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Old 11-18-2004, 03:46   #1 (permalink)
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X Series Head Identification

I believe the heads for the x series falcons varied over the range.

I been told that the 87 efi head was the best.. why i dont know, but anywho

What i need to know is when i search the wreckers, how do i tell the difference? The shapes of the chambers and positions of the inlet and exhausts differ, i think?

Any help appreciated, history lesson required maybe.. LOL
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Old 11-18-2004, 03:57   #2 (permalink)
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Re: X Series Head Identification

on the pasenger side front of the head near 1 and 2 intake port there is a casting..

c1 c2 c2a e1 e2 ( e being injected cars )
d a few others and some with none
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Old 11-18-2004, 04:08   #3 (permalink)
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Re: X Series Head Identification

So i take it i would be after an e2?

what do the d ones mean?
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Old 11-18-2004, 04:15   #4 (permalink)
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Re: X Series Head Identification

be aware that each one almost had a different compression ratio so don't just think you can slap it on any bottom end.
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Old 11-18-2004, 04:52   #5 (permalink)
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Re: X Series Head Identification

Gonna be a complete rebuild anyway.. gonna be pretty quick

I thought all the bottom ends were the same!!
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Old 11-18-2004, 05:26   #6 (permalink)
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Re: X Series Head Identification

unleaded and leaded are differnt they have diffenrt dish pistons
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Old 11-18-2004, 05:42   #7 (permalink)
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Re: X Series Head Identification

So what sort of engine was in the 89-90 XF Ute? Was this the 3.9 like the EA or the old 250?
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Old 11-18-2004, 13:33   #8 (permalink)
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Re: X Series Head Identification

Quote:
Originally Posted by Stangas
So what sort of engine was in the 89-90 XF Ute? Was this the 3.9 like the EA or the old 250?
late XF ute upto i think early '93 had crossflow '93 dont know month 4.0 came out in XG, there was a '93 ford panel van for 3 grand i looked at a while ago thaat when i looked under the bonnet it still gad a crossflow and 3 speed auto, hence i lost interest real quick.
i'm considering doing a 4.0 conversion to my good XF running straight gas but buying a beat up XG as a donor so i can use power steer,air and radiator stuff that should be a bolt in job
i was told by an engine rconditioner that each crossflow head has different cc in chamber along with dish in pistons varying also between models
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Old 11-18-2004, 17:54   #9 (permalink)
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Re: X Series Head Identification

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Originally Posted by Cocopopz
I have been told that the EF Heads are the best they have a better commpresion chamber better valve size and straighter intake runner. They are easier to port too. I have some written info on this i will try hunt it down on the great wide world web
um.. not sure if you made a typo but an EF head won't fit an X series crossflow, did you mean XF?
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Old 11-19-2004, 15:55   #10 (permalink)
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Re: X Series Head Identification

So i should probably steer clear of mixing and matching then..

So anyone got an idea of the best of the X-series donks that i should rebuild
I spose the later models, they will be all efi'd, conversion to carb shouldnt be that hard still.

So any recommended dates of XF that would be best to hot up?
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