DART Big M Block Big Block Chevy 4.250 Bore / 9.8 Deck With Billet Main Caps

DART Big M Block Big Block Chevy 4.250 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 4.250 in Bore 4.625 Max Bore 4.500 598 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