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 Allstar valve lash wrenches save

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

For over 45 years Scat Crankshafts has been leading and innovating the crankshaft market

Never stretch the chain with a screwdriverSince 1938

MIG-welded 1x2-inch boxed steel tubing

125 in Stroke

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 Allstar valve lash wrenches saveProduct 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