Dart Iron Eagle Small Block Chevy Cast Iron Bare Blocks 31121221

Name: Dart Iron Eagle Small Block Chevy Cast Iron Bare Blocks
Brand: Dart
SKU: DRT-31121221
Price: 5499.99 USD
Availability: OutOfStock
Rating: 0 (0 reviews)

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Part Number: DRT-31121221

$5,499.99

Dart Iron Eagle Small Block Chevy Cast Iron Bare Blocks

Engine Block, Cast Iron, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
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Dart Iron Eagle Small Block Chevy Cast Iron Bare Blocks 31121221

DRT-31121221

Not Yet Reviewed

Part Number: DRT-31121221

Estimated Ship Date: Feb 16, 2027

$5,499.99

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Overview

Applications

Q&A

Instructions & Calculators

Estimated Ship Date: Feb 16, 2027 Would you rather pick it up?

Overview

Brand:

Dart

Manufacturer's Part Number:

31121221

Part Type:

Engines, Bare Blocks

Product Line:

Dart Iron Eagle Small Block Chevy Cast Iron Bare Blocks

Summit Racing Part Number:

DRT-31121221

UPC:

807051015966

Main Journal Type:

Chevy 350

Engine Block Material:

Cast iron

Engine Block Style:

Aftermarket

Engine Block Deck Height:

Tall deck

Deck Height (in.):

9.325 in.

Cylinder Bore as Shipped:

4.115 in.

Cylinder Bore Diameter:

4.125 in.

Maximum Bore Diameter (in.):

4.185

Camshaft Location:

Standard

Main Bolt Style:

4-bolt

Main Caps Included:

Yes

Main Cap Material:

Steel

Main Cap Fasteners Included:

Yes

Main Bearings Included:

Rear Main Seal Style:

2-piece

Finished Cylinder Bores:

Raised Cam Location:

Yes

Cam Bearings Included:

Freeze Plugs Included:

Yes

Remanufactured:

Quantity:

Sold individually.

Notes:

Block has no provision for spin on oil filter. Block bores are .10 undersized to allow for piston set up.

Dart Iron Eagle Small Block Chevy Cast Iron Bare Blocks

Dart Iron Eagle small block Chevy cast iron bare blocks are designed to meet the needs of hot rodders, stock car racers, sprint car teams, drag racers, and road racers who want a real racing block--but at an affordable price. These versatile Dart blocks are a great starting point for big cubic inch small block projects--you can even build a 455 c.i.d. small block!

Iron Eagle Small Block Chevy cast iron bare blocks feature:

* Standard 9.025 in. and tall deck 9.325 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
* Oil pan bolt holes are relocated in line with main caps to eliminate interference with rotating assembly
* 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 provided to simplify plumbing with external pump