Dart Race Series Big Block Chevy Aluminum Bare Blocks 31264445 Engine Block, Series, Aluminum, 4-Bolt Mains, 9.80 Deck, 4.500 in. Dia., Bore, 2-Piece Seal, Chevy, Each
Dart Race Series Big Block Chevy Aluminum Bare Blocks 31264445 Engine Block, Series, Aluminum, 4-Bolt Mains, 9.80 Deck, 4.500 in. Dia., Bore, 2-Piece Seal, Chevy, Each
A$15,317.95
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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 drt31264445 SFX Item ID 5089062 Accounting SKU drt-31264445 Manufacturer SKU 31264445 Manufacturer UPC 807051017205 Alternative References 31264445, DRT-31264445
Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:26:08
Part Type
Engines, Bare Blocks
Specifications
Engine Block, Race Series, Aluminum, 4-Bolt Mains, 9.80 Deck, 4.500 in. Dia., Bore, 2-Piece Seal, Chevy, Each
What makes the Dart Race Series big block Chevy aluminum bare blocks the top choice for serious competition engines? They're based on the Chevrolet big block V8 design, but with added features and Dart's implemented advanced engineering!
Key features of these Dart Race Series blocks include:
• Cast from virgin 355-T61 aerospace alloy for strength
• Ductile iron sleeves with extra thick cylinder walls promote excellent ring seal
• Reinforcing ribs strengthen the lifter valley bellhousing flange
• Inboard valley head stud bosses improve gasket sealing
• Priority main oiling system delivers oil directly to the crankshaft bearings to enhance reliability at high engine speeds
• Standard BBC cam journals, up to 60mm with raised cam options available
• Standard .842 in. BBC lifter bores, other options available
• Available with or without distributor provision
• Steel 4-bolt main caps with splayed outer bolts for extra strength (light-weight aluminum caps also available)
• Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in chassis
• Dual oil pan bolt patterns fit standard and notched oil pans
| Product Attributes | |
|---|---|
| Brand | Dart |
| Manufacturer's Part Number | 31264445 |
| Part Type | Engines, Bare Blocks |
| Product Line | Dart Race Series Big Block Chevy Aluminum Bare Blocks |
| UPC | 807051017205 |
| Main Journal Type | Chevy 454 |
| Engine Block Material | Aluminum |
| Engine Block Style | Aftermarket |
| Engine Block Deck Height | Standard deck |
| Deck Height (in.) | 9.800 in. |
| Cylinder Bore as Shipped | 4.490 in. |
| Cylinder Bore Diameter | 4.500 in. |
| Maximum Bore Diameter (in.) | 4.600 |
| Camshaft Location | Raised 0.400 in. |
| Main Bolt Style | 4-bolt |
| Main Caps Included | Yes |
| Main Cap Material | 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 bores are .010 undersized to allow for piston set up. Cam location raised +.400 in., Lifter bores .842 in., Steel main caps. Freeze plugs, dowel pins and plugs included. |
Reference Information
| Brand Name/s | Dart |
|---|---|
| StreetFX SKU | drt31264445 |
| SFX Item ID | 5089062 |
| Supplier Item Code | 5089062 |
| Manufacturer SKU | 31264445 |
| Manufacturer UPC | 807051017205 |
| Alternative References | 4-Bolt, 2-Piece |
Compatibility
No specific fitment data available for this part. For clarification, please contact us.
Detailed Compatibility
| Application Data | |
|---|---|
| Make | CHEVROLET |
| Engine Type | V8 |
| Engine Family | Chevy big block Mark IV |
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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