Dodge Hellcat Wiki

The Dodge Challenger SRT Hellcat is a top efficiency variant of the Challenger provided with a supercharged 6.2-liter HEMI engine rated at 707 hp (527 kW) and 650 lb⋅feet (881 N⋅m) of torque. The Demon is a restricted manufacturing huge frame and extreme (drag race stage) efficiency variant of the already prime performance Challenger SRT Hellcat.The 2017 Dodge Challenger SRT Hellcat is an American two-door muscle sports automobile manufactured by means of Dodge. The 2017 type is an updated version of the 2015 type that got here with a few changes to its infotainment system. The SRT Hellcat is part of the 3rd technology Dodge Challenger with its manufacturing launched in 2008.Chrysler Hemi Hellcat, a supercharged engine choice of the next cars . Dodge Charger SRT Hellcat; Dodge Challenger SRT Hellcat; Jeep Grand Cherokee SRT Trackhawk; Melling Hellcat, a sports automobile; Other uses. Mary Todd Lincoln, nicknamed "Hellcat"; Hellcat Swamp, a bit of the Parker River National Wildlife Refuge; See also. The Cat from Hell", a brief tale through Stephen KingThe Dodge Charger SRT Hellcat '15 is a highway automotive produced by means of Dodge. It first seems in Gran Turismo Sport. 1 Colors 2 In-game description 3 Acquisition 3.1 GT Sport 4 Notes Eleven colors are available for this automobile: Redline Red Tri-Coat Pearl Torred Plum Crazy Jazz Blue Pearl B5 Blue Pearl Ivory Tri Coat Pearl Bright White Clear Coat Billet Silver Metallic Granite Crystal Metallic Pitch BlackThe 2020 Dodge Challenger SRT Hellcat Redeye Express as noticed in the game. Type. Unknown. Seats. Unknown. 0-60. Unknown. Top Speed. Unknown. Purchase Price. Unknown. Sell Price. 87% of purchase price. Additional information. Last edited. 02/15/2021. 1/1. Add photograph. The 2020 Dodge Challenger SRT Hellcat Redeye Express is a automobile deliberate to be added to

Dodge Challenger SRT Hellcat | THE CREW Wiki | Fandom

Specialty: Able to reach speeds of as much as 204 miles in step with hour, some believe this to be the arena's most robust sedan. With a supercharged HEMI ® V-8, wide gearing, and an 8-speed transmission with over 700hp, this cat provides new which means to the time period "family sedan."The DODGE CHALLENGER SRT HELLCAT is a "pony car" that is more tough than the normal DODGE Challenger, it has a supercharged 6.2-liter HEMI engine rated at 707 hp (527 kW) and 650 lb·toes (881 N·m) of torque. The Challenger Hellcat has a power to weight ratio of 2.81 kg (6.19 lb) per horsepower.The Dodge Challenger SRT Hellcat is a top efficiency variant of the Challenger provided with a supercharged 6.2-liter Hemi engine rated at 707 hp (527 kW) and 650 lb⋅ft (881 N⋅m) of torque. This engine may be available in the Dodge Charger SRT Hellcat full-sized sedan, the Jeep Grand Cherokee Trackhawk SUV, and as the Hellcrate engineThe Dodge Charger SRT Hellcatis a high-performance variant of the 2015 facelifted Dodge Charger Sedan. 1 Overview 2 Asphalt Street Storm Racing 2.1 Summary 2.2 Performance The 2015 Dodge Charger SRT Hellcat was once revealed on 13 August 2014 prior to being shown at theWoodward Dream Cruise, and was once unveiled at the 2014 Kuala Lumpur International Motor Show in November. Present for the rite

Dodge Challenger SRT Hellcat | THE CREW Wiki | Fandom

Hellcat - Wikipedia

Rear-Wheel Drive The 2015 Dodge Challenger SRT Hellcat, abbreviated as Challenger '15, is a RWD muscle automobile by way of Dodge featured in Forza Motorsport 6 and all next instalments. It is featured in Forza Street as a part of the May Spotlight Event.2021 Dodge Durango SRT Hellcat; 2021- Ram 1500 TRX; 6.2 Demon. The Demon model of the Hemi V8 features a lot of enhancements over the Hellcat variant. It is fitted with a larger, 2.7 L twin-screw supercharger, as well as strengthened reciprocating elements, a brand new camshaft, and a number of other different valvetrain upgrades. With these enhancements, the2021 Dodge Durango SRT Hellcat: A 710-HP SUV That Tops Out at 180 MPH. It can also tow 8,seven hundred pounds, but most probably now not at a greenback eighty. READ NOW. RELATED.The Dodge Challenger SRT Demon comes with the 6.2 litre Hemi V8 and a 2.7 litre supercharger that has spice up pressures as much as 24-and-a-half psi. No guide transmission, handiest an eight-speed automatic, and the driveshaft, differential and axle have all been upgraded from the Hellcat.Save cash these days by way of buying groceries the most productive collection of Used Dodge Challenger SRT Hellcat at Search from 379 Used Dodge Challenger cars for sale, including a 2018 Dodge Challenger SRT Hellcat, a 2019 Dodge Challenger SRT Hellcat, and a 2020 Dodge Challenger SRT Hellcat.

Chrysler Hemi engine

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For an overview of Hemi engines usually, see Hemi engine. Early Hemi in a 1957 Chrysler 300C The Chrysler Marine Hemis have been common in picket boats all the way through the Fifties and 60s.

The Chrysler Hemi engines, known by means of the trademark Hemi, are a series of American I6 and V8 fuel engines built by Chrysler with hemispherical combustion chambers. Three different types of Hemi engines were built via Chrysler for vehicles: the first (referred to as the Chrysler FirePower engine) from 1951 to 1958,[1] the second one from 1964 to 1971, and the 1/3 beginning in 2003. Although Chrysler is maximum known with using "Hemi" as a marketing time period, many other auto producers have incorporated an identical designs.

