OptiTorque Header Stud - 3/8-16 and 3/8-24 in Thread - 1.675 in Long - Small Journal - Small Block Chevy (Set of 12) 935014 This exhaust uses all factory

This exhaust uses all factory hanger locations

AMC and other DUI distributors

Classic Instruments 1978-88 Chevy G-Body direct-fit package is an all-electric cluster featuring OE style

72 ratio are designed for GM LS applications

Only ultra strength material is used which is 67% stronger than titanium

OptiTorque Header Stud - 3/8-16 and 3/8-24 in Thread - 1.675 in Long - Small Journal - Small Block Chevy (Set of 12) 935014 This exhaust uses all factoryProduct Description: Header Stud 3 8 16 and 3 8 24 in Thread 1. 675 in Long Nuts Included Broached Small Journal 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.