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New Hemi Gen III Parts

426 Gen III Hemi Engine - 425 Horsepower

The Mopar 426 Aluminum HEMI Gen III Crate engine assembly includes the intake manifold and oil pan and offers 425 Horsepower and 530 ft.-lbs. of torque.

P5155513 426 Aluminum HEMI Gen III Crate engine $13,675

Short Blocks

P5155003 Block, Cast Iron, Short, 392 Hemi. Includes Performance Crankshaft, Pistons, Rods, and Rod Bearings.
P5155038 Block, Cast Iron, Short, 6.1L Hemi, Includes Performance Pistons, Rods, and Rod Bearings.

Blocks- Aluminum

Hemi Gen III Aluminum Blocks are 100 pounds lighter than 6.1L production cast iron blocks! They are designed to accommodate all parts from a 6.1L Hemi Gen III engine.

· Lightweight aluminum gives added performance in more ways than one - better acceleration, braking, vehicle dynamics, weight distribution, you name it. Lighter is better.
· Water jackets have been completely re-designed to accommodate a Siamese bore. Extensive Computational Fluid Dynamics (CFD) studies have been performed to balance thermal conditions for consistent and reliable performance.
· Crankcase clearance designed for a 4.125" stroke crankshaft. A 4.250" stroke will fit with machining around the oil drain backs.
· The main bearing supports and the bottom end of the block have been completely redesigned for the additional strength required for a forced induction 440+ cubic inch motor.
· 8620 HR billet steel main caps with four-bolt center caps beef-up the bottom end for severe performance applications.
· Capable of supporting a dry sump package for reduced windage and to allow more engine installation options, including lower vehicle center of gravity.
· Camshaft bearing support area increased to permit the use of a 60 mm roller bearing, if desired.
· Lifter bores can be opened to 1.060" for a bushed-style lifter.
· Additional boss in the front timing chain area for an idler (double roller chain). Additional boss for a front gear drive, plus attachments for a front motor plate.
· All HEMI Gen III dress items fit Gen III Aluminum Blocks (front cover, oil pan, oil filter mounting. Front End Accessory Drive (FEAD), etc.)

P5155507 Block, Aluminum, 426 Hemi, Gen III, Bored at 4.125", Can Be Bored Up to 4.155"
P5153897 Block, Aluminum, 6.1L Hemi, Finished Bored at 4.055"
P5153898 Block, Aluminum, 6.1L Hemi, Semi-Finished Bored at 4.114". Can be Bored Up to 4.185"
P5155630 Block, Aluminum, Hemi Gen III, Semi Finished Builder's Special

Forged Steel Crankshaft

High-strength premium quality 4104 forged steel crankshaft machined from proprietary forgings. For use in high-performance and race applications. Crank nose is machined for full-length damper key and features 2.100" rod throws and “new Hemi” 8-bolt flange – 3.795" Stroke. For 6.1L Hemi block-based stoker applications.

P5153578Crankshaft, 4140 Forged Steel, 3.795" Stroke, 2.100" Rod Journals, 392 Hemi Crate Engine 2093.00

Crankshaft Trigger Wheel Kit

P5155041 Crankshaft Trigger Wheel, includes Fasteners, 6.1L/392 Hemi. Does Not Fit 5.7L Crankshafts. 55.00

Vibration Dampers

ATI Super Damper, SFI-approved for street and race applications. Built specifically for high-performance applications, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations at all RPM. Comes with 360-degree, laser-etched timing marks. 5% O.D.

P5153631 Damper, Crank, SFI, 5.7L Hemi, Truck Timing Cover 690.00


Features intake valve notch and 10.5:1 compression ratio.

P5153635Piston, Forged Aluminum, Designed for production 4.055" bore and 3.795" stroke. Uses full floating 0.927" pin. 10.5:1 compression ratio. Uses stock piston rings. 6.1L/392 Hemi Engine Set. 1314.00


For high performance and racing applications, upgrade your 5.7L HEMI standard production connecting rod bolts to ARP® “Viper” bolts. Made from ARP2000 hybrid-alloy steel, these connecting rod bolts are standard on all Viper and Ram SRT10 engines.

P5153480Bolt Kit, Connecting Rod, 5.7L Hemi 113.75

Pushrod Set

Competition chrome moly steel Pushrod set features 6.625" and 7.875" length, 5/16" diameter.

P5153629Pushrod, Chrome Moly Steel, 0.080" Wall, 6.625" and 7.875" Length, 5/16" Diameter, 5.7L/6.1L/392 Hemi, Engine Set 179.00

Cylinder Heads- CNC Ported

CNC 6.1 Heads

These CNC-ported cylinder heads are equipped with the highest quality parts and technology available to deliver optimum performance. They are designed to optimize flow while maintaining optimum port velocity.

• Brand-new, factory fresh castings (no core required)
• 5-axis CNC-ported
P5153345Cylinder Head; Bare (LH) 5.7L Hemi1144.00 each
P5153346Cylinder Head; Bare (RH) 5.7L Hemi1144.00 each

Cylinder Head Hardware

P5155517Hardware Kit, Stud Set, Cylinder Head, 6.1L Hemi 422.00


P5155631Breather, Billet Aluminum, 5.7L / 6.1L Hemi 171.75


Single Plane Intake Manifold, 7L Crate Engine Single Plane Manifolds — both Carb and EFI versions. EFI version is machined to accept injectors and MAP sensor. Both are drilled with the standard Holley pattern.

P4510581abIntake Manifold, Aluminum, Single Plane, 5.7L Carbureted Engine890.00
P4510582abIntake Manifold, Aluminum, Single Plane, 5.7L EFI Engine 869.00

Dual Quad Manifold

This Dual Plane Mid-Riser Intake Manifold can accept two Edelbrock or AFB – style carburetors.

P5153556Intake Manifold, Aluminum, Dual Plane, Dual Quad, Accepts AFB / AVS Style Carburetors. Use with Carburetor and Linkage Kit P5153904, 5.7L Hemi (2003-2008) 361.00

P5155462Intake Manifold, Aluminum, Stock, 6.1L Hemi

Intake Manifold Gaskets

P5153757Gasket, Intake Manifold, 5.7L Hemi, Set 16.95
P5153758Gasket, Intake Manifold, 5.7L/6.1L, Set, Drag Pak 16.95


Programmable EMS

“Plug and Play” Engine Management Systems (EMS) These engine management systems will forever change the way you look at and perform fuel injection tuning! User-friendly Windows™ based software (XP, 2000, NT, 98, 95 and ME) makes the task of copying, viewing and manipulating data as simple as a click of the mouse. User-defined templates are easily confi gurable and enable tuners to establish “quick keys” to any pertinent information during the tuning process. The infi nitely adjustable Mopar EMS software allows tuners to program virtually any combination of engine control, power adders and auxiliary devices, and accurately deliver proper amounts of fuel and correct ignition timing for virtually any engine configuration or operating condition. Mopar’s programmable engine management system is capable of adapting to almost any vehicle using “flying lead” wiring harness (available separately). We are confident that this is the most versatile, powerful, and comprehensive universal engine management program available for your Mopar!

Unique features found in Mopar’s universal EMS also include 10 independent, built-in peak and holder injector driver channels, direct drive ignition and dual wideband UEGO controllers. Specially configured injector drivers enable users to utilize either low impedance injectors with a true 4/1 peak and hold injector drive circuit as well as saturated injector drivers for use with high impedance injectors. The direct drive ignition feature allows users to drive a coil directly from the ECU, without the need for an igniter or ignition module. A unique, dual-channel wideband UEGO controller is an essential tuning tool that provides accurate monitoring and tuning of air/fuel ratios (AFR) on heavily modifi ed high-performance engines. In addition, the controller incorporates a dual-channel, defi nable knock sensor control for superior engine protection and tuning flexibility.

P5153608 Programmable EMS — Carbureted Applications2190.00

Note: For crate engine or conversion of 5.7L or 6.1L into an older classic car or truck. Not designed for newer vehicles already equipped with a 5.7L 0R 6.1L Hemi.

Engine Wiring Harness- Programmable

Mopar Performance stand-alone engine harnesses are designed to provide everything you need to properly wire your car in one simple confi guration. Each master wiring harness includes built-in fuses and relays for fans, pumps, auxiliary power, and more. Harness has bundle identifiers for easy identification and installation to production Mopar sensors. Secure, “bolt-in” plug mates to Mopar EMS controller and eliminates any chance of separation. Each harness incorporates fl ying-head UEGO branches, allowing custom positioning of both left and right UEGO sensors.

P5153530AB Wiring Harness, 392 Hemi Crate Engine, EFI 925.00
P5153607AB Wiring Harness, 392 Hemi Crate Engine, Carb. 719.00

EMS, Programmable, Kits

The EMS Programmable Kits combine Mopar's programmable Engine Management System with a stand-alone engine harness.

P5153920EMS Kit, Programmable, with Control Unit and Harness, for use with 392/6.1L/5.7L Hemi with Carbureted Intake and 2006 and newer Coils. Contains P5153607AB and P5153608 2497.00
P5153916EMS Kit, Programmable, with Control Unit and Harness, for use with 5.7L Hemi with Carbureted Intake and 2003-05 Coils. Contains P5153606AB and P5153608 2497.00
P5153917EMS Kit, Programmable, with Control Unit and Harness, for use with 5.7L Hemi with four-barrel Throttle Body (P4510363) and four-barrel EFI Intake (P4510582) and 2003-05 Coils. Contains P5155529AB and P5153528 2785.00

Non-Programmable EMS

Service part for 5.7L Hemi Crate Engine. Non-programmable.

