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345 HEMI engine

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345 HEMI V8
Engine
Manufacturer Chrysler
aka 5.7 litre HEMI
Type Gasoline / Petrol
Production/Introduction 2002 - present
Status In Production
Displacement 345 cu. in
Aspiration naturally aspirated
Configuration V
Cylinders 8
Fuel System Sequential, multi-port, electronic, returnless
Lubrification indicate the engine's type of lubrification
Output 345 hp @ 5400 rpm
375 lb-ft. of torque @ 4200 rpm
Bore 3.92 x 3.58 in
Stroke 99.5 x 90.9 mm
Compression 9.6:1
In. Valves in inches
Ex. Valves in inches
Firing Order Firing order of cylinders
Left Bank Write which cylinders are in this bank (write N/A if it it is inline)
Right Bank (same as above)
Length in inches
Diameter in inches
Width in inches
Height in inches
Dry Weight 485 lb ( kg)
Fuel Consumption city/highway (mpg & km/L)
Emission/s CO: g/km
CO2: g/km
NOx: g/km
Hydrocarbon: g/km
Particulate: g/km
Chief Engineer write here

The 5.7 liter, 345 cid HEMI V8 is the first HEMI designed engine used in 30 years. Making its debut in 2002 in the Dodge Ram 2500 and 3500 models. Since then it has been used in several RWD Chryslers, Dodges and Jeeps such as the 300C, Charger, Challenger, Magnum, Grand Cherokee and Commander. The Hemi is smaller, faster, and more economical than the 360 it replaced. It also features cylinder deactivation, which stops sending fuel to four of the cylinders when V8 power isn’t needed. The new Hemi appears to use 5W20 motor oil - a specification that is expected to be widely adopted, but which is still not widely available. Chrysler engineer Tom Hoover, who is associated with the 426 Hemi, told Hot Rod that he had discussed the Elephant Engine's design with new-Hemi engineers. At least two of his suggestions, raising the camshaft (which let them use shorter pushrods, reducing valve train inertia, and have simpler exhaust rocker arms), using twin spark plugs for cleaner running, and adding squish area (to make light load/low speed efficiency better and reduce emissions) were immediately adopted. Hoover emphasized that what they had learned from the original Hemi was used in the new version.

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image (between 170-190 pixels)
HEMI

Chrysler LLC


Chrysler | Dodge | Jeep | Plymouth | DeSoto | GEM


Current

HEMIs: 345 cid (5.7 liter) · 370 cid (6.1 liter) · 392 cid (6.4 liter)

Historic

HEMIs: 241 cid · 259 cid · 270 cid · 276 cid · 291 cid · 315 cid · 315 cid · 330 cid · 331 cid · 341 cid · 354 cid · 392 cid · 426 cid · 472 cid · 528 cid

Racing

HEMIs:


Mopar · SRT


Chrysler Corporate website An engine owned Chrysler LLC


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