Tech Articles

2009+ Mopar Gen. III 5.7L Hemi Eagle Engine Guide: Bore & Stroke, Cylinder Heads, Cam Specs & More

(Image/Stellantis)

When Chrysler announced it was bringing back the legendary Hemi in the early 2000s, it was a big deal. This new series of Hemi engines is often referred to as the “Gen. 3” after the first generation FirePower (1951-59) and second generation Elephant 426 (1964-71).

Note: This Spec Guide is part of a series of Hemi Engine Spec guides we’re putting together. See Other Hemi Engine Spec Guides Here.

Introducing the Eagle

After the initial 5.7L Gen. III Hemi was introduced in 2003, Chrysler made its first major revisions to the 5.7L Gen III Hemi with the appearance of the Eagle version engine starting in 2009.

This engine, referred to as the Eagle, introduced Variable Cam Timing (VCT) and combined that with the Multiple Displacement System (MDS) that demanded major changes to the cylinder block, cylinder heads, and other components. The cylinder heads feature improved intake port flow over the previous 5.7L heads as well as significant changes to combustion chamber size and shape. 

This Engine Guide is Specifically for the 2009+ Mopar Gen. III 5.7L Hemi “Eagle” Engine.

VIN Identification: The 8th digit in the VIN designates the engine—for the 5.7L Eagle, the letter is T.

2009+ Mopar Gen. III 5.7L Hemi Eagle Engine Performance

Mopar 5.7L Hemi Eagle Performance Ratings
VersionTruck
(2020 Ram 1500)
Car
(2021 Challenger)
Displacement5.7L5.7L
Compression Ratio10.5:110.5:1
Horsepower 395 @ 5,600 RPM375 @ 5,150 RPM
Torque410 lb.-ft. @ 3,950 RPM410 lb.-ft. @ 4,300 RPM

2009+ Mopar Gen. III 5.7L Hemi Eagle Engine Block Specs

Mopar 5.7L Hemi Block Specs
Casting Number53021319DK
MaterialIron, with "5.7L" cast into side of block
Displacement5.7L / 345 c.i.d.
Bore Dia.99.5mm / 3.92"
Stroke90.9mm / 3.58"
Deck Height9.25"
Bore Spacing4.46"
Thrust Bearing LocationNumber 3
Main Cap Style2 Bolts with 2 Lateral Cross-Bolts (All 5 mains)
Cam-to-Crank Centerline7.44"
Bellhousing Bolt Pattern Same as Earlier Magnum LA V8 Small Block, but with Top Center Bolt Eliminated

2009+ Mopar Gen. III 5.7L Hemi Eagle Engine Rotating Assembly

Mopar 5.7L Hemi Eagle Rotating Assembly Specs
Piston MaterialHypereutectic Aluminum
Piston StyleFlat Top with Valve Notches (Note: All notches are NOT the same.)
Piston Ring Package1.2mm, 1.2mm, 2.0mm
Wrist Pin Diameter0.945" (Note: Most pins are press-fit, but some are bushed.)
Connecting Rod MaterialPowdered Metal
Connecting Rod StyleI-Beam
Connecting Rod Length6.242"
Connecting Rod Bearing Bore2.125"
Connecting Rod Bolts9.0mm x 1
Crankshaft MaterialNodular Iron, Snout Longer by 0.460"
Crankshaft Casting Number53021300BB
Crankshaft Main Journal Dia.2.559"
Crankshaft Rod Journal Dia.2.126"
Crankshaft Reluctor Count58x
Crankshaft Mounting Flange8 Bolts

2009+ Mopar Gen. III 5.7L Hemi Eagle Cylinder Heads

Mopar 5.7L Hemi Eagle Cylinder Head Specs
Casting Numbers53021616DD (Right)
53021616DE (Left)
Cylinder Head MaterialAluminum, Code Name "Eagle"
Combustion Chamber65cc with Oval “Closed Chamber” Shape & Dual Spark Plugs
Intake Port ShapeRectangle
Intake Runner Volume185cc, (Flow improved 14% vs. early 5.7L)
Exhaust Port Shape"D" Shaped (Note: Exhaust bolt pattern different left to right.)
Exhaust Port Volume56cc
Intake Valve Diameter2.05"
Intake Valve MaterialSteel, Solid Stem
Exhaust Valve Diameter1.55"
Exhaust Valve MaterialSteel
Cylinder Head Bolt StyleTorque to Yield (TTY)
Cylinder Head Bolt SizeM12 x 1.5mm & 8mm

2009+ Mopar Gen. III 5.7L Hemi Eagle Engine Cam Specs

Mopar 5.7L Hemi Eagle Camshaft Specs
Duration @ 0.050" (Intake/Exhaust)258 / 288
(Note: This is a common example, as there are multiple cams for MDS & VCT applications.)
Valve Lift
(Intake/Exhaust)
0.472" / 0.460" (Again, a common example)
Multiple Displacement System (MDS)?Yes, but Not on All Engines
Variable Cam Timing (VCT)?Yes
Cam Journal Dia.61mm Front (Note: Larger than early 5.7L for VCT.)

2009+ Mopar Gen. III 5.7L Hemi Eagle Valvetrain Specs

Mopar 5.7L Hemi Eagle Valvetrain Specs
Lifter DesignHydraulic Roller
Lifter Link StylePlastic Guide x 4
Lifter Body Diameter0.842"
Rocker Arm Mounting StylePedestal
Rocker Arm StyleDie Cast, Roller Fulcrum
Rocker Ratio1.60:1 (Intake)
1.66:1 (Exhaust)
Rocker OffsetNone
Valve Spring StyleBeehive
Valve Angle18° (Intake)
16.5° (Exhaust)
Timing Chain Guide StyleSpring-Loaded Tensioner

Other 2009+ Mopar Gen. III 5.7L Hemi Eagle Engine Specs

5.7L Hemi Eagle Throttle Body, Fuel Injectors, Oil Pan & More
Intake ManifoldComposite
(Active length with & without MDS)
(Passive, fixed length with & without MDS)

Throttle Body80mm, 4-Bolt
Throttle ControlElectronic
Fuel Injector Flow28 lb./hr. @ 58 PSI (Truck)
35 lb./hr. @ 58 PSI (Car)
Flex Fuel CapableNo
Fuel Injector ConnectorUSCAR, EV6
PCM NGC4A, GPEC2, GPEC2A
Crankshaft Reluctor Ring58 Teeth
Camshaft Sensor LocationPassenger Side, Front
Oil PanVaries by Application
Oil PumpGerotor (Revised 20% larger to accommodate VCT)
Variable Cam Timing (VVT)Yes (But not on all models)
Multi-Displacement System (MDS)Yes (But only available with automatic transmissions)
Firing Order1-8-4-3-6-5-7-2
Total Weight, Full Dress591 lbs.
Tags: , , , , , , ,

One Comment

Leave a Reply

Your email address will not be published. Required fields are marked *

*

This site uses Akismet to reduce spam. Learn how your comment data is processed.