Header Bolt Kit - 12pt. 3/8-16 x 1-1/4 (12)

The STAGE 8 FASTENERS Header Bolt Kit – 12pt. 3/8-16 x 1-1/4 (12) is designed for builders and mechanics who require dependable fastening solutions for exhaust headers. This kit is essential for high-performance and modified engines, where maintaining proper clamping force is crucial to prevent exhaust leaks and ensure gasket integrity.

Engineered to withstand extreme thermal cycling and vibration, these 12-point bolts offer superior load distribution compared to standard 6-point heads. This design reduces stress concentration and enhances clamping consistency, which is vital when adhering to precise torque specifications during installation. Each bolt is manufactured to exacting tolerances, ensuring uniform preload across all cylinder head-to-header interfaces.

Engine builders, restoration shops, and DIY enthusiasts will find this kit invaluable for installing or refreshing headers on street performance, race, or modified engines. The 3/8-16 thread size and 1-1/4" length make it suitable for a variety of OEM and aftermarket applications across both domestic and import platforms.