Dart Big Block Chevy Blocks

Dart's Big Block Chevy blocks come in several configurations:

• MRKIV, SS 396, GenV, GenVI
• MRKIV is most like a vintage BBC featuring a 2-piece rear main seal and comes in either 9.800" or 10.200" deck heights and 4.250" and 4.310" bores
• SS 396 is Super Stock Legal and comes with a 9.800" deck and 4.094" bores
• GenV & GenVI Options Have a 1-Piece Rear Main Seal, offered with either 9.800" or 10.200" Deck Heights and have Either Water Jacketed or Siamese Cylinders
• GenVII 8.1L
• Big M and Big M Sportsman
• True Priority Main Oiling
• 9.800" or 10.200" Deck Heights
• 4.250", 4.500", 4.560" and 4.600" Bore Options
• Ductile Iron or Billet Steel Main Caps
• Big M Pro Iron Blocks
• Deck Options from 9.600” to 11.100” or custom heights.
• Raised cam location +.600” clears stroker crankshafts.
• Oil pan rails are spread .750”.
• Big M Aluminum Blocks
• True Priority Main Oiling
• 9.800" or 10.200" Deck Heights
• 4.250", 4.500", 4.560" and 4.600" Bore Options
• Ductile Iron or Billet Steel Main Caps
• Big M Aluminum Race Series
• Premium alloy: Dart Aluminum blocks are cast from RMR Cast Aluminum alloy for superior strength and integrity.
• Standard 9.800” or 10.200” deck heights/options to 10.400”.
• Raised camshaft location +.400” clears stroker crankshafts.
• Ductile Iron sleeves with extra thick cylinder walls promote excellent ring seal.
• Reinforcing ribs strengthen the lifter valley and bell housing flange.