During the Seventies and Eighties, Chrysler also used the Hemi title for his or her Australian-made Hemi-6 Engine and implemented it to the 4-cylinder Mitsubishi 2.6 L engine put in in quite a lot of North American market vehicles.


Main article: Hemi engine

A hemispherical cylinder head ("hemi-head") offers an effective combustion chamber with an excellent surface-to-volume ratio, with minimum warmth loss to the head, and allows for two huge valves. However, a hemi-head allows no more than two valves in step with cylinder, and those massive valves are necessarily heavier than in a multi-valve engine. The intake and exhaust valves lie on opposite sides of the chamber and necessitate a "cross-flow" head design. Since the combustion chamber is a partial hemisphere, a flat-topped piston would yield too low a compression ratio except an overly long stroke is used, so as to reach the specified compression ratio the piston crown is domed to protrude into the head at top useless middle. The result's a combustion chamber within the shape of the gap between the place the domed piston stops and the dome form in the head receiving it.

The hemi-head design places the spark plug at or near the center of the chamber to advertise a powerful flame front. However, if the hemi-head hemisphere is of equal diameter to the piston, there may be minimum squish for right kind turbulence to mix fuel and air completely. Thus, hemi-heads, because of their lack of squish, are more delicate to gasoline octane rating; a given compression ratio will require the next octane rating to steer clear of pre-detonation in a hemi engine than in some standard engine designs such because the wedge and tub.

The hemi head all the time has intake and exhaust valve stems that point in different instructions, requiring a large, extensive cylinder head and sophisticated rocker arm geometry in each cam-in-block and single overhead cam engines (dual overhead cam engines may not have rocker hands). This provides to the overall width of the engine, proscribing the cars through which it can be put in.

Significant demanding situations within the commercialization of engine designs utilizing hemispherical chambers revolved around the valve actuation, specifically tips on how to make it efficient, efficient, and reliable at a suitable cost. This complexity was once referenced early in Chrysler's development in their Nineteen Fifties hemi engine: the top used to be referred to in company advertising as the Double Rocker Shaft head.[2]

World War II

Chrysler developed their first experimental hemi engine for the Republic P-47 Thunderbolt fighter airplane. The XIV-2220 engine used to be an inverted V16 rated at 2,500 hp (1,860 kW). The P-47 was once already in production with a Pratt & Whitney radial engine when the XIV-2220 flew successfully in trials in 1945 as a conceivable upgrade, but the conflict was winding down and it didn't cross into production. However, the workout gave Chrysler engineers valuable research and building enjoy with two-valve hemi combustion chamber dynamics and parameters.

In addition to the plane engine, Chrysler and Continental labored in combination to expand the air-cooled AV-1790-5B V12 Hemi engine used within the M47 Patton tank.

First generation: FirePower

Chrysler implemented their military enjoy with the hemispherical combustion chamber to their first overhead-valve V8 engine, launched beneath the title FirePower, no longer "Hemi," in 1950 for the 1951 model year. The first version of the FirePower engine had a displacement of 331 cu in (5.4 L) and produced 180 bhp (134.2 kW). Eventually, three of the 4 Chrysler divisions had their very own model of the FirePower engine, with different displacements and designations, and having nearly no portions in common. This loss of commonality was once due partly to the 3 engine variations the usage of different bore pitches (the center-to-center distance between adjacent cylinders). Chrysler and Imperial called their variations the FirePower. DeSoto called theirs the FireDome. Dodge had a smaller version, known as the Red Ram. Only Plymouth didn't have a version, but retained the Dodge poly-head engines. There was once no Plymouth hemi engine till 1964.

Briggs Cunningham used the Chrysler version in a few of his race cars for international motorsports. A Chrysler-powered Cunningham C-5R won its magnificence in 1953. Cunningham switched clear of these designs in 1959 when Chrysler briefly abandoned the hemispherical idea in prefer of the wedge-head B engine until 1964.

Collectively, the 1951-'58 Hemi engines are actually usually referred to as first-generation Hemi engines,[3] and the crowd can also be known by means of the rear-mounted distributor and the spark plugs in a row down the center of large valve covers.

1951 Plymouth Hemi V6

There were plans in 1951 for a Plymouth Dual Overhead Cam Hemi V6 displacing 235 Cubic Inches designed by Chrysler's Powerplant Research and Engine Design division. It used to be supposed to be a formidable, fuel-efficient choice to Ford's V8 and to switch Plymouth's venerable flathead 6. The Plans had been scrapped due to construct costs and as a result of the then unusual design.[4]

Chrysler and Imperial

All Chrysler FirePower engines are oversquare; i.e their bore is greater than their stroke.[5]


This first FirePower engine, used from 1951 to 1955, has a bore of three.8125 in and a stroke of three.625 in for a piston displacement of 331 cu in (5.4 L), and a deck height of 10.32" ("low deck"). The bore pitch, shared by all Chrysler FirePower engines, was 4.5625", the largest of any 1st era hemi engines. Most used a two-barrel carburetor and produced 180 bhp (134 kW), with the well-known exception of the 1955 Chrysler C-300 supplied with twin Carter WCFB four-barrel carburetors and rated at Three hundred hp.[6][7]

The 331 engine was once used within the following packages:

1951–1955 Chrysler New Yorker 1951–1954 Chrysler Imperial and 1955 Imperial[a] 1951 Chrysler Saratoga (optional) 1952 Chrysler Saratoga Club Coupe (optional) 1952 Chrysler Imperial Parade Phaeton 1955 Chrysler C-300 The Chrysler air raid siren. At 138 decibels, it's the loudest siren ever made.[8]354

