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Dart 31264455 Short Blocks

Manufacturer

Dart

<p>Dart is committed to producing the best engine components available. All development, machining and assembly are done at Dart&rsquo;s own facilities in order to maintain the highest standards of quality. State of the art CNC machining centers, a computer controlled dynamometer and the proprietary &ldquo;Speed Flow&rdquo; technology / wet flow bench are among the assets which contribute to &ldquo;the Dart advantage&rdquo;.</p>

Picture for manufacturer Dart 126311 Sbc Shp Cylinder Head 200cc/64cc Sp - Bare

Part Number

31264455
10 reviews
04/18/2034 6:28 PM
Sale Price

$9,528.15

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Product Details

Dart 31264455 Short Blocks

Aluminum BBC Block

Standard 4.840 or 4.900 spread bore spacing provide large bore capacity. The camshaft is raised .400 above the stock location to increase clearance for the connecting rods and crankshaft counter weights, and the main oil gallery is located alongside the camshaft tunnel to eliminate interference with the crank assembly.

Advanced engineering makes Dart aluminum big blocks the choice for serious competition.

Features:

  • Premium alloy: Dart aluminum blocks are cast from virgin 355-T61 aerospace alloy for superior strength and integrity.
  • 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 BBC lifter bores, other options also 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 any chassis.
  • Dual oil pan bolt patterns fit standard and notched oil pans.
  • Average weight 140lbs.
  • Dart blocks are available fully finish prepped.

Products specifications

Cam Bearings Included

Yes

Cyl Bore

4.5in

Cylinder Bore as Shipped

4.490 in.

Deck

10.2in

Deck Height (in)

10.200 in.

Engine Block Material

Aluminum

Engine Block Style

Aftermarket

Engine Block Weight (lbs)

168 lbs.

Finished Cylinder Bores

No

Freeze Plugs Included

Yes

Main Bearings Included

No

Main Bolt Style

4-bolt

Main Cap Fasteners Included

Yes

Main Cap Material

Steel billet

Main Caps Included

Yes

Main Journal Type

454 mains

Maximum Cylinder Bore Diameter

4.625 in.

Notes

Bore spacing is standard 4.840 in.

Quantity

Sold individually.

Raised Cam Location

Yes

Rear Main Seal Style

2-piece

Tool

Stroker Combinations

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