Page 1 of 2 1 2 LastLast
Results 1 to 10 of 16

Thread: Point in a 7age?

  1. #1
    Member High-Rolla's Avatar
    Join Date
    Feb 2013
    Name
    Nathan
    State
    NSW
    Location
    Sydney
    Country
    Australia
    Posts
    36

    Cool Point in a 7age?

    hey guys im not really sure.... this is kind of a noob question, Buuuuut! whats the point in putting a 4age head on a 7afe block? why not just keep the 7afe head? is the 4age head better? i have no idea how because both heads have 4 valves to a cyl both are DOHC? whats the point? (: thannnnnks.

  2. #2
    Noooob
    Join Date
    Jun 2010
    Name
    Matt
    State
    NSW
    Location
    Campbelltown
    Country
    Australia
    Posts
    5,246

    Default

    Interesting question...

    4age - has always been considered the performance head, free high reving motor
    4afe - economy head which doesn't flow as well.

    I wonder how a high comp 4afe would run
    Ae86 Drivingclub - Toyota AE86 Car Club where AE86 | KE70 | Toyota 86 / GT86 | Subaru BRZ | Scion FRS owners

  3. #3
    Member High-Rolla's Avatar
    Join Date
    Feb 2013
    Name
    Nathan
    State
    NSW
    Location
    Sydney
    Country
    Australia
    Posts
    36

    Default

    Where could you get a 7afe? Are they easy to come by?

  4. #4
    Elite rthy's Avatar
    Join Date
    Dec 2008
    Name
    Leo
    State
    VIC
    Location
    Tulla
    Country
    Australia
    Posts
    7,305

    Default

    have seen some american vids of modded 4afe's vs 4age's... and the economy head wons

    7afe's are all over the place, AE101's, AE92 RV's etc..
    30kw club

  5. #5
    Senior Member
    Join Date
    Aug 2010
    Name
    Adrian
    State
    SA
    Location
    South
    Country
    Australia
    Posts
    801

    Default

    Also because a 4age head is alot easier to run in rwd format compared to 7afe

  6. #6
    Noooob
    Join Date
    Jun 2010
    Name
    Matt
    State
    NSW
    Location
    Campbelltown
    Country
    Australia
    Posts
    5,246

    Default

    Even in fwd form, most still do the AGE head...
    Ae86 Drivingclub - Toyota AE86 Car Club where AE86 | KE70 | Toyota 86 / GT86 | Subaru BRZ | Scion FRS owners

  7. #7
    Veteran Jimmee1990's Avatar
    Join Date
    Mar 2011
    Name
    James
    State
    VIC
    Location
    Mt Dandenong
    Country
    Australia
    Posts
    1,132

    Default

    I've been told by several people who have done the development that the 7afe head has a lot more potential than any of the 4age heads do. Just you can use the ge head and just bolt on water fittings to be rwd, instead of having the design and make stuff up to get it to work. And everyone says the ge head is the better one, so everyone just follows that idea...

  8. #8
    Senior Member Hen may possibly be a nut's Avatar
    Join Date
    Jan 2009
    Name
    Hen
    State
    Victoria
    Location
    Mt Macedon
    Country
    Australia
    Posts
    909

    Default

    I can remember a similar discussion years ago where Bill Sherwood espoused the view that a particular generation 4AFE has the head with the most potential.

    My understanding of the situation:
    - GE head is better out of the box and has heaps of aftermarket support
    - FE head (well some of them) have a better fundamental design (angle of port toward valve, etc) so will end up better if you go all out. But given the lack of aftermarket you'll be looking af lots of custom stuff.

    However I have no real data or experience to back it up.

  9. #9
    Moderator Sam-Q's Avatar
    Join Date
    Dec 2008
    Name
    Sam
    State
    VIC
    Location
    Endeavour Hills
    Country
    Australia
    Posts
    4,242

    Default

    As above, I was going to make a high performance FE head but my idea shut down shortly after Kelford cams in QLD did because no one could sell me some rewelded cams for much less than $1000.

    People fit the 7afe bottom end to a 4age because firstly their readily available and good later model 4age cranks are not- well second hand anyway. Then they are also meant to shift the max power being generated so it happens about 1000rpm sooner, so more driveable
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

    - SQ Engineering on facebook -

    Please e-mail to contact me instead of sending a private message on here.

  10. #10
    Noooob
    Join Date
    Jun 2010
    Name
    Matt
    State
    NSW
    Location
    Campbelltown
    Country
    Australia
    Posts
    5,246

    Default

    Would 4age cams drop into a 4afe head with the right prep? or are they totally different setups?
    Ae86 Drivingclub - Toyota AE86 Car Club where AE86 | KE70 | Toyota 86 / GT86 | Subaru BRZ | Scion FRS owners

Page 1 of 2 1 2 LastLast

Similar Threads

  1. Replies: 22
    Last Post: 5th March 2012, 10:33 AM
  2. 7age pistons
    By jimmy19650 in forum Technical - Questions
    Replies: 6
    Last Post: 31st December 2009, 10:56 PM
  3. monza 4 point racing harnessgot a monza 4 point harness
    By HiLtOn in forum Car Parts For Sale
    Replies: 2
    Last Post: 29th September 2007, 02:35 PM
  4. 7AGE
    By juzzo84 in forum Technical - Questions
    Replies: 10
    Last Post: 27th December 2006, 09:17 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •