DART BBC RACE BLOCKS

All Dart blocks feature a true priority main oiling system. Oil is routed directly from the main oil gallery to the main bearings first through drilled passages, ensuring optimum lubrication for the crankshaft. Dart blocks have extra thick cylinder walls to resist cracking and provide superior ring seal. All automotive blocks have siamese cylinder bores. Dart blocks have extra thick decks, providing extremely rigid surfaces that promote excellent head gasket seal. Blind holes protect against any coolant leaks. If your thinking of replacing your weaker older GM block, think Dart before you go any further.

Big M – Race Series Tall Deck – Big M Aluminum – Race Series Aluminum

Part Number      Cap     Main Cam    Deck  Bore  Price                                 Part Number Cap     Main   Cam  Deck    Bore    Price

  • 31273344 Ductile  STD  STD  9.800 4.250 $2299
  • 31273444 Ductile  STD  STD  9.800 4.500 $2299
  • 31273644 Ductile  STD  STD  9.800 4.600 $2299
  • 31263344 Steel     STD  STD  9.800 4.250 $2741
  • 31263444 Steel     STD  STD  9.800 4.500 $2741
  • 31263644 Steel     STD  STD  9.800 4.600 $2741
  • 31264344 Steel     STD  STD  9.800 4.250 $5953
  • A31264644 Steel   STD  STD  9.800 4.600 $5953
  • A31264544 Steel   STD  STD  9.800 4.500 $5953
  • A31264445 Steel   STD  R400  9.800 4.500 $5953
  • A31264645 Steel   STD  R400  9.800 4.600 $5953
  • A31264655 Steel   STD  R400  10.20 4.600 $5953
  • A31264695 Steel   STD  R400  10.40 4.600 $5953
  • 31273354 Ductile  STD  STD  10.20 4.250 $2299
  • 31263354 Ductile  STD  STD  10.20 4.250 $2299
  • 31273654 Ductile  STD  STD  10.20 4.600 $2299
  • 31263354 Steel     STD  STD  10.20 4.250 $2741
  • 31263454 Steel     STD  STD  10.20 4.500 $2741
  • 31263654 Steel     STD  STD  10.20 4.600 $2741
  • A31264444 Steel   STD  STD  9.800 4.500 $5953
  • A31264354 Steel   STD  STD  9.800 4.250 $5953
  • A31266544 Steel   STD  STD  9.800 4.600 $5953
  • A31264485 Steel   STD  R400  10.00 4.500 $5953
  • A31264685 Steel   STD  R400  10.00 4.600 $5953
  • A31264455 Steel   STD  R400  10.20 4.500 $5953
  • A31264495 Steel   STD  R400  10.40 4.500 $5953

Upgrades & Options

Tall Deck Aluminum & Iron Blocks are Available with 4.900″ Bore Spacing
+ call
Radial Clearance Pan Rails Short Deck 4.5″ Stroke w/Steel Rods Tall Deck 4.75″ Stroke Steel Rods
+ 250.00
Fully Race Prep Any Block to Your Specs w/Plate Honing, Decking, Cam Bearings and Freeze Plugs
+ $700.00
All Aluminum Cap for Aluminum Blocks Only
+ call
55mm Cam Tunnels on Any block w/Babbit Bearings Installed
+ $350.00
60mm Cam Tunnels on Any Raised Cam Block w/Babbit Bearings Installed
+ $600.00
.904 Lifter Bores Available on any Block
+ $350.00
Any Aluminum Block is Available w/Out Distributor Provision
+ call
Oring Block w/Stainless Steel Wire
+ $200.00
Main Bearings Installed & Checked for Proper Clearance
+ $150.00
Special Head Stud Kit Used for Honing & Supplied for Your Heads (Starting)
+ $200.00