OptiTorque Patriot Series Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy 29002BL Fits: GM Metric A-body chassis

Fits: GM Metric A-body chassis

Sold as a pair with mounting hardware

Incorporates factory jet siphon system and sending unit

Speed Bleeders

For nearly a century

OptiTorque Patriot Series Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy 29002BL Fits: GM Metric A-body chassisProduct Description: Main Stud Kit Patriot Series Hex Nuts 4 Bolt Mains Chromoly Black Oxide Big Block Chevy OptiTorque produces premium quality fasteners for a wide range of automotive applications. From stock rebuilds to hard core racing builds, OptiTorque fasteners are USA made and designed, featuring premium materials and designed to meet or exceed OEM specs.