Home All Products Dart Big M² Iron BBC Engine Block, Ductile Caps 9.800 Deck 4.250 Bore +.400 Raised Cam - Part 31223345
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DRT31947242-WW1
DRT31947242-WW1
Home All Products Dart Big M² Iron BBC Engine Block, Ductile Caps 9.800 Deck 4.250 Bore +.400 Raised Cam - Part 31223345

Dart Big M² Iron BBC Engine Block, Ductile Caps 9.800 Deck 4.250 Bore +.400 Raised Cam - Part 31223345

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Product type:  Engine Blocks
Vendor:  Dart
sku: DRT31223345
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bac_1234DartBigM²IronBBCEngineBlock,DuctileCaps9.800Deck4.250Bore+.400RaisedCamisaBigM²castironblockwithductilecapsforBigBlockChevybuilds.Part31223345featuresa9.800in.deckheight,4.250in.bore,a+.400in.raisedcamlocation,ductileiron4-boltmaincaps,standardmainsand220BHNCastIron.AtrueracingBBCblockwithraised+.400camlocation,siamesecylinderwalls,prioritymainoiling,.842lifterbores,press-fitfreezeplugsanda2-piecerearseal.BigM²partskitincluded. SKU:DRT31223345 Partnumber:31223345 Deckheight:9.800" Boresize:4.250" Camlocation:+.400raisedcam Maincaps:Ductileiron4-boltmaincaps Mains:Standard Material:220BHNCastIron Catalogshortdescription:BBCIr/BlkM²Sport9.800-4.250+.400RCBigM²racingironblockwitha+.400raisedcamlocation,prioritymainoiling,.842lifterbores,press-fitfreezeplugsanda2-piecerearseal.

Dart Big M² Iron BBC Engine Block, Ductile Caps 9.800 Deck 4.250 Bore +.400 Raised Cam is a Big M² cast iron block with ductile caps for Big Block Chevy builds. Part 31223345 features a 9.800 in. deck height, 4.250 in. bore, a +.400 in. raised cam location, ductile iron 4-bolt main caps, standard mains and 220 BHN Cast Iron. A true racing BBC block with raised +.400 cam location, siamese cylinder walls, priority main oiling, .842 lifter bores, press-fit freeze plugs and a 2-piece rear seal. Big M² parts kit included.

  • SKU: DRT31223345
  • Part number: 31223345
  • Deck height: 9.800"
  • Bore size: 4.250"
  • Cam location: +.400 raised cam
  • Main caps: Ductile iron 4-bolt main caps
  • Mains: Standard
  • Material: 220 BHN Cast Iron

Catalog short description: BBC Ir/Blk M² Sport 9.800-4.250 +.400RC

Big M² racing iron block with a +.400 raised cam location, priority main oiling, .842 lifter bores, press-fit freeze plugs and a 2-piece rear seal.

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