Chevrolet Performance 19434240: 19434240 Mark IV/Gen VI Bare 502 ci. Engine Block
Performance Small Block Bare Block
Mark IV/Gen VI Bare Engine Block Block Material: Cast-Iron Bore: 4.470 in. Deck Height: 9.800 in. Siamese Cylinders 4-Bolt Main Caps Compatible w/Mark IV or Gen VI Heads Uses Roller or Flat Tappet Camshaft 1-Piece Rear Main