HK wrote:
Richard Casady wrote:
On Tue, 02 Jun 2009 10:56:26 -0500, Vic Smith
wrote:

Main reason for DOHC is car geeks buy them.
That's pretty much it.
You can get into all kinds of arguments about valve train slack,
aspiration, cylinder head combustion gas flow, better 60-70 mph
passing speeds, etc.
But the reason they sell is car geeks buy them.

Car geek and Lincoln do not go on the same page.

Casady


Work a stain that looks like jesus on them, and then sell 'em on eBay
for $1000 each.


Whoops. Wrong message.

On Tue, 02 Jun 2009 14:46:45 -0400, BAR wrote:

sn't the stanard 5.4L three valves per cylinder now?

Maybe they are now, but ours has four. Our Aggrivator is an 02.
Cadillac had the 32 valve Northstar, and Lincoln had to have the same.
The thing has some wood accents, very nice walnut, on the steering
wheel, a bit on the dash and doors. So I call it the Sliverado. It is
a truck, as is another vehicle with a similar name.

Casady

"Richard Casady" wrote in message
...

What they did that was guaranteed fatal was offer bad product. Lincoln
offered an SUV based on the Ford F-150 truck. So far so good, although
the Navigator rides like the soft sprung truck it is. My question is
why does it need an expensive four cam 32 valve motor? It is no more
powerful than a pushrod motor the same size.


I don't know about that.

My wife drives an '08 Navigator. I drive an '08 Ford F-250. Both have
the 5.4L engine, but hers is the 32 valve variety and is rated higher in
horsepower. It is very noticeable. Agreed, our transmission are different
..... the Navigator has the regular Ford transmission that is used in the
F-150 series. My truck has the newer "TorqueShift" transmission that are
used in the Super Duties and are designed for towing.

But, her Navigator has a lot more "pick-up" than my truck.

I think I've mentioned this before, but her Navigator is really a very nice
vehicle to drive, unlike the earlier versions that were too sloppy and
underpowered. Her first was a 2001 model (I think) and I used to joke that
it needed a bow thruster to maneuver. Her second was a 2006 and was much
better. The '08 is much, much better than both the others.

She skipped the '04 model and bought one of those Lincoln Mark something
pickup trucks instead.
She liked it, but went back to the Navigator.

Eisboch