OptiTorque Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - Big Block Chevy w/ Dart / GM Performance Heads PAC-R553-16 Rear support adds strength to

Rear support adds strength to the rear section of race car by reducing excessive flex

2" Shoulders

Our main facility is in a recently renovated 1950s factory on the Detroit/Ferndale border

Leaf Spring Block

OptiTorque Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - Big Block Chevy w/ Dart / GM Performance Heads PAC-R553-16 Rear support adds strength toProduct Description: Cylinder Head Stud Kit 12 Point Nuts Chromoly Black Oxide Big Block Chevy Dart GM Performance Heads 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.