Dart SHP Bare Block - 4.125" Bore - 9.240 Deck - 4-Bolt - 1 Piece Seal - Iron RS00400312 Cataclean’s cleaning formulation can clean

Cataclean’s cleaning formulation can clean everything the fuel comes into contact with including the fuel injectors

2-Piece Complete

Lowers the rear of your S550 Mustang for an aggressive look

Pull-down adjustment

Whether you prefer a manual

Dart SHP Bare Block - 4.125" Bore - 9.240 Deck - 4-Bolt - 1 Piece Seal - Iron RS00400312 Cataclean’s cleaning formulation can cleanProduct Description: Engine SHP LS Next Pro Bare Block 4. 125 in Bore 9. 240 Deck 4 Bolt 1 Piece Seal 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 on Dartas own CNC machining