08 DODGE RAM
POWERTRAIN
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THERE’S A NEW KID ON THE BLOCK. THE REVISED — AND VERY REFINED — 4.7-LITER FLEX FUEL V8 POWER PLANT.
As fuel prices fl uctuate, the more important it becomes to turn to other fuel sources than conventional gasoline.
To create the technology that enables the choice, Dodge turned to one of our most popular engines — the 4.7-liter V8 —
to harvest both effi ciency and grain-based E85 ethanol.
It’s built on the same engine block as the previous iteration — and from there, it just gets better. With the same displacement —
yet with greater performance through increased horsepower and torque — the revised 4.7-liter V8 offers Flex Fuel capability,
allowing you the choice between unleaded gasoline, E85 (an ethanol blend made from grain, with far fewer harmful emissions),
or any combination of the two. It is the engine of tomorrow — and it’s available on Dodge Ram 1500 Regular Cab and Quad Cab
®
models today.
Outlined here are the major technical advantages and features of the 4.7-liter Flex Fuel V8. Learn more —
when you visit dodge.com/ram/engine
1 NEW CAMSHAFT DESIGN
The revised 4.7-liter utilizes a modifi ed camshaft
with newly designed lobes; the result is a cleaner
burn sequence in the fi ring process that increases
power utility while reducing emissions.
2 MORE CAMSHAFT STRENGTH
It’s not only modifi ed in shape, but increased
in strength. With higher stiffness requirements,
we’ve determined that SADI — Selectively
Austempered Ductile Iron — works best.
3 NEW DUAL MASS VIBRATION DAMPER
Another modifi cation with direct benefi ts to the
drive — and driver: the new vibration damper
contributes to further lessening of NVH — noise,
vibration, and harshness.
4 DUAL SPARK-PLUG DESIGN
Applying two spark plugs per cylinder started with
the 5.7-liter HEMI
®
V8 — but the effi ciencies were
too persuasive to ignore: more effi cient burning
of fuel, with reduced emissions and better idle.
5 FUEL CALIBRATION
We learned from the best — so the fuel calibration
on the revised 4.7-liter Flex Fuel V8 employs the
same strategy as the legendary 5.7-liter HEMI
®
V8.
6 MODIFIED EXHAUST MANIFOLD
It’s all about fuel effi ciency, which is why we modifi ed
the actual geometry to the exhaust manifold,
resulting in improved, less-restricted exhaust fl ow.
7 FORGED STEEL CONNECTING RODS
It’s a performance issue, which is why the steel
connecting rods in the 4.7-liter Flex Fuel V8 are forged,
resulting in an optimized strength-to-weigh ratio.
8 FLOATING PISTON PINS
Our design utilizes “fl oating” technology —
engineering that translates into durability by
improving the wear resistance of both the piston
pin and the piston itself.
9 EXHAUST MANIFOLD GASKETS
We look for durability everywhere we can. Even
the exhaust manifold gaskets command attention,
which is why the 4.7-liter gaskets are composed of
multilayered steel with integrated heat shields.
•
IMPROVED EXHAUST GAS RECIRCULATION
The revised 4.7-liter Flex Fuel V8 utilized every
opportunity to retain energy. Part of the exhaust gas
goes into the EGR — Exhaust Gas Recirculation; we’ve
addressed that, too, with a modifi ed valve and all-new
EGR tube for better fl ow and improved emissions.
No deductible. Non-Transferable. Not available on
SRT, diesel vehicles, and certain fl eet vehicles.
See dealer for a copy of limited warranty and details.
THE 2008 RAM INCLUDES
A LIFETIME POWERTRAIN LIMITED WARRANTY.
Here’s performance measured in miles covered — and in barrels of oil saved. While giving you
a choice of fuels, the revised 4.7-liter Flex Fuel V8 also generates its own brand of energy:
a long, fl at torque “curve” is ideal for most common work applications. Horsepower is “slow hill”:
outstanding acceleration from take-off to highway cruising. Factor in an increased compression
ratio (9.8:1), aluminum cylinder heads, and aluminum pistons. All contribute to effi ciency.
310 horsepower @ 5,650 rpm
330 lb-ft of torque @ 3,950 rpm
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