The 354, released in 1956, had a bore of 3.9375 in and stroke of 3.625 in, and the similar 10.32" low deck peak. The 300B engine was rated at 340 bhp (254 kW), whilst the New Yorker and Imperial 354 engine configuration produced 280 bhp (209 kW). For the 300B an not obligatory 355 hp (265 kW; 360 PS) model was to be had, making it the first American V8 to be rated at one horsepower per cubic inch. Note that was once before 1972, horsepower was once SAE gross. After 1972, horsepower is SAE net. The 354 used to be additionally modified. The hemi used to be optimized for heavy-duty truck provider. These have been to be had with one or two four-barrel carburetors, and had been introduced in Dodge's heaviest-duty fashions as the 'Power Giant V-8' from 1957 via 1959; they have been the most important of four hemi truck engines presented by way of Dodge within the Fifties. The 354 used to be also presented in certain fashions with polyspheric heads quite than hemi heads. The combustion chambers on these had similarities to each hemi and wedge heads, however have been closer in weight to wedge heads. Thus, both 354 poly and 354 hemi V8 engines have been variously to be had in 1957.

The 354 engine was once used within the following packages:

1956 Chrysler New Yorker 1956 Chrysler 300B 1956 Imperial Custom & Crown[a] 1957 Dodge D-501 1957–1959 Dodge C Series Pickup392

The 392 raised-deck engine launched in 1957 had a 4.00 in (101.6 mm) bore and 3.906 in (99.21 mm) stroke. The precise displacement is 392.67 cu in (6,435 cc). The deck top, at 10.87 in (276.1 mm), was

1⁄2 in (13 mm) taller than that of the previous blocks. Because its deck was taller, the heads were forged with wider intake ports so that earlier manifolds could be used with the brand new heads on the new taller block. For 1958, Chrysler presented the 392 in two configurations: 325 bhp (242 kW) with 9.25:1 compression and 345 bhp (257 kW) with 10:1 compression, each with a unmarried four-barrel carburetor. A twin four-barrel version of the 392 to be had within the 1957-58 Chrysler 300C & 300D vehicles was rated at 375 bhp (280 kW); the 300D, and some marine and commercial engines, used a (now rare) adjustable rocker.[9] An extraordinarily rare option to be had on the 1958 300D used to be Bendix "Electrojector" fuel injection, with which the 392 used to be rated at 390 bhp (291 kW). Due to reliability issues of the primitive onboard pc which controlled the injection system, on the other hand, 15 of the 16 300D vehicles constructed with the gasoline injection possibility had been recalled and retrofitted with carburetors.[10]

The 392 engine was once used within the following programs:

1957–1958 Chrysler New Yorker 1957–1958 Imperial Custom, Crown, and LeBaron[a] 1957 Chrysler 300C 1958 Chrysler 300D 1958 Facel Vega Excellence (EX)

In the late Fifties and early Sixties, drag racers discovered the 392 to be an impressive engine and persevered to run them competitively into the 1970s. Usual colour of the block used to be silver.[11]

DeSoto New DeSoto Fire Dome engine at 1952 Los Angeles International Automobile Show.

DeSoto's Hemi engines had been known as Fire Dome.


In 1952, DeSoto introduced its version of the FirePower with a bore of three.625 in (92.08 mm) and stroke of 3.344 in (84.94 mm), for a displacement of 276.1 cu in (4.5 L). The bore pitch, shared through all DeSoto FirePower engines, was once 4.3125 in (109.54 mm).[12] Power output was 160 bhp (119 kW). It used to be a sizzling supplier, with 50,000 cars using the engine until it was once changed in 1954.


An building up in displacement to 290.8 cu in (4.8 L) was once made for 1955 via increasing the bore to 3.72 in (94.5 mm).[12]


The DeSoto engine was enlarged for 1956 to 329.9 cu in (5.4 L). Bore was the same because the 291 at 3.72 in (94.5 mm), however stroke was once increased to three.80 in (96.5 mm) and a taller (raised-deck) block was once used.[12]


Displacement used to be larger again for 1956 (DeSoto Adventurer most effective) and 1957 (Firedome and Fireflite fashions) to 341.1 cu in (5.6 L). Bore used to be now 3.78 in (96.0 mm) with stroke last at 3.80 in (96.5 mm).[12] The DeSoto Adventurer produced 343 bhp (256 kW) the usage of twin Carter WCFB four-barrel carburetors—a couple of horsepower according to cubic inch. The 1956 DeSoto Adventurer was the premiere named high-performance model—the DeSoto identical of the Chrysler 300—the use of twin Carter WCFB four-barrel carburetors. The Adventurer engine for 1956 used a displacement of 341 CID (3.78" bore by 3.80" stroke) and had a compression ratio of 9.5:1, the use of a unique hydraulic camshaft profile.


The biggest DeSoto engine for 1957 used to be the DeSoto Adventurer offering 344.6 cu in (5.6 L) with square bore and stroke dimensions of three.80 inches. The DeSoto Adventurer used twin Carter WCFB four-barrel carburetors for a rating of 345 bhp (257 kW), again producing one horsepower in line with cubic inch utilizing a an identical intake manifold to the 1956 341 Adventurer and a similar camshaft. The compression ratio remained at 9.5:1.


Dodge's Hemi used to be offered in 1953 as the Red Ram.[5] Dodge did not have a V8 engine until one was developed particularly for the line in 1953 in line with the 1951 Chrysler hemi design, however downsized for these smaller automobiles. They have the smallest bore middle distance of any hemi engine at 4.1875 in (106.4 mm). They do not share any primary dimensions or components with the larger Chrysler and DeSoto hemi engines, or the Plymouth A engines. From 1955 to 1958 (see 1956 D500 Dodge D-500 vehicles and packages: early performance cars) lower-performance versions of the Dodge hemi had been offered via substituting much less complicated poly (unmarried rocker shaft) heads and valve teach portions, including one variant simplest constructed as a poly (259"). These have been utilized in low-line 1955-Fifty eight DeSotos and Dodges, and 1955-Fifty six high-line Plymouths.

