El Xr6 Engines Distinguishing Series 1 From 2

[QUIKXR6]

Hi guys i have just recently purchased an el xr6 engine and was wondering how to distinguish whether it is a series 1 or a series 2 engine...i hear that the series 2 engines come with au internals.... Cheers Frank

[FPVWEPN]

i think the numbers on the front of the head frank if it starts with w i think its got au inside can some1 confirm this????

[Gunns]

Anything stamped with 96DA is series 2

[EFFalcon]

are you sure on the 96DA part number gunns?
the EL update and hybrid engine wasnt until very late in the EL run (ala. 98)

[Gunns]

Well my el series 1 head has 95DA, and a mate has a 96DA which is off a series 2 and my 1004 wont fit in it. So it might be 96 and up.

[old_mate]

it is definately 98 and up

i have a 97 and it aint got no AU head

[QUIKXR6]

On my el tickford head it writes 94DT which is series one...i found out when i had a look at the car the engine came from it was an 97 model el xr6 cheers...thanks for ur help guys...

[Psycho Chicken]

EF/EL XR heads are the same. All will read 94DT. Excluding the "EL2" of course.

[PULLY6]

As of April 98 Ford started slapping AU components in the EL. AU/EL engines will read 96DA.

[Age182]

lol 2 points to PULLY6

[INJECTED_250]

El XR6 never got the au internals im nearly 100 percent sure of this.. If it is a hybrid block it will have Vr2 or similar cast into the block on the drivers side above the pan gasget line. THe head would have to be an au XR head... im pretty sure these never came out in the el series 2 xr6 (late late one )

and ive got a 95DT head which is an EF/el head .. so there must be some difernces from ef-el xr6 heads

[PULLY6]

Shaddup! I had the window open for an hour before I decided to reply!

Hence why everyone hit it first :P

[Psycho Chicken]

I'm pretty sure XRs got nothing AU engine wise either, but someone jumped down my throat last time I said that.

well a mate of mine pulled the the head off an el wreck he bought and its exactly the same as the one i pulled off our au series 2 .don't know about interals though they completely changed the sump/botom end setup on au's

[QUOTE=INJECTED_250]El XR6 never got the au internals im nearly 100 percent sure of this.. If it is a hybrid block it will have Vr2 or similar cast into the block on the drivers side above the pan gasget line. THe head would have to be an au XR head... im pretty sure these never came out in the el series 2 xr6 (late late one )

all au i6 heads are the same ford only changed the cam profile for the xr6

[THORNSPAWN]

Originally Posted by Nik

all au i6 heads are the same ford only changed the cam profile for the xr6

AU had 4 different heads:
standard
gas, standard head with different valves
HP different casting, higher comp
VCT different casting again, same chambers\comp as HP

i was only refering to standard au and hp head ,they are both the same .
as for gas and vct woudn't have a clue .
didn't mean to confuse anyone

[THORNSPAWN]

AU standard and HP heads are different they're a different casting to begin with.

all rocker gear and springs and valves are same ,the only diference i was able to find out was that hp had a slightly bigger cam profile .
when you say they are different castings ,what do you mean ?they have different sized ports /valves ?

[THORNSPAWN]

They have different chambers and HP\VCT are scalloped (deshrouded) around the exhaust valves, the valves and springs are the same as standard so is the rocker gear, yes the cam is different. HP also has the "T" cast on the front and the strengthening "rib"
on the front which earlier heads had.

[INJECTED_250]

And not to meantion the AU tickford head has a big T on the front of it.. All that is the same is VAlve sizes.. AU Xr6 and stock Au's run the same size valves.... But are differnt heads.

well i stand corrected , not the info i was told .
how much better would a hp head perform compared to a stock au one ,running the same cam ?
when you say scalloped /deshrouded do you mean they don't have that little bulge (for lack of a better word )between the intake and exhaust port .

[THORNSPAWN]

Originally Posted by Nik

well i stand corrected , not the info i was told .
how much better would a hp head perform compared to a stock au one ,running the same cam ?
when you say scalloped /deshrouded do you mean they don't have that little bulge (for lack of a better word )between the intake and exhaust port .

They still have that, they're machined between the exhaust seat and the edge of the chamber to increase flow.

[the5thduke]

http://www.trueblueford.com/ELengine.html i think this expains it

[arm79]

There are some very wrong people and some very right people in this thread.

Hybrid EL's I6's (inc XR's) started in Feb 98.

There are 3 head designs for the EL XR. 94DT, 95DT and 96DT. Im guessing 94DT's are left overs from the EF range, as they only seem to be on the first 1996 model EL's. 95DT's were used intil 2/98, when they went to the 96DT part number head. None of the external hybrid components are labelled with the WR2 part numbers, and the 96Dx part number on the heads is only distinguishing feature. Apart from the compliance plate of course.

The block is AU spec. The crank is AU, or a semi EL/AU hybrid design. Yes is does have a WR2 part number. And the main caps are of the larger AU design. However, it does use EL Rods, pistons and rings.

And as you said, the 96DT head design is different. Using AU rockers, springs, valves and cam.

Regards to the head design, the port sizes gradually shrunk and had a different design from 94Dx to 96Dx, with the 96DT being the smallest. When you drive a car with a hybrid engine, you tend to notice its not as quick off the line, but had a heap more high rpm power, and is definately alot revier and smoother to push hard.