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Hybird Motors! What are they? 

 

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 Post subject: Hybird Motors! What are they?
Posted: Sun Sep 25, 2005 1:52 pm 
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Hey guys - since im kinda new to this whole thing and i have read a lot about different motors and stuff to do to your motors!

What are these hybird motors a few people seem to have? What are the advantages of em and whats just some general info on them
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Posted: Sun Sep 25, 2005 1:55 pm 
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From what i can remember the late EL falcons came out with an AU motor so it was all AU spec rather than the EL spec... I think. :)

 

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Posted: Sun Sep 25, 2005 9:03 pm 
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el block with au head i think

 

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Posted: Sun Sep 25, 2005 9:27 pm 
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ReGiE wrote:
el block with au head i think


Opposite, AU bottom end with EL head!

From http://www.trueblueford.com

Quote:
'Hybrid' Six Cylinder:

Introduced in January 1998, the 'hybrid' six (as it was known internal to Fords - far different to the now usual connotation associated with the word 'hybrid' referring to a combined electro/internal combustion engine) was introduced to allow the early conversion of many of the Geelong machine lines to AU specifications. Externally the engines were identical to the earlier EL Falcon engine however featured full AU specification blocks as well as the AU's low inertia valve train. Unfortunately this did not extend to the AU's head, head studs or head gasket so these engines are still subject to head gasket failure as a routine part of ownership. This change did however involve changing the normally parallel valve springs to the newer conical AU items requiring new tools when servicing.

The valve stem seal was also redesigned in these engines to accommodate the thinner stem of the inlet and exhaust valves. Included in the redesign was a new installation specification for the valve stem seal (depth) so check your work shop manual for the appropriate specs if you come across one of these. The block change necessitated a special 'hybrid' crankshaft to be made, with large main bearings to suite the AU block and EL size big ends to allow the EL spec conrods still to be used. The hybrid crankshaft can be identified by the letters 'VR' cast into it verses 'WR' which signifies a full AU spec crankshaft. There was little doubt that this was the best six cylinder to date - only eclipsed by the AU engine itself.

 

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Posted: Mon Sep 26, 2005 4:39 pm 
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Ahh i was close thou... :roll:

 

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Posted: Mon Sep 26, 2005 5:51 pm 
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Actually,

AU Block, Custom Crank, EL Pistons/rods, not sure about the head, but has AU rocker gear and cam is different too.
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Posted: Mon Sep 26, 2005 6:12 pm 
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Posted: Mon Sep 26, 2005 6:27 pm 
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Biggest issue is you have to cut/modify part of the crossmember to get the sump in, because you cannot use an EF sump on an AU,

But i have always wondered if you could just get an EL hybrid sump and put on the AU block and drop it straight in?
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Posted: Tue Sep 27, 2005 6:19 am 
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jeffb wrote:
Actually,

AU Block, Custom Crank, EL Pistons/rods, not sure about the head, but has AU rocker gear and cam is different too.


They are still an EL head, including head gasket and head bolts. They dont seem to do head gaskets as badly as other e-series though.

 

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Posted: Tue Sep 27, 2005 7:17 am 
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head was an EL with au rocker gear, its not an au engine at all really its a bit of a bitsa the block is slightly different
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Posted: Tue Sep 27, 2005 8:03 am 
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Still the nicest pre-AU I6 though! :P

 

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Posted: Tue Sep 27, 2005 8:06 am 
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Thanks guys that clears it up!!

why dont ford have more of these types of motors! Just as something to get its hardcore fans excited about something special!
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Posted: Tue Sep 27, 2005 8:15 am 
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They didn't exactly do it for that reason... It was to do with changing all of the tooling at Geelong to AU spec, before the EL was discontinued.. therefore the 'hybrid' was born.. Most hybrid ELs also got AU paint..

 

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Posted: Tue Sep 27, 2005 8:23 am 
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go amaretto.

 

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Posted: Tue Sep 27, 2005 8:23 am 
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damn i wish i had of got my mums old El. it was an August 98 build (last of them) had i known this then i probably would of got it off her. oh well

 

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