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| Toquin |
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Hey guys,
I apologise if this has been done to death. I did a pretty comprehensive search but I was getting different answers to my questions and getting even more confused with each post. So here it is. I have a 98 EL falcon. The plate says it is a march build which matches up with my hybrid theory and the head starts with 96DA (also hybrid). But my problem is the engine number. I can't find anything anywhere that actually corresponds with a hybrid block. All I can find are things that say 94da, 95da, 96da etc.. But nothing that says 'VRxxxx' on it. Unless I am looking in the wrong place. I planned on putting a wade 1636 into the thing, but now I believe I have a hybrid and I need an AU cam to be re-ground into the au equivalent of the EL 1636. I want to make sure I grab the right cam, otherwise I know bad things will happen. Help is gladly appreciated. Thank you.
_________________ 98 EL Falcon Gli - AU II intech - t5 manual - Lowered on king lows - 2.5" custom exhaust - 200cell hi flow cat - 17" Speedy cobalt's powder coated in steel pearl - powerwindows - suede door inserts (classy) - fog lights - (probably other things I can't remember) |
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| bry40l |
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The fact that your running the au/hybrid el head means you will need an au cam regardless of the engine blocks cast number.
_________________ BF XR6 |
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| bry40l |
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The fact that your running the au/hybrid el head means you will need an au cam regardless of the engine blocks cast number.
_________________ BF XR6 |
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| Toquin |
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I have read that it may be possible for the hybrid heads to still run normal el rockers, and this makes me wonder if that may have been done. I had the rocker cover off about two weeks ago and I don't recall seeing conical shaped springs which I have been told au heads have.
Also, would you happen to know what au cams I can use? I have been to the wreckers and got myself an au series 1 cam. But I don't know if that is right thing. I have been told to steer clear from vct engines, so that is what I did.
_________________ 98 EL Falcon Gli - AU II intech - t5 manual - Lowered on king lows - 2.5" custom exhaust - 200cell hi flow cat - 17" Speedy cobalt's powder coated in steel pearl - powerwindows - suede door inserts (classy) - fog lights - (probably other things I can't remember) |
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| Deff |
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The VRxxxxx code is behind engine mount, almost impossible to see with mounts on. I've had 3 EL's and all were hybrid LOL
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| GeZza200 |
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if its all original and is a 96DA head you will need the Wade 1502AU cam which is the 1636 equiv
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| creeture3 |
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Have a look at the valve springs. If they are conical i.e.: smaller at the top than at the bottom, it is a hybrid head, and MUST run a AU cam profile with AU rockers, as the valve angle is different to previous models, as is the rocker ratio
If they are straight, it is not a hybrid (AU) and can run any cam/rocker combination from EB to EL pre 1998 |
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| Toquin |
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Cheers for the replies fellas, muchly appreciated.
I have to go compression test the stupid thing today, so while I'm out there I'll pull the rocker cover off and have a look at those springs. This will be fun, apparently it is meant to hit 45 in brissy today.  Also, would any of you guys happen to know a little about how wade do their cams? I have read that you need an exchange cam to send them, so I ran off to the wreckers a couple of weeks ago and grabbed an AU series 1 cam to send to them. But then I read elsewhere that you don't need an exchange cam unless they ask for one. So I am a little confused as to whether I actually need to send them a cam or not, and even if it is the right cam in the first place.. Thanks guys 
_________________ 98 EL Falcon Gli - AU II intech - t5 manual - Lowered on king lows - 2.5" custom exhaust - 200cell hi flow cat - 17" Speedy cobalt's powder coated in steel pearl - powerwindows - suede door inserts (classy) - fog lights - (probably other things I can't remember) |
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| bry40l |
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Its cheaper if you send them a cam.
_________________ BF XR6 |
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| Toquin |
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Okay, so to save myself some time, I didn't remove the rocker cover, but I undid the bolts so I could lift it up enough to get a look at the springs.
To me they seem to be somewhat conical. But I'm not sure if my eyes are playing tricks on me.     Also one point to note. When I was at the wreckers, I found all the AU heads had a bolt running up on the right hand corner of the head - I didn't find that on any other heads apart from hybrids.  Also I did the compression test and all seemed okay. I can post results if people are interested. Anyway, I have managed to break my rear right window reg somehow...another thing to fix. :'(
_________________ 98 EL Falcon Gli - AU II intech - t5 manual - Lowered on king lows - 2.5" custom exhaust - 200cell hi flow cat - 17" Speedy cobalt's powder coated in steel pearl - powerwindows - suede door inserts (classy) - fog lights - (probably other things I can't remember) |
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| creeture3 |
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Those springs are straight. The AU ones are obviously conical
Quote: I have read that it may be possible for the hybrid heads to still run normal el rockers IIRC, you cannot run E series rockers on AU head, as the ratio is different, as is the valve angle. I would suggest that, if you think you have a hybrid, that someone has replaced the head with an E head. Maybe when repairing the head gasket? That said, I have straight springs on my head, which I know is a hybrid head, as when JMM modified it, he couldn't get the conical springs and replaced them with the straight ones |
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| Toquin |
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Are there any other ways of identifying a hybrid head? Because the part number says it is a hybrid, but the springs are not. Can you use straight springs on a hybrid head?
_________________ 98 EL Falcon Gli - AU II intech - t5 manual - Lowered on king lows - 2.5" custom exhaust - 200cell hi flow cat - 17" Speedy cobalt's powder coated in steel pearl - powerwindows - suede door inserts (classy) - fog lights - (probably other things I can't remember) |
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| Toquin |
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Are there any markings or part numbers on the rocker assembly? If so, does anyone know what they should be for a hyrbid?
_________________ 98 EL Falcon Gli - AU II intech - t5 manual - Lowered on king lows - 2.5" custom exhaust - 200cell hi flow cat - 17" Speedy cobalt's powder coated in steel pearl - powerwindows - suede door inserts (classy) - fog lights - (probably other things I can't remember) |
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| Toquin |
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Guys, where did everyone go?
Anyway, I think I have found some stuff that will be helpful for others. I'm pretty sure that this is a hybrid head, and I will show why. Firstly, I happened to have the cam positioned in such a way that I could read the part number on it. (I don't actually know if this correlates to a hybrid head, but I'm sure it could help someone) You can see here that the number starts with 96 (it is upside down though)  In this one, 4 lobes down, the next bit is DA which makes up the hybrid 96DA number.  Also, in regards to the springs. I think they are actually conical. I measured the top and I got 28mm and then about halfway down the spring it measured 32mm-ish. (my verniers are too big to fit inside the head properly to measure the bottom of the spring) Another thing, I have read that the EB-EL models have 8.7mm valve stems and that Hybrid and AU's have 7mm valve stems. This is what I measured mine at. (I apologise for the blurriness)  can anyone advise me on what I have found?
_________________ 98 EL Falcon Gli - AU II intech - t5 manual - Lowered on king lows - 2.5" custom exhaust - 200cell hi flow cat - 17" Speedy cobalt's powder coated in steel pearl - powerwindows - suede door inserts (classy) - fog lights - (probably other things I can't remember) |
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| Deff |
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Hybrid 100%
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