Description
Header bolts endure extreme thermal cycling and vibration that quickly loosen standard fasteners—this locking kit eliminates that risk before it becomes an engine-bay catastrophe. Whether you’re running a stock rebuild or a high-RPM build, a secure header connection is non-negotiable for reliability and performance. These nickel-plated steel bolts provide the holding power you need without the guesswork.
- Locking fastener design
- 3/8-16 thread size
- 1 inch length
- Hex head style
- Nickel-plated steel
- Set of 12 bolts
- GM V6 / small block Chevy
- Bolt-on installation
- MPN: 8911A









