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Skip White Performance

3349 E. Stone Dr.
Kingsport, TN 37660

406/421/434 DART SHP Fully Machined Block

$2,975.00

Available


Variants:

4.125" Bore [31161211-4-125]
4.185" Bore [31161211-4-185]

SBC CHEVY 406/421/434 CUBIC INCH DART SHP BLOCK

FINISHED OUT AT 4.155"

Actual bore size will be approx. 4.145" to be finished out at 4.155" or larger

Important Note: 2pc. Rear Main Seal. This block has 350 mains. Be sure of what size mains you require before purchasing.

Dart SHP Special High Performance Small Block Chevy Cast Iron Bare Blocks

Dart SHP Special High Performance small block Chevy cast iron bare blocks are designed for high performance and heavy duty applications. These SPH blocks are an ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders and high performance marine enthusiasts.
Key features of SHP small block Chevy bare blocks are:
* Priority main oiling system
* Siamese cylinder bores with extra-thick walls
* Extra thick decks to ensure reliable head gasket seal
* Blind head bolt holes (don't go through water jacket)
* Scalloped water jacket walls for improved flow around cylinders for better cooling
* Clearance for 3.75 in. stroke with steel rods
* Splayed outer bolts on middle main bearing caps
* Provisions for OE stock roller lifters and cams
* All OE bolt holes starter, clutch ball, etc.
* Uses 1981 to 1985 stock style oil pan and passenger side dipstick
* Uses stocked stamped steel or plastic timing cover

Pictured below is the new Dart SHP block.
This block is the absolute ultimate in quality, durability, and value.

IMPORTANT NOTE.

This block has 350 mains. Be sure of what size mains you require before purchasing!

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Machine Work

The Dart block is bored and decked to size with our Centroid  CNC touch probe machine. Few machine shops have a machine of this accuracy.

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Decking

We  deck the blocks to an RA finish of approx. 15 or better.  We will deck this block to the exact specs you need.

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When we're finished decking the block, it is within approx. .001 accuracy from end to end. Many machine shops fail to catch this as the machinery they use does not allow for such accuracy.

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Plate Honing

We then plate hone the block with our Sunnen SV15 diamond hone machine .

This is also a very advanced machine that hones the block with a finish unlike conventional machines.

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Product Information

Product TypeBare Block
Price (excl. tax)$2,975.00
Price (incl. tax)$2,975.00
Tax$0.00
Availability Available
Camshaft Location Standard
Block SBC
Brand DART
Camshaft Lifter Bore 0.842
Deck Height 9.025
Freight Required No
Main Bearing Type Chevy 350
Material Class 30 Grey Iron
Shipping Cost 250.0
Number of reviews 0

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