OptiTorque Patriot Series Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy 20577 Ludwig Clamps

Ludwig Clamps

The retainers are CNC-machined to exact tolerances using CAD/Cam software

5:1+ compression with headers

Backed by a Lifetime Limited Warranty

Mustang Front

OptiTorque Patriot Series Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy 20577 Ludwig ClampsProduct 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.