Dart LS Iron Block - 9.240/4.000 w/ Steel Main Caps 916290 Sizes refer to door opening

Sizes refer to door opening dimensions

PRO 1 aluminum cylinder heads for small-block V8's deliver advanced airflow technology at an unbeatable price

or both Top and Side Air together using the Tri-Tech system

FW XE268H-10

Dart LS Iron Block - 9.240/4.000 w/ Steel Main Caps 916290 Sizes refer to door openingProduct Description: Engine LS Next Bare Block 4 in Bore 9. 240 Deck 4 Bolt Mains 1 Piece Seal 0. 375 in Extended Cylinder Barrels Iron GM LS Series 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