1、Applicable Model: The header manifold stud kit is a replacement for Chevy V8 LSX LS1 LS2 LS3 LS6 LS7 4.8 5.3 6.0 6.2L. 2、Material: Made of stainless steel, the surface is polished, corrosion resistance and high temperature resistance, can be used for a long time in a high temperature environment. 3、Stable: Precision machining and design provide excellent strength and mechanical properties to ensure that the cylinder head is tightly coupled to the cylinder and does not come loose. 4、Tightly Fix: The screw size is M8x45MM, the nut size is M8, the structure is strong, the thread can be tightly connected, will not loosen. 5、Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability.