Description
Officially licensed by Mopar and produced in partnership with Energy, Callies Mopar engine blocks bring genuine factory heritage and modern competition-grade manufacturing together for high-performance Gen III Hemi builds. Cast from original Mopar tooling, cores, and engineering schematics, these high-strength cast iron blocks carry authentic Mopar part numbers to ensure exact OEM component fitment, accessory drive alignment, and cylinder head compatibility.
Supplied fully prepped with billet steel main caps, high-strength main studs, line honing, and finished 4.120" cylinder bores, the Callies Mopar Gen III Cast Iron Hemi Engine Block (Part # 05045475AG-ASSY) provides a bulletproof foundation engineered to withstand extreme cylinder pressures across high-output naturally aspirated, supercharged, and turbocharged combinations.
Key Features & Architecture
- Officially Licensed Mopar Component: Manufactured from authentic OEM molds, cores, and engineering data carrying genuine Mopar part numbers.
- Callies & Energy Manufacturing: Produced and distributed by Callies Performance Products in partnership with Energy for premier quality control and structural integrity.
- CNC-Machined Billet Steel Main Caps: Upgraded with precision billet caps to resist cap walk under extreme cylinder pressures and high-RPM loads.
- Prepped & Line Honed: Arrives assembly-ready with heavy-duty main studs installed and main bearing journals precision line honed to spec.
- Finished 4.120" Cylinder Bores: Features final-finished 4.120" bores with substantial cylinder wall thickness to service or overbore up to a 4.165" maximum diameter.
- Standard Deck Geometry: Standard 9.750" deck height maintains factory intake manifold fitment and front engine accessory drive (FEAD) alignment.
- Standard Camshaft Position: OEM camshaft centerline accommodates factory and aftermarket Gen III Hemi timing sets, lifters, and valvetrain hardware.
- Freeze Plugs Included: Factory-style freeze plugs pre-installed directly from the manufacturer.
Product Specifications
| Specification | Detail / Value |
|---|---|
| Brand | Callies Performance Products |
| Manufacturer Part Number | 05045475AG-ASSY |
| Product Line | Callies Mopar Engine Blocks |
| Engine Platform | Mopar Gen III Hemi |
| Block Material | Premium High-Strength Cast Iron |
| Block Style & Deck Height | OEM Standard Deck | 9.750" Deck Height |
| Finished Cylinder Bore | 4.120" (Finished) |
| Maximum Bore Diameter | 4.165" Max Bore |
| Main Journal Diameter | Mopar Gen III Hemi Standard |
| Main Cap Style & Fasteners | Billet Steel Main Caps (Cross-Bolted Provision) with Heavy-Duty Studs Installed |
| Main Line Honed | Yes (Precision Line Honed to Spec) |
| Camshaft Location | Standard OEM Location (Non-Raised) |
| Rear Main Seal Style | 1-Piece Rear Main Seal |
| Freeze Plugs Included | Yes (Installed) |
| Bearings Included | No (Main and Cam Bearings Sold Separately) |
| Package Quantity | Sold Individually |
Application & Assembly Notes
- Direct OEM Alignment: Retains genuine factory external geometry, allowing full compatibility with OEM Gen III Hemi cylinder heads (5.7L, 6.1L, 6.4L Apache, and 6.2L Hellcat/Demon architecture), intake manifolds, timing covers, and accessory drives.
- Bearings Required: Main bearings and camshaft bearings are not included and must be sourced separately to match your crankshaft journal sizing and camshaft choice.
- Bore Capacity: Shipped finish-honed at 4.120", offering ample room for displacement growth (e.g., 426ci to 440+ci stroker rotating assemblies) up to the 4.165" maximum service limit.
Details
Shipping Information
- H25.00"
