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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 10:53
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My head is cracked. I'd like to know about the construction and suitability of the 3S-GE and 3S-GTE heads (1994-1999 3rd generation) and if one head's guts can be exchanged for another's, ie. shim-over against shim-under bucket design. I need a replacement one and I'm not sure where to look to find one, nor how much the cost would be to get it.
The head I have is from an ST205 GT-Four and the crack I'm presuming is from the initial impact that wrote off the Japanese GT-Four that was (and is now mine) which has been exacerbated by the running in I've given it so far.
Superflo Heads reconditioned the head before it was put back onto my block and run-in... would these guys have any liability?
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Location:
Campbelltown, NSW
Registered:
November 2004
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 11:29
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hey buddy sorry i am not help with ur question but am interested in the progress of ur rav...i dont seem to be able to open any pictures on the forum of ur car for some reason just wondering if u could post some recent fotos thanks..
CHEERS
NOLAN
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 11:36
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My host site changed web providers late last year and with all this shit happening I've not had the time, opportunity or the inclination of redirecting my pics until this is sorted.
Sorry but this is too important.
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Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 11:47
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| RAV-GT4 wrote on Tue, 11 January 2005 21:53 |
Superflo Heads reconditioned the head before it was put back onto my block and run-in... would these guys have any liability?
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I was going to say that you had the head recond. That should have been picked up by them. Them been liable is another story..... once the head is installed and used its very difficult to prove that the crack already existed prior to the install.
Your car and mine will need vintage plates when they hit the road 
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Location:
Campbelltown, NSW
Registered:
November 2004
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 11:48
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oops my bad
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Location:
nth ringwood, Victoria
Registered:
August 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 11:59
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yes the gen 3 heads are the same as the turbo 1s are
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 12:16
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Don't sweat it Nolan, I'll put them up after this issue's sorted. You got a RAV4 as well or you just browsing mine?
Anhar, it's looking very much that way unfortunately.
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 12:27
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CelicaRA45, thanks for that info. Because my ST205 head was shim-under-bucket construction, anything I should be aware of when getting one with shim-over-bucket instead? Is the valve cover any different?
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Location:
nth ringwood, Victoria
Registered:
August 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 21:07
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all gen 3 heads are shim under NA and turbo ,id say the rocker cover might be different but everything else is the same valves spring pressures inlet ports and exhaust ports are the same ,pistons thou are different higher compression 10.5to 1
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Location:
newcastle
Registered:
April 2004
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Re: 3S-GE / 3S-GTE head interchangability?
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Tue, 11 January 2005 21:28
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sorry to hear that andrew
where abouts is the crack?
wondering whether they would have picked
it up with a pressure test when reco'ing head
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Wed, 12 January 2005 01:06
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Thanks heaps for the info. Troy, the crack is in line with #2 exhaust, so I'm told.
I'm also told it might be possible to repair the head as well... I'm going down to get photos of the crack this afternoon, will post up pics of the damage soon.
Andrew.
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Location:
South Australia
Registered:
July 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Wed, 12 January 2005 01:20
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I'm pretty sure the cam profile would be different between the NA and Turbo engines, aside from that they are exactly the same cast.
I'm not sure it's worth the expense to get the head welded up. Depends whether it's possible or not, you don't want to get these kind of things done the cheap'n'nasty way either.
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Wed, 12 January 2005 01:40
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Well I'm going to find out whether it can be fixed or not this afternoon. If it can't be done I won't do it.
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Location:
newcastle
Registered:
April 2004
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Re: 3S-GE / 3S-GTE head interchangability?
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Wed, 12 January 2005 01:51
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sad to say but at least now
you know what the problem is
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Wed, 12 January 2005 04:06
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Yeah Troy, the head gasket was in perfect condition, the inlet and exhaust on all four cylinders appeared to be ok until #2 ex-side seemed to be flaking the carbon build-up. This was as a result of water getting let into the head. The reason why the water was getting in was because of a hairline crack (that I now have pics of), and I'm not sure that it's repairable.
I need to know if there's anyone who'd sell a good reco'd 3S-GTE head for a good price.
Andrew.
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Wed, 12 January 2005 06:49
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I very much doubt the gen 3 3SGTE head is the same as the 3SGE.
The block however is pretty much identical.
The Gen3 3SGTE bottom end workshop manual is actually listed as the ST20X 3SGE engine manual.
A lot of the valvetrain components are interchangable.
Don't discard the head just yet though, check with a few machinists to see if the head can be welded.
If they say no then give me the head and I'll take it to someone I know who will give it a no BS assessment.
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Wed, 12 January 2005 16:34
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Thanks Toobs, the head is currently at JB Race Engines at Granville who are flow-testing, crack-testing and whatever else is needed to see whether this hairline crack can be fixed. It's a prick to get to though, but if the head is disassembled it could be accessed ok (maybe). 
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Toymods Vice President
Location:
Sydney
Registered:
May 2002
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: 3S-GE / 3S-GTE head interchangability?
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Thu, 13 January 2005 12:41
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Thanks Josh, I just replied to him on that thread.
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