DART Big M Block Big Block Chevy 4.500 Bore / 9.8 Deck With Billet Main Caps, Dart has engineered the Big M sportsman block to be the strongest, most reliable, and easiest to build big block on the market.
- Dart Big M BBC Block
- Bare Block
- 4.500 in Bore
- 4.625 Max Bore
- 4.500 Max Stroke
- 598 Max Cubic Inch
- 9.800 Deck (Short Deck)
- 4-Bolt Main (Billet Main Caps)
- 2 Piece Seal
- Iron (Weighs 250 Pounds)
- Big Block Chevy
- Each