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 Modules are available with 255

Modules are available with 255 or 450 LPH fuel pumps in single pump configurations

Skyjacker Softride Springs use bolt style spring clips

Fire Retardant Cotton Cover

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

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 Modules are available with 255Product 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.