DART Big M Block Big Block Chevy 4.600 Bore / 10.2 Deck (4 Bolt Main)

DART Big M Block Big Block Chevy 4.600 Bore / 10.2 Deck (4 Bolt Main) Dart engineered the Big M to be the strongest, most reliable, and easiest to build big block on the market, The Big M Sportsman block is fitted with Ductile Iron 4-bolt main caps. Dart BBC Big M Block Bare Block 4.600 in Bore  4.625 Max Bore 4.750 Max Stroke 632 Max Cubic Inch  10.200 Deck 4-Bolt Main 2 Piece Seal Iron Weighs 250 Pounds Big Block Chevy  Each