Hello you clever Gen6 people .

I need some help/advise... again .
We have a topic going on toyotaownersclub.com about swapping the head from a 3sfe to a 3sge . Has anyone on here done this or heard of it ? My 3sfe is about 130-140bhp but the 3sge is 170-180bhp . Apparantly the main difference is the head and ecu . If i can get them will it work ? will the 3sfe put out the 3sge perfromance ?

TOC - Topic

Does this make sense to you ? - sorry if this topic has been discussed before , i always forget to search .

ANY help will be appreciated

'Thanks Chris

This post has been edited by crismillencolin: Mar 27, 2006 - 8:41 AM

thats what im trying to do.

I'm not too sure you'll get the same performance from just swapping the head that you would from the entire 3sge block.

There is a guy who swapped a 5efe head from a Toyota Paseo onto his 3ee in his Toyota Tercel and he said it sounded a little nicer and performed a little better, but was not the same as the 5efe. So you should notice a definite improvement, but expecting 3sge performance may be asking a bit much.

But I could be way off.

>

Really ! Hows it going mate ?
SO it is possible then ? or are we gonna find out

I just need someone in the know to give me a definite answer.

>


Apparantly its the same block used for the 3sfe and some 3sge . So it should work but i think i'm gonna have to spend a few £££ to find out

3s-fe is the same bore and stroke as the 3s-ge. The block is the same, I'm pretty sure the crank and rods are the same. But the 3s-ge pistons are pocketed for the valves. Now, the 3s-fe head has it's valves at 60 degrees, the 3s-ge are at 45 degrees IIRC. Also, the squish area, and CR will be different, so I am totally convinced that the pistons will need to be replaced as well.

And even if you didn't have to swap the pistons - it won't be a couple of hundred quid to swap the c/head over! More like £1000+ (not even including labour). Parts you will need to swap:

complete cylinder head assembly,
cambelt, possibly pulleys and tensioner
Inlet and exhaust manifolds and pipework
Engine wiring harness
ECU
Fuel rail (and probably most of the rest of the fuel system)
ACIS VSV, vac tank, piping

These are just the things I can think of off the top of my head. A complete engine transplant would be cheaper and less work than rebuilding your's with a different c/head


-oh oh , maybe not then - A TOC member Mike B , just told me this .
Ah well nice thought eh

You may also want to check out the Rav4 groups, as they have the 3SFE's and like doing swaps!

This post has been edited by scothaniel: Mar 27, 2006 - 2:58 PM

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really , didnt know that - thanks . i'll check that one out

Refer here:

http://www.6gc.net/forums/index.php?showtopic=30528&hl

to reiterate... a 3S Block is a 3S block. The GE head should mate up, but you'll have to swap over pistons also. I haven't had a chance to open up the later 3SGE's, so I can't say for sure if they're actually the same internals as the 3SFE. I tend to lean towards them being different internals... but you never know. In my opinion, the work to swap heads and pistons doesn't justify simply buying a complete 3SGE.