Dart Main Bolt - 4-Bolt Mains - Steel - Black Oxide - Big Block Chevy 29004R Kits are offered with -6AN

Kits are offered with -6AN or -8AN lines and fittings

1986-1996 Ford Bronco

1999-2019 Ford F-350 Super Duty

street-performance

E85 Fuel Pump

Dart Main Bolt - 4-Bolt Mains - Steel - Black Oxide - Big Block Chevy 29004R Kits are offered with -6ANProduct Description: Main Stud Kit Hex Head 4 Bolt Mains Steel Black Oxide Big Block Chevy 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 centers, and tested on Dartas computer controlled