P4510816 Non-Programmable, 5.7L Hemi Crate Engine, Carb. 2189.00

EMS Wiring Harness (Non-Programmable Applications)

P4510356Wiring Harness, Non Programmable, for use with 5.7L Hemi with Four-barrel Throttle Body (P4510363) and Four-barrel EFI Intake (P4510582), 2003-05 Coils 780.00

EMS, Accessories

04606487ABACT Sensor, For Use With Hemi Applications 25.50
P5155068 Hall Effect EMS & Electric Speedometer Sender. Sixteen pulse per revolution. Hall effect sender. 7/8-18 thread. .104 x .104 square drive key, with mechanical pass through for cruise control.
04861552AC IAC Motor, For Use With Hemi Applications 66.75
56041018ADMAP Sensor, For Use With Hemi Applications 25.25
P5155065Pin Connector Kit (5 pre-terminated wires) for adding inputs/outputs to the Mopar Programmable EMS Units 05017479AA TPS, For Use With Hemi Applications 30.95

Torque Converters

P5153726Torque Converter, Performance 175K, 2004-08 Charger/300/ Magnum/ Challenger, 5.7L/6.1 346.85

52107555 Clutch Fork 16.50
52087542Pivot Ball 6.50
53008342Release Bearing 70.50
04338855Spring, Clutch Release Fork 4.00

Note: Some modifications will be necessary to adapt a hydraulic system to your vehicle.

Clutch Plate, Hemi Conversion

Street/Strip clutch plate with 1-1/8" 26-spline hub for Tremec TKO (5-speed) transmission. Sprung hub for smoother engagement. Constructed of organic material; capable of 500 ft.-lbs. of torque.

P5153594CLUTCH PLATE 85.50

Cylinder Head Tie Bars

bars hemi

For the HEMI Gen III, valvetrain tie bars increase the stiffness of the rocker shaft attachment to the cylinder head and provide increased valvetrain stability at higher RPMs.

P5155654 Tie Bar, 2005-08 5.7L Hemi, 2005-10 6.1L Hemi $358.80
P5155655 Tie Bar, 2009-10 5.7L Eagle, 2011 6.4L $358.80

Also See the Milodon Page for more oil pans and oiling systems

Throttle Body

P4510363Throttle Body — 5.7L Hemi Crate Engine 728.00

392 Hemi


Mopar’s fi re-breathing, 525-horsepower fuel-injected 392 Hemi crate engine is an all-new engine assembly for a new generation of Mopar enthusiasts. Comes complete with a preprogrammed engine controller and harness to ensure compatibility with virtually any vehicle configuration.

• Deep-Skirted Cast Iron Block with Cross-Bolted Mains
• CNC Ported Aluminum Twin-Plug Cylinder Heads
• Stainless Steel 2.100" Intake and 1.600" Exhaust Valves
• Ovate Wire (Beehive) Competition Valve Springs
• Viton Competition Valve Stem Seals
• 279°/285° (duration @ .006") Hydraulic Roller Cam with .584" In,.552” Ex
• Forged Pistons (4.055" Bore)
• 10.3:1 Compression Ratio
• Aluminum Single Plane High Rise Intake Manifold, Holley 870 cfm 4-bbl. Carb.
• OR 80 mm manual throttle body
• 4140 Forged Steel Crankshaft – 3.795" Stroke
• 4130 Forged Steel I-Beam Performance Connecting Rods – 6.200" Length
• SFI-Approved Competition Crankshaft Damper
• “Plug and Play” Wiring Harness
• Premium Tri-Metal Performance Engine Bearings
• Precision Balanced Rotating Assembly
• Distributorless Coil-On-Plug (COP) Ignition System

“Plug & Play” Engine Management System (EMS) Features Include:

• Windows® software
• Built-In Peak and Hold Injector Drivers
• Built-In Direct Drive Ignition
• Built-In Dual Wideband UEGO Controllers (UEGO sensors not required or included)
• Sequential Fuel Injection
• Soft Cut Rev Limiters
• Onboard 512 kb Datalogger
• Definable Knock Control
• Full Idle Control
• Uses all the Factory Sensors
• Complete 392 calibration included
5153605 392 Hemi Crate Engine — SEFI, 525 horsepower, 510 ft.-lbs. torque
5153603 392 Hemi Long Block Crate Engine

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