Dart LS Next Aluminum Bare Blocks 31947212 Engine Block, SHP Next, Block, 4.125 in Bore, 9.240 Deck, 4-Bolt Mains, Cast Aluminum, GM LS-Series, Each
Dart LS Next Aluminum Bare Blocks 31947212 Engine Block, SHP Next, Block, 4.125 in Bore, 9.240 Deck, 4-Bolt Mains, Cast Aluminum, GM LS-Series, Each
A$15,103.90
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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 drt31947212 SFX Item ID 5089793 Accounting SKU drt-31947212 Manufacturer SKU 31947212 Manufacturer UPC 807051019629 Alternative References 31947212, DRT-31947212
Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:26:19
Part Type
Engines, Bare Blocks
Specifications
Engine Block, SHP LS Next, Bare Block, 4.125 in Bore, 9.240 Deck, 4-Bolt Mains, Cast Aluminum, GM LS-Series, Each
Dart LS Next aluminum bare blocks are designed from a clean slate approach. They integrate the robust heritage of a traditional Chevy small block with the performance potential of the late model LS engine architecture. By utilizing conventional style main caps and oil pans with LS rotating assemblies and related components, Dart has addressed the LS engine's more noticeable shortcomings on the bottom end—while still supporting high-flow and efficient cylinder heads developed for both the Gen III and IV platforms. Dart LS Next aluminum bare blocks are a real game-changer!
Highlight features of the LS Next aluminum bare blocks are:
• Cast from premium aluminum alloy
• One-piece rear main seal design
• Conventional style 4-bolt steel main caps
• Available in deck heights from 9.240 in., 9.450 in., and up to 9.800 in.
• Extra-thick decks ensure reliable head gasket seal
• Blind head holes available in 7/16 in. or 1/2 in.
• Scalloped water jackets increase flow around cylinders for better cooling
• Clearance for 4.100 in. stroke with steel rods
• Must be clearanced for fully counterweighted crankshafts
• Splayed outer bolts on middle main bearing caps
• Provisions for OE stock roller lifters and cam
• Uses stock timing covers and stock rear cover
• All OE holes for starter water pump, etc.
• Skirted and non-skirted design available
• Driver or passenger side starter mounts (not available on skirted version)
| Product Attributes | |
|---|---|
| Brand | Dart |
| Manufacturer's Part Number | 31947212 |
| Part Type | Engines, Bare Blocks |
| Product Line | Dart LS Next Aluminum Bare Blocks |
| UPC | 807051019629 |
| Main Journal Type | Chevy LS |
| Engine Block Material | Aluminum |
| Engine Block Style | Aftermarket |
| Engine Block Deck Height | Standard deck |
| Deck Height (in.) | 9.240 in. |
| Cylinder Bore Diameter | 4.125 in. |
| Maximum Bore Diameter (in.) | 4.165 |
| Camshaft Location | Standard |
| Engine Block Weight (lbs.) | 115 lbs. |
| 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 | 1-piece |
| Finished Cylinder Bores | No |
| Raised Cam Location | Yes |
| Cam Bearings Included | No |
| Freeze Plugs Included | No |
| Remanufactured | No |
| Quantity | Sold individually. |
Reference Information
| Brand Name/s | Dart |
|---|---|
| StreetFX SKU | drt31947212 |
| SFX Item ID | 5089793 |
| Supplier Item Code | 5089793 |
| Manufacturer SKU | 31947212 |
| Manufacturer UPC | 807051019629 |
| Alternative References | 4-Bolt |
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 small block Gen III/IV (LS-based engines) |
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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