5.7 Chevy Engine Cylinder Diagram
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2003-08 Mopar Gen. III 5.7L Hemi Engine Guide: Bore & Stroke, Cylinder Heads, Cam Specs & More
Posted by on February 1, 2021 at 11:35 am
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.
The Hemi Returns!
The first edition of the third generation Mopar Hemi engine made its debut in 2003 Dodge Ram trucks and featured a 5.7 liter (345 cubic inch) displacement.
Still considered a small-block engine based on displacement, the 5.7L Gen. III Hemi uses a hemispherical combustion chamber with two spark plugs per cylinder and small wedge flats along with excellent intake and exhaust ports.
This 5.7L engine configuration would be the basis for future Hemi displacement variations.
This Engine Guide is Specifically for the 2003-08 Mopar Gen. III 5.7L Hemi Engine.
…
2003-08 Mopar Gen. III 5.7L Hemi Engine Performance
| Mopar 5.7L Hemi Performance Ratings | ||
|---|---|---|
| Version | Truck | Car |
| Displacement | 5.7L | 5.7L |
| Compression Ratio | 9.6:1 | 9.6:1 |
| Horsepower | 345 hp | 340 hp |
| Torque | 375 lb.-ft. | 390 lb.-ft. |
2003-08 Mopar Gen. III 5.7L Hemi Engine Identification
| Mopar 5.7L 2003-08 Truck Engine Applications | |||
|---|---|---|---|
| VIN Number Digit | Year | Make | Model |
| 8th digit of VIN: "D" | 2003-08 | Dodge | Ram 1500 |
2003-08 Mopar Gen. III 5.7L Hemi Engine Block Specs
| Mopar 5.7L Hemi Block Specs | |
|---|---|
| Casting Numbers | 53021319AG |
| 53021319CB | |
| 50321314 DR | |
| Material | Iron |
| Displacement | 5.7L / 345 c.i.d. |
| Bore Dia. | 99.5mm / 3.92" |
| Stroke | 90.9mm / 3.58" |
| Deck Height | 9.25" |
| Bore Spacing | 4.46" |
| Thrust Bearing Location | Number 3 |
| Main Cap Style | 2 Bolts with 2 Lateral Cross-Bolts (All 5 Mains) |
| Cam-to-Crank Centerline | 7.44" |
2003-08 Mopar Gen. III 5.7L Hemi Engine Rotating Assembly
| Mopar 5.7L Hemi Rotating Assembly Specs | |
|---|---|
| Piston Material | Hypereutectic |
| Piston Style | Flat Top with Valve Notches |
| Piston Ring Package | 1.5mm, 1.5mm, 3.0mm |
| Wrist Pin Diameter | 0.9456" |
| Connecting Rod Material | Powdered Metal |
| Connecting Rod Style | I-Beam |
| Connecting Rod Length | 6.242" |
| Connecting Rod Bearing Bore | 2.125" |
| Connecting Rod Bolts | 9.0mm x 1 |
| Crankshaft Material | Nodular Iron |
| Crankshaft Part Number | 53021302AD |
| Crankshaft Casting Numbers | 53021319AG |
| 53021319CB | |
| 53021300AA | |
| Crankshaft Main Journal Dia. | 2.559" |
| Crankshaft Rod Journal Dia. | 2.126" |
| Balance | Internal |
| Crankshaft Reluctor Count | 32x |
| Crankshaft Mounting Flange | 8 Bolts |
2003-08 Mopar Gen. III 5.7L Hemi Engine Cylinder Heads
| Mopar 5.7L Hemi Cylinder Head Specs | |
|---|---|
| Casting Numbers | 53021300AJ (Right) |
| 53021300BA (Left) | |
| Cylinder Head Material | Aluminum |
| Combustion Chamber Volume | 85cc |
| Combustion Chamber Design | Hemispherical, with Quench & 2 Spark Plugs Per Cylinder |
| Intake Port Shape | Square, with Dimple |
| Intake Runner Volume | 161cc |
| Exhaust Port Shape | Square |
| Exhaust Port Volume | 50cc |
| Intake Valve Diameter | 2.00" |
| Exhaust Valve Diameter | 1.55" |
| Cylinder Head Bolt Style | Torque to Yield (TTY) |
| Cylinder Head Bolt Size | M12 x 1.5mm & 8mm |
2003-08 Mopar Gen. III 5.7L Hemi Engine Camshaft Specs
| Mopar 5.7L Hemi Camshaft Specs | |
|---|---|
| Design | Hydraulic Roller |
| Advertised Duration (Intake/Exhaust) | 260 / 268 |
| Valve Lift (Intake/Exhaust) | .0472" / .0460" |
| Cam Journal Dia. | 2.24" / 57mm Front (Smaller to the Rear) |
2003-08 Mopar Gen. III 5.7L Hemi Engine Valvetrain Specs
| Mopar 5.7L Hemi Valvetrain Specs | |
|---|---|
| Lifter Design | Hydraulic Roller |
| Lifter Link Style | Plastic Guide x 4 |
| Lifter Body Diameter | 0.842" |
| Pushrod Length | Varies by Application |
| Rocker Arm Mounting Style | Shaft |
| Rocker Arm Style | Die Cast, Roller Fulcrum |
| Rocker Ratio | 1.60:1 (Intake) 1.66:1 (Exhaust) |
| Rocker Offset | None |
| Valve Spring Style | Beehive |
| Valve Angle | 18° (Intake) 16.5° (Exhaust) |
| Intake Valve Material | Steel, Solid Stem |
| Intake Valve Diameter | 2.00" |
| Exhaust Valve Material | Steel, Solid Stem |
| Exhaust Valve Diameter | 1.55" |
| Valve Stem Diameter | 0.3125" |
| Timing Chain Guide Style | Spring-Loaded Tensioner |
Other 2003-08 Mopar Gen. III 5.7L Hemi Engine Specs
| 5.7L Hemi Throttle Body, Fuel Injectors, Oil Pan Specs & More | |
|---|---|
| Intake Manifold | Composite, Fixed Runner Length |
| Throttle Body | 80mm |
| Throttle Control | Electronic |
| Fuel Injector Part Number | 4591851AB (& Multiple Alternates) |
| Fuel Injector Flow | 26 lb./hr. @ 58 PSI |
| Flex Fuel Capable | No |
| Fuel Injector Connector | USCAR, EV6 |
| PCM | NG3C / NGC4 |
| Crankshaft Reluctor Ring | 32 Teeth |
| Camshaft Sensor Location | Passenger Side, Front |
| Oil Pan | Varies by Application |
| Oil Pump | Gerotor |
| Variable Valve Timing (VVT) | No |
| Multi-Displacement System (MDS) | Yes, on 2005+ Models |
| Firing Order | 1-8-4-3-6-5-7-2 |
| Total Weight, Full Dress | 560 lbs. |
Tags: Chrysler, Dodge, Engine Specs, Gen III HEMI, HEMI, Hemi Spec Guide, Jeep, Mopar
Author: Jeff Smith Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. Now he serves as a regular contributor to OnAllCylinders.
Posted by: joaniegrosclaudee012479.blogspot.com
Source: https://www.onallcylinders.com/2021/02/01/mopar-chrysler-gen-iii-5-7l-hemi-engine-guide-bore-stroke-cylinder-heads-cam-specs-more/
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