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-   -   STi HEADS... VERSION 3, OR 2 ??? (https://www.scoobynet.com/general-technical-10/783671-sti-heads-version-3-or-2-a.html)

joz8968 13 August 2009 09:26 PM

STi HEADS... VERSION 3, OR 2 ???
 
Can anyone tell, just by looking, if these are the excellent c.500bhp-capable STI Version 3 heads (and not the lesser performing STi Version 2 ones):-

Sti heads on eBay (end time 18-Aug-09 22:10:04 BST)

Thanks in advance.

merlin24 13 August 2009 10:33 PM

Email him for better pics of the valve codes and cams - quick glance shows Version 3~4 heads (shape of spark plug hole) and recessed top spring cap to take STi Inner Shim .
:thumb:

Mick

steviecrump 13 August 2009 10:41 PM

the spark plug hole shape is different to my STI version 2

STI_Baly 13 August 2009 10:54 PM

Sti version 2 has square plug holes and the newer versions will have the oval type.

Although looking at those pics which ain;t too good it looks like the buckets to the right have over bucket shims (this may just be due to the dark outline on the bucket or camera flash). But again this cannot be guaranteed until the seller takes some pics and sends them to you.

B

joz8968 13 August 2009 11:09 PM

Cheers lads.

Baly, should the STi v.3 heads have the shims UNDER buckets, then? :wonder:

Jolly Green Monster 13 August 2009 11:43 PM

Yes sti under bucket.
As said not wonderful pics but look more like v3 wrx or uk

joz8968 14 August 2009 01:11 AM


Originally Posted by Jolly Green Monster (Post 8880340)
Yes sti under bucket.
As said not wonderful pics but look more like v3 wrx or uk

How do v.3 (and v.4) WRX/UK/RoW heads compare to the comparable MY STi ones, performance-wise? Are the STi ones fitted with cams with more aggressive profiles and bigger valves, etc., etc....?

SLAB 14 August 2009 01:16 AM

Have a pal with a nice set for sale get intouch if you intrested

coops1 14 August 2009 12:38 PM

I got a set of JDM v3 sti heads if you are interested mate. PM me with an offer ..

STI_Baly 14 August 2009 01:11 PM

Joz buddy i found an old thread where there was a lot of input from all....so maybe you want to check this out. Certainly worth book marking.

I was going to put up some pictures but theres loads on this thread that we did for Adzer.

https://www.scoobynet.com/general-te...play-game.html

Hope this helps and answers all your questions any problems just drop me a PM, i got 3 sets of v3-4's and a set of V2 sti here so i could assist in measuring or speccing if needed.

STI_Baly 14 August 2009 10:54 PM

Bump for Joz to find.


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