sti 3 or 4 heads
19 September 2005, 02:05 AM
#1
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sti 3 or 4 heads
hi looks my 2.0 has gone bad but i got a ej257 block sitting ready and a set of sti heads not sure if they are version 3 or 4 how do you tell the difference ?
whats the best head gasket to use with this setup?
cheers david
whats the best head gasket to use with this setup?
cheers david
19 September 2005, 06:54 AM
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If you have still got the factory ej257 pistons then i would recomend the 2.5 n/a gaskets that are about 1.4 or 1.6mm thick, this will give you about 8.4:1 compression.
They are the same thickness as the factory ver3-4 headgaskets so the cam timing will be unchanged.
This is what i use on my ej257 with ver3 heads.
They are the same thickness as the factory ver3-4 headgaskets so the cam timing will be unchanged.
This is what i use on my ej257 with ver3 heads.
19 September 2005, 01:35 PM
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Believe the only difference between ver 3 and 4 is the cams..
Have a set of what I believe are STi3 cams at home.. going in my next engine.
Do you have a picture with the cam covers off.. can confirm they are STi3 or 4 rather than someone thought they were etc..
Simon
Have a set of what I believe are STi3 cams at home.. going in my next engine.
Do you have a picture with the cam covers off.. can confirm they are STi3 or 4 rather than someone thought they were etc..
Simon
20 September 2005, 12:05 AM
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Originally Posted by Jolly Green Monster
Believe the only difference between ver 3 and 4 is the cams..
Have a set of what I believe are STi3 cams at home.. going in my next engine.
Do you have a picture with the cam covers off.. can confirm they are STi3 or 4 rather than someone thought they were etc..
Simon
Have a set of what I believe are STi3 cams at home.. going in my next engine.
Do you have a picture with the cam covers off.. can confirm they are STi3 or 4 rather than someone thought they were etc..
Simon
20 September 2005, 12:39 PM
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Originally Posted by megrac
If you have still got the factory ej257 pistons then i would recomend the 2.5 n/a gaskets that are about 1.4 or 1.6mm thick, this will give you about 8.4:1 compression.
They are the same thickness as the factory ver3-4 headgaskets so the cam timing will be unchanged.
This is what i use on my ej257 with ver3 heads.
They are the same thickness as the factory ver3-4 headgaskets so the cam timing will be unchanged.
This is what i use on my ej257 with ver3 heads.
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20 September 2005, 12:41 PM
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20 September 2005, 09:02 PM
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Originally Posted by Jolly Green Monster
There should be a 2 number code on the cams.. A9, C8 etc.. I cannot remember what mine are.. be interesting to see if you have the same..
Simon
Simon
g8
hl
h8
ga
21 September 2005, 09:44 AM
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They are different to my STi3 cam numbers so think STi4.. assuming mine are infact STi3 of course.. lol
As Tim says they will fit under a phase 1 manifold no problem.
Tim do you still have your STi4 cams??
As Tim says they will fit under a phase 1 manifold no problem.
Tim do you still have your STi4 cams??
22 September 2005, 09:36 PM
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Simon don't get hung up on the stamped numbers. I have seen 3 sets of supposedly STI3 cams and all had different numbers 
IIRC your cam measurements match mine, though I can't see the nubers through the covers 
IIRC your cam measurements match mine, though I can't see the nubers through the covers