Dodge Trucks advertised their model of the Hemi underneath the identify PowerDome.[13][14]


Dodge introduced the 241.3 cu in (4.0 L) engine in 1953.[5] Bore was once 3.4375 in (87.3 mm) and stroke was 3.25 in (82.6 mm). With a low compression ratio of seven.0:1 (in 1953 and for the 1954 Meadowbrook), the 241 produced 140 bhp (104 kW).[15] For 1954, the extra senior Dodges won 150 bhp (112 kW) thanks to a higher 7.5:1 compression ratio.[16] This engine isn't the same because the Plymouth 241, which had polyspheric, no longer hemi heads. The 241 simplest lasted two years, being replaced through the 270 for 1955.[16]


The D553 1955/1956 Dodge Red Ram Hemi 270 displaced 270 cu in (4.4 L) and was utilized in top rate 1955 and 1956 Dodge automobiles. Bore was 3.625 in (92.1 mm) and stroke used to be 3.25 in (82.6 mm). It was now not the same as the 270 poly-head. In the Dodge Coronet, operating 7.6:1 compression ratio, the 270 produced 183 bhp (136 kW). In upper trims just like the Dodge Royal, the "Super Red Ram" ran the similar compression ratio but with a four-barrel carburetor produced 193 bhp (144 kW).[17]


For 1956, Dodge larger the displacement to 315 cu in (5.2 L) with a longer 3.80 in (96.5 mm) stroke and a taller raised-deck block and now with a polyspheric heads—not a Hemi. But the non-compulsory high-performance D-500 version of this engine had a four-barrel carburetor and a bigger valved Dodge hemispherical combustion chambered head. Also, a "race only" bundle known as the D-500-1 or DASH 1 was to be had with a unique aluminum dual four-barrel intake that sported a pair of Carter WCFB carburetors very similar to those on the Chrysler 300B and DeSoto Adventurer. This engine used the same cylinder heads as the base D-500 model.

The D-501 in 57 was once the Chrysler 354 engine, not a Dodge-based engine.


Dodge released a 325 cu in (5.3 L) engine for 1957. The engine used a three+11⁄16 in (93.7 mm; 3.69 in) bore and 3.80 in (96.5 mm) stroke. The base engine providing was once now a polyspheric chambered head referenced as 'KDS', and the next functionality 325 was presented with hemi heads because the 'KD-500'. Again there was once a low volume providing of a 'KD-500-1' with dual four-barrel carburetors. All engines now, alternatively, had hydraulic camshafts despite the fact that the hemi headed choices sported "dimples" in the valve covers for mechanical adjuster clearance.

Second era: 426

426426 Hemi engine in a 1966 ChargerOverviewManufacturerChryslerAlso calledElephant engineProduction1964–1971LayoutConfigurationNaturally aspirated V8Displacement426 cu in (7.0 L)Cylinder bore4+1⁄4 in (108.0 mm)Piston stroke3+3⁄4 in (95.3 mm)Block materialCast ironHead subject matterAluminumCast ironValvetrainOHV 2 valves in line with cylinderCompression ratio10.25:1CombustionFuel system2X4 barrel Carter AFB CarburetorFuel typeGasolineOil systemWet sumpDry sumpCooling systemLiquid-cooledOutputPower output425 bhp (317 kW) (Gross)350 bhp (261 kW) (Net)Specific power60.9 hp (45 kW) in keeping with literTorque output490 lb⋅feet (664 N⋅m)DimensionsDry weight843 lb (382 kg)[18]ChronologyPredecessor426 Wedge

The hemispherical head design was once revived in 1964. These were the first engines formally designated Hemi, a reputation Chrysler had trademarked. Chrysler Hemi engines of this technology displaced 426 cu in (7.0 L). Just 11,000 Hemi engines have been in the end produced for consumer sale because of their somewhat excessive price and the sheer size of the engine bay required to suit it in. The 426 Hemi used to be nicknamed the "elephant engine"[19] at the time, a reference to its high power, heavy weight and large bodily dimensions. Its 10.72 in (272.3 mm) deck top and four.80 in (121.9 mm) bore spacing made it the most important engine in racing on the time.

The 426 Hemi of the Sixties was an engine produced for use in NASCAR, as raced in a Plymouth Belvedere in 1964. It was no longer first of all available to the general purchasing public. The 426 Hemi used to be now not allowed to compete in NASCAR's 1965 season because of its unavailability in manufacturing automobiles bought to most people and on account of proceedings by way of Ford regarding its energy. However several particular production versions of the Dodge Dart, the Plymouth Fury, and later, in 1965, the Dodge Coronet, had been produced with aluminum fenders and bumpers for drag racing and made to be had to the general public.

Chrysler introduced the "Street" Hemi in 1966 for its intermediate vary of cars and offered the desired number of Hemi engines to the general public to homologate its use for inventory automotive racing in NASCAR occasions in 1966. The "Street Hemi" was once very similar to the race Hemi but with an inline 2X4-bbl induction system (with automated choke), decrease compression (10.25:1 from 12.5:1) and lower-lift camshaft, with iron exhaust manifolds as an alternative of lighter metal long tube headers.

There had been many differences between the Hemi and the Wedge-head big-block, including main cross-bolted bearing caps and a unique head bolt trend. Although all manufacturers have been conversant in multi-valve engines and hemispherical combustion chambers, including extra valves according to cylinder and designing the complex valvetrain they require have been pricey techniques of making improvements to the high–revolutions according to minute (rpm) respiring of manufacturing vehicles. By canting the angle of the NASCAR-mandated two valves consistent with cylinder, significantly better valves might be used. The Chrysler 426 Hemi and all Chrysler RBs had oversquare bore and strokes. Specifically, the 426 Hemi and 426 Wedge had a bore x stroke of four+1⁄4 in × 3+3⁄4 in (108.0 mm × 95.3 mm).

