Engine Hardware & Fasteners

Fasteners, studs, bolt kits, brackets and engine mounting hardware.

Engine fasteners are engineered parts, not commodity bolts. Head studs and rod bolts are specified by material and by the clamping load they are designed to reach, which is why a build makes a stud upgrade before it makes more boost — the fastener is what holds a head gasket sealed under cylinder pressure.

Torque procedure matters as much as the part. Many fasteners are torque-to-yield and are designed to be used once; reusing one that has already stretched gives a clamping load nobody can predict. Follow the sequence and the lubricant the manufacturer specifies, because a torque figure assumes a particular friction condition and means little without it.