Dart Big M Engine Block - Bare Block - 4.600 in Bore - 9.800 Deck - 4-Bolt Main - 2-Piece Seal - Big Block Chevy 31213644 RS003C02 125 in Stroke

125 in Stroke

Allstar valve lash wrenches save precious time and make valve adjustment easy

Never stretch the chain with a screwdriverSince 1938

1980-1987 GMC Jimmy

Hard Chrome Plated

Dart Big M Engine Block - Bare Block - 4.600 in Bore - 9.800 Deck - 4-Bolt Main - 2-Piece Seal - Big Block Chevy 31213644 RS003C02 125 in StrokeProduct Description: Engine Big M Bare Block 4. 600 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