The 426 Hemi, in "street Hemi" shape, was once produced for shopper automobiles from 1965 through 1971. Hemi-powered Dodge and Plymouth vehicles produced within the mannequin years of 1965 through 1971 have change into collector's items. For example, a 1971 Plymouth Barracuda Convertible provided with the 426 Hemi engine offered at public sale for US .5 million in 2014.[20]

The side road Hemi model used to be rated at 425 bhp (431 PS; 317 kW) at 5000 rpm SAE gross and 490 lb⋅toes (664 N⋅m) at 4000 rpm of torque supplied with a couple of four-barrel Carter AFB carburetors.[21] In precise dynamometer trying out, it produced 433.5 hp (323 kW; 440 PS) and 472 lb⋅toes (640 N⋅m) of torque in purely stock shape.[22] Chrysler's sales literature[23] printed both the gross 425 hp (317 kW; 431 PS) and net 350 hp (261 kW; 355 PS) ratings for 1971.

The boulevard model of the 2G Hemi engine was once used (optionally, in all but the final case) in the following automobiles:

1966–1970 Dodge Coronet/Plymouth Belvedere 1966–1971 Plymouth Satellite 1966–1971 Dodge Charger 1967–1971 Plymouth GTX 1968 Dodge Dart Super Stock 1968 Plymouth Barracuda 1968–1971 Dodge Super Bee 1968–1971 Plymouth Road Runner 1969 Dodge Charger R/T 1969 Dodge Charger Daytona 1970 Plymouth Superbird 1970–1971 Plymouth Hemi 'Cuda 1970–1971 Dodge Challenger 1970 Monteverdi Hai 450

To keep away from confusion with previous (1951–58) and recent Hemi engines, the 426 is also known as the "2G" or "Gen 2" Hemi.[24]

In racing

There were many variations between the racing Hemi's and the road Hemi, including but now not restricted to compression ratio, camshaft, intake manifold, exhaust manifold. Some 1960s NASCAR and NHRA Hemi engines featured magnesium cross-ram consumption manifolds and magnesium oil pans in an attempt to reduce the huge weight of the full engine, along side chain-driven interior dry sump oil programs. Today, aftermarket blocks, heads, intakes, rods, and pistons are normally manufactured from aluminum.

The 426 Hemi also used to be used in NHRA and AHRA drag racing. Its massive casting allowed the engine to be overbored and stroked to displacements inconceivable in the different engines of the day. Top-fuel racing organizers limited the bore spacing of engines until very not too long ago, when under pressure from Ford and other producers, the bore spacing allowed used to be higher to 4.90 in (124.5 mm)—this permits different engines such as the Ford 385 series to begin to compete. The engines according to the old Chrysler design predominate Top Fuel and Funny Car categories due to considerable portions, a large amount of research and development, in addition to decades of enjoy with the problems of the engine's design. In drag racing lately, the engine bears little resemblance to any engine produced by way of Chrysler; it is normally supplied with a big Roots type supercharger and brief particular person exhaust pipes, and fueled with nitromethane. Yet, this variant is used in Top Fuel, Funny Car, and Pro Modified classes.

Third generation: 2003-present

Third Generation Chrysler Hemi2003 5.7 HEMI, the primary yr of the third generation HEMIsOverviewManufacturerChryslerProduction2003-presentLayoutConfigurationV8Displacement5,654 cc (345 cu in)6,058 cc (369.7 cu in)6,166 cc (376.3 cu in)6,407 cc (391 cu in)Cylinder bore99.49 mm (3.917 in)103.00 mm (4.055 in)103.89 mm (4.090 in)Piston stroke90.88 mm (3.578 in)94.59 mm (3.724 in)Block materialCast ironHead materialAluminumValvetrainOHV Sixteen ValveCompression ratio9.5:19.6:110.3:110.9:1CombustionFuel systemSequential multiport gasoline injectionFuel typeGasolineOil systemWet sumpCooling systemWater-cooledChronologyPredecessorChrysler LA engineChrysler PowerTech engineChrysler B engine

The current-production "HEMI" engine heads are flatter and extra advanced than the Fifties–'70s Hemi V8 chamber. The combustion chambers are now not actually hemispherical. It uses a coil-on-plug distributor-less ignition device and two spark plugs per cylinder to shorten flame travel resulting in extra consistent combustion and diminished emissions. Like most of Chrysler's past-model Hemi-head engines, the 5.7 model is rated at roughly one horsepower in keeping with cubic inch (the present engines are SAE web, while the previous Hemi engines have been rated SAE gross). For the 2009 mannequin year power used to be greater to 357-395 horsepower (266-291 kW) and 389-410 lb·toes (527-556 N·m) depending on software. It also accomplished 4% higher fuel financial system. Variable valve timing (VVT) was additionally introduced.

A brand new variable displacement technology referred to as Multi-Displacement System (MDS) is used in some versions which will close off two cylinders on every bank beneath gentle load to beef up gas economic system.

5.7 5.7 Hemi engine

The 5.7 L HEMI was launched for mannequin 12 months 2002 at the Dodge Ram 2500 and 3500 and 2003 on the 1500 model pickup vans to complement the Magnum 5.Nine engine. As of 2004 it used to be the only available gasoline engine in the Ram Heavy Duty. Chrysler later made the 5.7 L Hemi available in all models of the 2004 Dodge Ram, Dodge Durango, the 2005 Chrysler 300C, Dodge Magnum R/T, Jeep Grand Cherokee, the 2006 Dodge Charger R/T, Jeep Commander, the 2007 Chrysler Aspen, and the 2009 Dodge Challenger R/T. For manual transmission programs (Challenger and three/4- and 1-ton Ram pickups), cylinder deactivation is not integrated.

