Part Number:
DRT-31213454-PREP
Race Prep Dart Big M Engine Block 31213454 Big Block Chevy Block - 4.500 Bore, 10.200 Deck Height
Big Block Chevy Dart Dart Big M Race Prep engine block, Align-Honed, Bell Housing Squared, Parallel Square Decked, Honed with Torque Plates, Lifter Bore Honed, Install Cam Bearings and Freeze Plugs, Block Cleaned and Ready For Assembly, 4.500 Bore, 10.200 Deck Height (Tall Deck), Billet Main Caps
$4,999.95
3% CREDIT PAYMENT FEE
An additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.
FREIGHT CHARGE
This part will be shipped via truck freight and additional shipping charges will apply. Multiple parts shipped via freight in an order may increase the total shipping amount.
⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals.
For more information, go to www.P65Warnings.ca.gov.
CNC-Motorsports takes great pride in offering a fully race prepped Dart engine block blue-printed to race specifications that is ready for you to assemble
Check and align hone mains if needed, chamfered main parting lines
Bell housing surface squared to crankshaft centerline
Stroker clearance to 4.500 stroke
Parallel square deck the deck surface to your desired deck height
Bottom of the cylinders chamfered
Top of the cylinder bore chamfered
Block de-burred to eliminate sharp edges and casting slag
Freeze plug holes and rear cam hole are chamfered
All bolt holes and oil galley holes chamfered
Oil galley holes tapped
Head and main bolt holes tapped
Chamfered distributor hole and lightly ball honed to eliminate high spots
Hone the block with torque plates to your piston bore size and verified with a profilometer
Top of lifter bores chamfered
Lifter bore checked and honed to your set of lifters you will be using in your build
Install Cam Bearings and Freeze Plugs
Block is cleaned and ready to go
Dart Big M Block has reinvented the Rat motor. Darts new cast iron Big M big block is a no-comparison design that solves the problems that have plugged big block racers for years. Dart has engineered the Big M to be the strongest, most reliable, and easiest to build big block on the market. Features Simaesed extra thick cylinder walls resist cracking and improve ring seal, Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperature. Four bolt billet main bearing caps have splayed outer bolts. Rear four bolt cap uses standard oil pump and two piece rear seal.
Dart Big M Block has reinvented the Rat motor. Darts new cast iron Big M big block is a no-comparison design that solves the problems that have plugged big block racers for years. Dart has engineered the Big M to be the strongest, most reliable, and easiest to build big block on the market. Features Simaesed extra thick cylinder walls resist cracking and improve ring seal, Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperature. Four bolt billet main bearing caps have splayed outer bolts. Rear four bolt cap uses standard oil pump and two piece rear seal.
| CNC Part Number | DRT-31213454-PREP |
|---|---|
| Price | $4,999.95 |
| Sold As | Single |
| Manufacturer's Part Number | 31213454-PREP |
| Brands | Dart |
| Part Types | Engine Block |
| Departments | Parts |
| Vehicle Make | BB Chevy |
| Bore Size | 4.500 |
| Deck Height | 10.200 |
| Block Series | Big M |
| Engine Block Material | Cast Iron |
| Main Caps | Steel |
| Main Size | BB Chevy |
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