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
IMPORTANT NOTE.
This block has 350 mains. Be sure of what size mains you require before purchasing!
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.
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.
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.
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.
Product Information
| Product Type | Bare 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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