The 5.7 L (345 cu in) Hemi within the Ram delivered 345 hp (257.3 kW) and 375 lb⋅feet (508 N⋅m), however 340 hp (253.5 kW) and 390 lb⋅ft (529 N⋅m) for the 300C and Magnum R/T, which is exactly 100 hp (74.6 kW) greater than the outdated 5.Nine engine. It is a 90-degree V8, 2-valve pushrod design like the past Magnum series engines, displacing 5,654 cc (345 cu in), with a bore of 3.917 in (99.49 mm) and a stroke of three.578 in (90.88 mm).[25]

The 5.7 L Hemi is made at Chrysler's Saltillo Engine plant in Ramos Arizpe, Mexico.

The Hemi was once on the Ward's 10 Best Engines listing for 2003 through 2007, and once more in 2009.

This engine is used in the following automobiles:

2003–Present Ram Pickup 2004–2009, 2011–Present Dodge Durango 2005–2008 Dodge Magnum R/T 2005–Present Chrysler 300C, 300S V8 (2010, 2012-Present) 2005–Present Jeep Grand Cherokee 2006–Present Dodge Charger R/T 2006–2010 Jeep Commander 2007–2009 Chrysler Aspen 2009–Present Dodge Challenger R/T2009 5.7 revisions

Chrysler made quite a lot of revisions to the 5.7 L for the 2009 model yr. The first for all applications is what Chrysler calls Variable Camshaft Timing or VCT. VCT (which is essentially variable valve timing) makes use of an oil keep watch over valve that controls oil go with the flow to a unique camshaft sprocket that accommodates a phasing tool, which depending on the operation of the oil keep an eye on valve both advances or retards camshaft timing.

Cylinder heads had been revised to extend go with the flow. Though the intake manifold has additionally been changed on all packages, it's alternatively mannequin particular. Dodge Ram, non-Hybrid Electric Vehicle (HEV) Chrysler Aspens, and non-HEV Dodge Durango utilize an lively intake manifold with a short runner valve to optimize torque and horsepower. At lower engine rpm the valve is closed, resulting in stepped forward low-end torque from the longer runners. At upper engine rpm the valve is opened, diverting the incoming air into the center of the manifold. The shorter runners result in stepped forward horsepower. Passenger cars, Jeep vehicles, in addition to HEV Chrysler Aspen and HEV Dodge Durango don't use this manifold; as a substitute, these vehicles utilize a passive consumption manifold, which does not have a short runner valve.

Six-speed manual transmission and all Heavy Duty truck programs will fluctuate via not having the Multi-Displacement System (MDS). The new version of the 5.7L has five other camshaft profiles. All will have VCT.

Active intake with MDS Active consumption without MDS Passive intake with MDS Passive consumption without MDS HEV Application (modified version of passive intake with MDS)

Power Numbers

300C: 363 hp (271 kW), 394 lb⋅toes (534 N⋅m) Charger R/T: 370 hp (276 kW), 395 lb⋅ft (536 N⋅m) Challenger R/T Automatic: 372 hp (277 kW), 400 lb⋅feet (542 N⋅m) Challenger R/T 6 Speed Manual: 375 hp (280 kW), 410 lb⋅toes (556 N⋅m) 2009-2012 Ram 1500 Truck: 390 hp (291 kW), 407 lb⋅feet (552 N⋅m) 2013+ Ram 1500 Truck: 395 hp (295 kW), 410 lb⋅toes (556 N⋅m) Ram 2500/3500 Truck: 383 hp (286 kW), 400 lb⋅toes (542 N⋅m) Jeep Grand Cherokee and Jeep Commander: 360 hp (268 kW), 390 lb⋅ft (529 N⋅m) 2011+ Dodge Durango: 360 hp (268 kW), 390 lb⋅toes (529 N⋅m) 2009 Chrysler Aspen and Dodge Durango non-HEV: 376 hp (280 kW), 401 lb⋅feet (544 N⋅m) 2009 Chrylser Aspen and Dodge Durango HEV: 399 hp (298 kW), 390 lb⋅feet (529 N⋅m)6.1 6.1 Hemi engine

The Hemi could also be to be had in a 6,059 cc (6.1 L; 369.7 cu in) version.[26] The engine's bore x stroke is 103 mm × 90.9 mm (4.055 in × 3.579 in) and plenty of different adjustments were made to allow it to produce 425 bhp (317 kW; 431 PS) at 6,200 rpm and 420 lb⋅ft (569 N⋅m) of torque at 4,800 rpm. The engine block is different from the 5.7, with revised coolant channels and oil jets to chill the pistons. A cast crankshaft, lighter pistons and reinforced connecting rods aid durability. A cast aluminium consumption manifold is tuned for high-rpm power and does not come with variable-length generation. Chrysler's Multi-Displacement System isn't used on the 6.1.


2005–2010 Chrysler 300C SRT-8 2006–2008 Dodge Magnum SRT-8 2006–2010 Dodge Charger SRT-8 2006–2010 Jeep Grand Cherokee SRT-8 2008–2010 Dodge Challenger SRT-86.2 Hellcat

For 2015, Chrysler offered an all-new excessive functionality supercharged variant of the Hemi engine, referred to as the Hellcat (named after the Grumman F6F Hellcat).[27] It features the similar 4.09 in (103.9 mm) bore because the 6.4 L Hemi and the similar 3.578 in (90.9 mm) stroke because the 5.7 L, giving it a complete displacement of 6,166 cc (6.2 L; 376.3 cu in).[27] The supercharger is a 2,380 cc (145 cu in) twin-screw IHI unit with integrated price coolers, able to producing 11.6 psi (80 kPa; 0.80 bar) of boost.[28] This engine is rated at 707 bhp (717 PS; 527 kW) at 6,000 rpm and 650 lb⋅feet (881 N⋅m) at 4,000 rpm of torque[27] and has a compression ratio of 9.5:1.[27] This engine was probably the most robust engine produced by way of Chrysler as well as essentially the most powerful production engine ever in a muscle car till the Dodge Demon used to be presented.[28] This engine isn't equipped with Chrysler's Multi-Displacement System.[28] In 2017, Mopar introduced that it will promote it as a crate engine underneath the title Hellcrate.[29] A Redeye model with 797 hp (808 PS; 594 kW) debuted in the Dodge Challenger in 2019, adopted by the Dodge Charger in 2021.


