Dart Big M Engine Block - Bare Block - 4.250 in Bore - 9.800 Deck - 4-Bolt Main - 2-Piece Seal - Big Block Chevy 31213344 CVR Performance Products 1985-1991 GMC K2500

1985-1991 GMC K2500

and an oven bonded aluminum core to provide efficient cooling with the lightest weight possible

Vehicle Applications: 2007-2019 Toyota Tundra 66

Specializing in custom cutting

Cracked Cap Design

Dart Big M Engine Block - Bare Block - 4.250 in Bore - 9.800 Deck - 4-Bolt Main - 2-Piece Seal - Big Block Chevy 31213344 CVR Performance Products 1985-1991 GMC K2500Product Description: Engine Big M Bare Block 4. 250 in Bore 9. 800 Deck 4 Bolt Main 2 Piece Seal Iron Big Block Chevy Sold Individually Since 1981, Dart Machinery has become the acknowledged leader in producing race winning components. Dart Machinery aluminum and cast iron engine blocks are designed to meet the specialized needs of racers and performance enthusiasts. Dart components are developed in house, manufactured on Dartas own CNC machining