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Dart 31345135 - Dart Small Block Ford Aluminum Race Blocks

  • Engine Block, Aluminum, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Ford, Small Block, Each
  • Application Specific
  • Additional Info
    • This part is normally shipped directly from the manufacturer / Supplier.
  • Warnings
    • This part is shipped via truck freight, additional shipping charges will apply. Multiple truck freight parts on an order may increase the shipping amount.
  • Estimated Ship Date: 2/13/2012
 
BrandDart
Manufacturer's Part Number31345135
Part TypeEngines, Bare Blocks
Product LineDart Small Block Ford Aluminum Race Blocks
Summit Racing Part NumberDRT-31345135
 
Main Journal Type351 Cleveland mains
Engine Block StyleAftermarket
Deck Height (in)9.500 in.
Cylinder Bore as Shipped4.000 in.
Maximum Cylinder Bore Diameter4.165 in.
Engine Block MaterialAluminum
Engine Block Weight (lbs)93 lbs.
Main Bolt Style4-bolt
Main Caps IncludedYes
Main Cap MaterialSteel billet
Main Cap Fasteners IncludedYes
Main Bearings IncludedNo
Rear Main Seal Style2-piece
Finished Cylinder BoresYes
Raised Cam LocationNo
Cam Bearings IncludedYes
Freeze Plugs IncludedYes
QuantitySold individually.
ToolStroker Combinations
 

Dart puts Ford racers in front with their first small block aluminum race blocks designed just for Fords. Working with leading Ford racers and engine builders, they designed these Race series small blocks to solve the shortcomings of production-type blocks used in high-performance and competition applications. These Dart blocks for Fords are produced on dedicated tooling, and machined on state-of-the-art CNC equipment. They added the features that Ford racers need to build powerful and reliable engines, including:

* Cast 355-T6 aerospace alloy blocks for superior strength and integrity
* Siamesed cylinders with standard 4.00 in. or 4.125 in. cylinder bores, which can be safely bored to 4.165 in. diameters
* Ductile iron sleeves and extra-thick walls prevent cracking and produce excellent ring seal
* Scalloped water jackets increase coolant flow around cylinder barrels to prevent detonations, extend engine life, and produce consistent cylinder temperatures
* Four deck heights are available
* Steel 4-bolt main bearing caps are standard. Three center caps have splayed outer bolts for maximum strength; rear cap uses standard one-piece seal
* Two main bearing diameters of 2.249 in. or 2.749 in. allow choice of small or large journal crankshaft
* Stock components make Dart blocks a direct replacement for most production small blocks.
* Provisions for stock motor mounts, accessory drives, smog pumps, starter brackets, oil pans, and pumps
* Upgraded oiling system has a complete stock-type system, plus a low-restriction priority main oiling with front and rear external oil pump feeds
* Dual crossovers allow oil flow to be metered with restrictors for roller lifter cams and/or roller rocker arms to reduce oil flow and windage
* Reinforced head bolt bosses are blind-tapped to prevent leaks and produce accurate torque readings
* Extra-thick decks prevent head gaskets leaks
* Standard camshafts and camshaft drives can be used
* Precision CNC machining ensures consistently high quality and eliminates expensive "blueprinting"

Warranty

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