2015–Present Dodge Challenger SRT Hellcat 2015–Present Dodge Charger SRT Hellcat 2018–gift Jeep Grand Cherokee Trackhawk 2021 Dodge Durango SRT Hellcat 2021- Ram 1500 TRX6.2 Demon

The Demon model of the Hemi V8 features a number of improvements over the Hellcat variant. It is fitted with a larger, 2.7 L twin-screw supercharger, in addition to bolstered reciprocating elements, a brand new camshaft, and several other different valvetrain upgrades. With those improvements, the Challenger SRT Demon is rated at 808 horsepower on 91-octane pump fuel, and 840 horsepower when working on 100-octane unleaded racing gas. Cooling is aided through a purposeful Air-Grabber hood scoop, as well as a novel price cooling gadget that uses the air-conditioning coolant to lower the intake price air temperature. High-speed launches are assisted by way of a manufacturing unit line-lock device, which permits the auto to perform a burnout to warm the rear tires, the primary transmission brake to be put in in a production automobile, and the Torque Reserve Launch System.


2018 Dodge Challenger SRT Demon6.4 392 CID V8 HEMI Engine 392 HEMI badge

Chrysler displayed a bigger and more powerful 392-cubic-inch (6.Four L) HEMI in 2005 with a conservative factory-rated output of 525 hp (391 kW; 532 PS) and 510 lb⋅feet (691 N⋅m) torque. It is equipped with high-strength cast aluminium alloy pistons. This engine has been to be had since 2007, as a crate engine under the name 392 HEMI.[30]

The manufacturing model of the 392 HEMI used to be launched within the 2011 Dodge Challenger SRT8 with variable camshaft timing in addition to MDS in vehicles with computerized transmissions.[31] The new 392 HEMI, codenamed "Apache," is in accordance with the third-generation 5.7L HEMI, codenamed "Eagle," and stocks few parts with the 392 crate engine.

In overdue 2009 Chrysler has mentioned the brand new engine will likely be to be had within the subsequent generation SRT8 Dodge Charger, Chrysler 300, and Jeep Grand Cherokee.

Special-Edition Chargers and Challengers supplied with this engine, and the engines themselves, will endure "392 HEMI" badging in commemorative reference to the First-Generation HEMI Engine of the same piston displacement.[32][33][34] In different packages, the engine is badged as "6.4L HEMI". Output is 470 hp (350 kW) and 470 lb⋅feet (637 N⋅m);[30][34]

For the 2015 mannequin yr, horsepower used to be greater by means of 15, to 485 hp (362 kW) and 475 lb⋅feet (644 N⋅m), within the Charger and Challenger SRT 392 (2015-2018) and R/T Scat Pack (2015-Present) Models; the Grand Cherokee SRT best noticed a 5 bhp building up.

The Chrysler Three hundred SRT (Overseas) nonetheless remained the similar Horsepower 470 hp (350 kW) and Torque 470 lb⋅feet (637 N⋅m) because the 2012-2014 Model Years.

This engine is to be had in each the Dodge Charger and Challenger SRT 392 (2015-2018), including R/T Scat Pack Models (Chrysler's Main Affiliated Trim Models now not related to the SRT Division)[35] The Jeep Grand Cherokee SRT, The Dodge Durango SRT (2018-Present), and the Chrysler 300 SRT (Available in Overseas Markets from 2015-Present).

In 2014, Chrysler chose to change the SRT8 moniker to SRT, doing away with the Eight which was a cylinder quantity nomenclature. From thereon, this was put into effect for all SRT fashions from all of Chrysler's divisions.

HD Truck and Cab Chassis version

Starting in mannequin year 2014, the Ram 2500 and 3500 vehicles, and Ram 3500, 4500, and 5500 Cab Chassis introduced a revised version of the 6.4L, being re-tuned for higher gas financial system and a power band extra suitable for hauling and towing than the all-out power of the SRT Version. In 2016 it replaced the 5.7L as the standard gas engine in the Cab Chassis fashions.

Power Numbers

2500 and 3500 Pickup, 3500 SRW Cab Chassis with RFE transmission: 410 hp (306 kW), 429 lb⋅ft (582 N⋅m) 3500 Mega Cab, 3500 DRW Cab Chassis with RFE transmission, 3500 SRW/DRW with Aisin Transmission: 370 hp (276 kW), 429 lb⋅feet (582 N⋅m) 4500 and 5500 Cab Chassis: 366 hp (273 kW), 429 lb⋅toes (582 N⋅m)Mopar 426 HEMI (2012–present) The 426 HEMI in a Dodge Charger Redline

At the 2012 North American International Auto Show in Detroit, Dodge debuted a Mopar Customized Dodge Charger "Redline" that featured a contemporary 426-cubic-inch (7.Zero L) HEMI V8 engine rated at 590 hp (440 kW; 598 PS).[36][37][38]


From February to April 2005, DaimlerChrysler hosted a "What Can You HEMI?" contest promoting choice makes use of of the HEMI engines. The most sensible 5 finalists include HEMI Snowblower, HEMI-Go-Round carousel, HEMI on Ice ice resurfacer, HEMI-Shredder, HEMI Big Wheel, i.e. the kid's tricycle of the 1970s.[39][40][41] The winner was the HEMI Big Wheel, which had a 5.7 L Hemi in the again that used to be put in backwards, thus opposite became the one forward tools. Plate metal was once the principal subject matter, while a rolled tube of steel needed to be utilized for the front tire as there were no such tires 4-foot (122 cm) in diameter that had been as slender as needed for this challenge.[42]


^ a b c Imperial become a separate make and department unto itself, starting in 1955, and no longer bore the "Chrysler" title.


