OptiTorque Header Stud - 3/8-16 and 3/8-24 in Thread - 1.675 in Long - Broached - Small Block Chevy (Case of 12) AEB8B743HXXDC-STD Low profile hinge is 2"

Low profile hinge is 2" wide when open and has 7/8" of flat surface on each side of the center pin

the BSR Series of rockers improves valve train dynamics by increasing valve train stiffness

Skyjacker Softride Springs use bolt style spring clips

Proform Pinion Setting Tool 66516 Universal

OptiTorque Header Stud - 3/8-16 and 3/8-24 in Thread - 1.675 in Long - Broached - Small Block Chevy (Case of 12) AEB8B743HXXDC-STD Low profile hinge is 2"Product Description: Header Stud 3 8 16 and 3 8 24 in Thread 1. 675 in Long Nuts Included Broached Steel Black Oxide Small Block Chevy Set of 12 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.