OptiTorque TorqueMaster Series Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - GM LS-Series 10413 115000HST As the original manufacturer of

As the original manufacturer of off road lighting

Tube-Type Pickup Included

Range Technology modules can help reduce engine wear

They weigh approximately half as much as your OEM steel shaft

1973-1986 Chevrolet C20 Suburban

OptiTorque TorqueMaster Series Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - GM LS-Series 10413 115000HST As the original manufacturer ofProduct Description: Cylinder Head Stud Kit TorqueMaster Series 12 Point Nuts Chromoly Black Oxide GM LS Series 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.