^ .mw-parser-output .quotation qquotes:"\"""\"""'""'".mw-parser-output .id-lock-free a,.mw-parser-output .quotation .cs1-lock-free abackground:linear-gradient(transparent,clear),url("//")right 0.1em middle/9px .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .quotation .cs1-lock-registration abackground:linear-gradient(clear,clear),url("//")right 0.1em middle/9px .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription abackground:linear-gradient(clear,clear),url("//")right 0.1em center/9px .cs1-subscription,.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted; .cs1-ws-icon abackground:linear-gradient(clear,clear),url("//")right 0.1em middle/12px code.cs1-codecolor:inherit;background:inherit;border:none; .cs1-hidden-errorshow:none; .cs1-maintdisplay:none;color:#33aa33; .cs1-kern-left,.mw-parser-output .cs1-kern-right,.mw-parser-output .citation .mw-selflinkfont-weight:inherit"1951 Chrysler FirePower Advantages". Retrieved January 16, 2014. ^ "A history of the origins of the American Hemi". Archived from the unique on January 24, 2008. Retrieved June 30, 2010. ^ ^ ^ a b c "Hemi Engine Database". Retrieved January 16, 2014. ^ ^ ^ "Air Raid Sirens FAQ". ^ Hot Rod Magazine on-line (retrieved March 9, 2018) ^ Flory, Jr., J. "Kelly" (2008). American Cars, 1946-1959: Every Model, Year by way of Year. McFarland. p. 899. ISBN 978-0-7864-3229-5. ^ Hot Rod Magazine on-line (retrieved March 9, 2018) ^ a b c d Parker, Lloyd. "All Engines used in Chrysler, Plymouth, and Dodge vehicles". Retrieved January 16, 2014. ^ ^ ^ Lee, John (1990). Standard Catalog of Chrysler, 1924-1990. Iola, WI: Krause Publications. p. 269. ISBN 0-87341-142-0. ^ a b Lee, p. 270 ^ Lee, p. 271 ^ "Hemi Specifications". Retrieved September 8, 2018. ^ Zatz, David; Boelhouwer, Steve. "Dodge - Plymouth - Chrysler 426 Hemi: the Elephant Engine". Allpar LLC. Retrieved September 16, 2015. ^ Mecum Auctions (June 14, 2014). "MECUM SOLD .5 Million - 1971 Plymouth Hemi Cuda Convertible" – by the use of YouTube. ^ "1969 Dodge Charger R/T 426 V-8 Hemi 4-speed Super Track Pak". Retrieved June 24, 2018. ^ "Hemi Dyno Test". Retrieved January 16, 2014. ^ "1971 plymouth rapid transit system brochure". Archived from the unique on January 18, 2015. ^ "Kolosso Chrysler Dodge Jeep Ram - New Chrysler, Dodge, Jeep, Ram dealership in Appleton, WI 54914". March 14, 2016. Archived from the original on March 14, 2016. ^ "Chrysler Hemi 5.7 Liter 345ci - Hello Hemi". January 30, 2004. Retrieved April 4, 2014. ^ "2007 Chrysler 300C SRT8 - Feature Availability" (PDF). Retrieved January 16, 2014. ^ a b c d Magda, Mike. "SRT Engineer Explains How Hellcat Hemi Pulls 707 Horsepower". Retrieved November 4, 2014. ^ a b c "Chrysler's new Hellcat V8 gets 707-hp SAE rating". SAE International. SAE. Retrieved November 4, 2014. ^ You Can Buy a 707-HP Hellcat Crate Engine Directly From Mopar - Brian Silvestro, Road and Track, October 30, 2017 ^ a b "2011 Dodge Challenger SRT8 392 Debuts with Newest HEMI V-8". Chrysler LLC. November 15, 2010. Retrieved April 24, 2011. ^ "Mopar Performance Parts 6.4L 392ci HEMI Crate Engine". February 28, 2006. Retrieved January 16, 2014. ^ Woodyard, Chris (October 27, 2010). "Dodge dumps silly metric system on Challenger '392'". USA Today. Retrieved January 16, 2014. ^ "2011 Dodge Challenger SRT8 392 - Specifications" (PDF). Archived from the original (PDF) on September 16, 2012. Retrieved January 16, 2014. ^ a b "2011-2013 Dodge Challenger SRT8: 392 Hemi, Core and Inaugural Edition". Retrieved January 16, 2014. ^ "2012-14 Dodge Charger SRT8: the hot sedan in its second generation". Retrieved January 16, 2014. ^ "2011-14 Dodge Charger: Car Information and Future Rumors". Retrieved January 16, 2014. ^ "FCA US Media - Mopar Introduces Dodge Charger Redline Infused With New High Output 426 HEMI Aluminum Crate Engine and More Aggressive Style". ^ Hardigree, Matt (February 8, 2012). "Dodge Charger Redline 426: Live Photos". Jalopnik. Retrieved January 16, 2014. ^ Tremblay, Alannah. "New & Used Cars Auto Parts Auto Insurance Auto Loans DaimlerChrysler Announces Winner of Zany "What Can You HEMI?" Contest!". Archived from the original on July 7, 2011. Retrieved November 7, 2010. ^ Kaehler, Justin (June 22, 2005). "That thing got a HEMI?". Retrieved January 16, 2014. ^ "Five Finalists Named in 'What Can You HEMI(R)?' Contest". May 16, 2005. Retrieved January 16, 2014. ^ Keegan, Jr., Walter J. (December 18, 2005). ""What are you able to Hemi?" contest winner". Retrieved January 16, 2014.

External links

Wikimedia Commons has media related to Chrysler Hemi engines.How a hemi engine works A Body Hemi engine swaps New Hemi technical article at AutoSpeed The Original HEMI Mopar HEMI Gen II web page Mopar HEMI Gen III web page Retrieved from ""

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