Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711212 Blocks, Series, Aluminum, 9.025 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Block,Chevy, Each
Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711212 Blocks, Series, Aluminum, 9.025 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Block,Chevy, Each
Description
With displacements up to 455 cubic inches, the Race Series small block Chevy aluminum bare blocks are an ideal starting point for any project that involves sprint cars, modifieds, late model stock, dragsters and unlimited competition classes.
Incorporated features include:
* Standard 9.025 in., tall deck 9.325 in. and 9.500 in. versions allow for greater versatility.
* Raised camshaft .391 in. (4.912 in. camshaft to crankshaft centerlines) provides more clearance for stroker cranks and eliminates need for fragile small base circle cams. Option for .434 raised cam also available
* Relocated oil pan rails are spread .400 in. per side (.800 in. wider than stock) to increase crank/rod clearance and reduce windage losses
* Siamesed cylinders: Standard 4.000 in. or 4.125 in. cylinder can be safely bored to 4.185 in. (ductile iron sleeves and extr-thick walls prevent cracking and produce excellent ring seal
* Oil pan bolt holes are relocated in line with main caps to eliminate interference with rotating assembly
* Main bearing bores are available for 350 (2.45 in.) and 400 (2.65 in.) bearings allow engine builders to maximize crankshaft strength and minimize friction
* 4 bolt billet steel main caps have splayed outer bolts minimize bearing bore distortion
* Big block camshaft bearings allow use of cams with larger base circle diameter to improve strength and resist twisting with cam driven pumps
* Dual starter mounts allow starter to be mounted on either side of block for chassis and oil pan clearance
* Front and rear external oil inlets, crossover and restrictor provisions to simplify plumbing with external pump
* Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures
* Coated cam bearings, freeze plugs and dowels are included
Part Type
Engines, Bare Blocks
Specifications
- Product Attributes - Brand
- Dart
- Product Attributes - Manufacturer's Part Number
- 31711212
- Product Attributes - Part Type
- Engines, Bare Blocks
- Product Attributes - Product Line
- Dart Race Series Small Block Chevy Aluminum Bare Blocks
- Product Attributes - UPC
- 807051019117
- Product Attributes - Main Journal Type
- Chevy 350
- Product Attributes - Engine Block Material
- Aluminum
- Product Attributes - Engine Block Style
- Aftermarket
- Product Attributes - Engine Block Deck Height
- Standard deck
- Product Attributes - Deck Height (in.)
- 9.025 in.
- Product Attributes - Cylinder Bore as Shipped
- 4.115 in.
- Product Attributes - Cylinder Bore Diameter
- 4.125 in.
- Product Attributes - Maximum Bore Diameter (in.)
- 4.185
- Product Attributes - Camshaft Location
- Raised 0.391 in.
- Product Attributes - Engine Block Weight (lbs.)
- 105 lbs.
- Product Attributes - Main Bolt Style
- 4-bolt
- Product Attributes - Main Caps Included
- Yes
- Product Attributes - Main Cap Material
- Billet steel
- Product Attributes - Main Cap Fasteners Included
- Yes
- Product Attributes - Main Bearings Included
- No
- Product Attributes - Rear Main Seal Style
- 2-piece
- Product Attributes - Finished Cylinder Bores
- No
- Product Attributes - Raised Cam Location
- Yes
- Product Attributes - Cam Bearings Included
- No
- Product Attributes - Freeze Plugs Included
- Yes
- Product Attributes - Remanufactured
- No
- Product Attributes - Quantity
- Sold individually.
- Product Attributes - Notes
- Block has +.391 raised camshaft location.
Reference Information
| Brand Name/s | Dart |
|---|---|
| StreetFX SKU | drt31711212 |
| SFX Item ID | 5089938 |
| Supplier Item Code | 5089938 |
| Manufacturer SKU | 31711212 |
| Manufacturer UPC | 807051019117 |
| Alternative References | 4-Bolt, 2-Piece |
Compatibility
| Application Data |
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