Dart Little M2 Small Block Chevy Cast Iron Bare Blocks 31182125 Blocks, M Series, Iron, 9.025 in. Deck Height, 4.000 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Block, Chevy, Each
Dart Little M2 Small Block Chevy Cast Iron Bare Blocks 31182125 Blocks, M Series, Iron, 9.025 in. Deck Height, 4.000 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Block, Chevy, Each
Description
Exclusive Dart flash sale discount at StreetFX!
Talk about timing! This is a limited offer while stocks last on various Dart part numbers. There's never been a better time to buy your Dart upgrades, so what are you waiting for?!
This item is currently on sale!
Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:42:32
Features
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.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Dart |
| StreetFX SKU | drt31182125 |
| SFX Item ID | 5090112 |
| Accounting SKU | drt-31182125 |
| Manufacturer SKU | 31182125 |
| Manufacturer UPC | 807051045246 |
| Alternative References | 31182125, DRT-31182125 |
Bare Blocks, Dart Little M Series, Cast Iron, 9.025 in. Deck Height, 4.000 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Small Block, Chevy, Each
The Dart Little M is designed from the ground up as a true racing engine block which can be used with standard off-the-shelf small block components. These small block Chevy bare blocks are cast from premium high-strength iron and beefed up in all the critical areas. A competition oiling system ensures adequate lubrication to the main bearings at high RPM. Front and rear external oil feed, crossover and restrictor provision simplify plumbing with external pumps. Select from various options:
• Chevy 350 or 400 main journal type
• Aftermarket or stock/OEM standard deck style
• Standard or tall deck height
• Cylinder bore dimensions
| Product Attributes | |
|---|---|
| Brand | Dart |
| Manufacturer's Part Number | 31182125 |
| Part Type | Engines, Bare Blocks |
| Product Line | Dart Little M2 Small Block Chevy Cast Iron Bare Blocks |
| UPC | 807051045246 |
| Main Journal Type | Chevy 400 |
| Engine Block Material | Cast iron |
| Engine Block Style | Aftermarket |
| Engine Block Deck Height | Tall deck |
| Deck Height (in.) | 9.325 in. |
| Cylinder Bore as Shipped | 3.990 in. |
| Cylinder Bore Diameter | 4.000 in. |
| Maximum Bore Diameter (in.) | 4.185 |
| Camshaft Location | Raised 0.391 in. |
| Engine Block Weight (lbs.) | 205 lbs. |
| 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 | 2-piece |
| Finished Cylinder Bores | No |
| Raised Cam Location | Yes |
| Cam Bearings Included | No |
| Freeze Plugs Included | Yes |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Block has +.391 raised camshaft location. |
Compatibility
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