as i have a GT.

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
I was under the impression that putting a larger head on would require a standalone to run properly? Can anyone shed some light on this?
yes you will need to use a stand alone engine management to run properly.
4A-G(z)E heads would work

QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
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QUOTE(stephen_lee @ Jun 3, 2007 - 2:57 AM) [snapback]564353[/snapback]
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4A-G(z)E heads would work


i dont mean to question your judgement but how do you know...have you done/seen this done befor and also how hard is it?? do i need a stand alone or anything to make it work properly? any other info would be great

This post has been edited by 95st-celica: Jun 3, 2007 - 2:41 AM

I"M NOT A TOYOTA FAN, IM A FANATIC1984 accord hatch 5 speed (T-Belt)-Junkyard1991 VDUB jetta wolfsburg Ed. 5 speed (clutch)-junkyard1988 Dodge Aries K (sold)1969 Chevy El camino - Traded for celica1991 Dodge Daytona-Traded for Celica1988 Chevy Camaro-Work in Progress1989 Ford Mustang LX 5.0 - For Sale1995 Toyota Celica-Work in Progress
I believe any of the 4age heads work with the 7afe block.

you have many choices, 4age, 4agze, 20v.... ect ect

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QUOTE(Hanyo @ Jun 2, 2007 - 7:40 PM) [snapback]564305[/snapback]
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yes you will need to use a stand alone engine management to run properly.



search!

http://www.6gc.net/forums/index.php?showtopic=17020


Before you ask another question, answer this one:

do you plan on adding force induction to your build?



This post has been edited by Hanyo: Jun 3, 2007 - 3:56 AM
look up nik he did a head swap and he posted the build , it cost alot of money and time.
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QUOTE(95st-celica @ Jun 3, 2007 - 7:41 AM) [snapback]564365[/snapback]
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QUOTE(stephen_lee @ Jun 3, 2007 - 2:57 AM) [snapback]564353[/snapback]
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4A-G(z)E heads would work


i dont mean to question your judgment but how do you know...have you done/seen this done befor and also how hard is it?? do i need a stand alone or anything to make it work properly? any other info would be great


its been done. not that easy, but possible.

QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
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QUOTE(stephen_lee @ Jun 3, 2007 - 7:30 PM) [snapback]564474[/snapback]
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its been done. not that easy, but possible.

On the contrary... it's been done a LOT and it's not too hard. Just imagine a 4AGE swap with a 7A block. Not too difficult... but then again... how many people have 4AG swaps...

The 7AGE will run perfectly fine on the stock 4AG ecu. The price and difficutly in the end depends on how much you know, and how far you want to go. nik's cost significantly more than the average because he built a boot purpose motor. The 7AGE build can be done with stock parts... but be warned, the MAJOR weakness is the 7A rods which won't last long past 8000 rpms and they will require machining to match the pistons. You guys should google some of this stuff and learn the basics before anything however...


"It's ok to be naked girl... I'm an artist!"1995 AT200 Celica ST:stocked out daily driver...1984 AE86 Corolla GT-SR5:silvertop 20V 4AGE project car jacked up with goodies...1991 SW2x MR2 n/a:bare bones hardtop model soon to be...