Dart Iron Eagle Mopar Gen III Cast Bare Blocks 31612311 Engine Block, Iron, 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Seal, Non-VVT, Dodge, RAM, Hemi, III, Each
Dart Iron Eagle Mopar Gen III Cast Bare Blocks 31612311 Engine Block, Iron, 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Seal, Non-VVT, Dodge, RAM, Hemi, III, Each
Sale ends in Calculating...
A$11,158.68
A$12,471.15
LAST ONE! Est Ship 4-7 days.
LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description
IMPORTANT NOTICE: Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Dart StreetFX SKU drt31612311 SFX Item ID 5089622 Accounting SKU drt-31612311 Manufacturer SKU 31612311 Manufacturer UPC 807501054637 Alternative References 31612311, DRT-31612311
Engine - Bare Block - 4.250 in Bore - 9.250 Deck - 4-Bolt Mains - 1-Piece Seal - Iron - 6.1L - Gen III Hemi - Each
Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:26:17
Part Type
Mopar 6.1L Gen III Hemi Iron Block 9.250 x 4.250
Specifications
Engine Block, Cast Iron, 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Seal, Non-VVT, Dodge, RAM, Hemi, Gen III, Each
Designed from a clean slate approach, Dart now offers the Iron Eagle Mopar Gen III cast iron bare blocks that address the shortcomings of the Hemi Gen III platform, and are the ideal candidate for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts. By utilizing conventional style main caps with Gen III rotating assemblies and related components, Dart has addressed the windage and oil control problems, along with revising the cooling and oiling passages for improved flow. Non-VVT and VVT version offerings are available. Get everything you ever wanted out of your Gen III Hemi engine with the Iron Eagle Mopar Gen III cast iron bare blocks by Dart!
Key features of Dart Iron Eagle Gen III Hemi cast iron engine blocks:
• Manufactured from superior strength cast iron
• Priority main oiling system with two lifter crossovers and restrictor provisions
• Siamese cylinder bores with extra thick walls
• Extra-thick decks ensure reliable head gasket seal
• Blind head bolt holes available in 7/16 in. standard or 1/2 in. upgrade
• Scalloped water jackets increase flow around cylinders for better cooling
• Clearance for 4.050 in. stroke with steel rods
• Billet steel 4-bolt main caps 1-5, center 3 main caps splayed
• Main studs standard
• Gen III Hemi style motor mounts
• Provisions for OE stock roller lifters and cam
• Uses stock timing covers
• All OE bolt holes for starter, water pump, etc.
• Block can be machined for VVT or non-VVT camshafts
• Parts kit included (32000050 for non-VVT, or 32000051 for VVT); note parts kits do not include cam bearings
| Product Attributes | |
|---|---|
| Brand | Dart |
| Manufacturer's Part Number | 31612311 |
| Part Type | Engines, Bare Blocks |
| Product Line | Dart Iron Eagle Mopar Gen III Cast Iron Bare Blocks |
| UPC | 807501054637 |
| Main Journal Type | Mopar Hemi Gen III |
| Engine Block Material | Cast iron |
| Engine Block Style | OEM |
| Engine Block Deck Height | Standard deck |
| Deck Height (in.) | 9.250 in. |
| Cylinder Bore as Shipped | 4.125 in. |
| Maximum Bore Diameter (in.) | 4.250 |
| Camshaft Location | Standard |
| Main Bolt Style | 4-bolt |
| Main Caps Included | Yes |
| Main Cap Material | Billet steel |
| Main Cap Fasteners Included | Yes |
| Main Bearings Included | No |
| Rear Main Seal Style | 1-piece |
| Finished Cylinder Bores | No |
| Raised Cam Location | No |
| Cam Bearings Included | No |
| Freeze Plugs Included | No |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Does not utilize VVT. |
Reference Information
| Brand Name/s | Dart |
|---|---|
| StreetFX SKU | drt31612311 |
| SFX Item ID | 5089622 |
| Supplier Item Code | 5089622 |
| Manufacturer SKU | 31612311 |
| Manufacturer UPC | 807501054637 |
| Alternative References | 4-Bolt, 1-Piece |
Compatibility
No specific fitment data available for this part. For clarification, please contact us.
Detailed Compatibility
| Application Data | |
|---|---|
| Make | CHRYSLER |
| Beginning Year | 2005 |
| Ending Year | 2010 |
| Engine Type | V8 |
| Engine Size | 6.1L/370 |
| Engine Family | Mopar Hemi Gen III |
| Make | DODGE |
| Beginning Year | 2006 |
| Ending Year | 2010 |
| Engine Type | V8 |
| Engine Size | 6.1L/370 |
| Engine Family | Mopar Hemi Gen III |
| Make | JEEP |
| Beginning Year | 2006 |
| Ending Year | 2010 |
| Engine Type | V8 |
| Engine Size | 6.1L/370 |
| Engine Family | Mopar Hemi Gen III |
This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.
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