Stainless Steel Header Bolts for LS Engine Swaps
Installing an LS engine into your project demands fasteners that resist corrosion and stay tight under constant heat cycles. Crafted from 300 series stainless steel, these bolts maintain clamping force and fend off rust even when engine temperatures rise. A 12 point head design allows precise torque application without rounding, making split flange header installation straightforward for both seasoned pros and dedicated enthusiasts. They also lock against loosening from engine vibration, ensuring your exhaust remains sealed under every driving condition.
300 Series Stainless Steel for Engine Heat and Corrosion Defense
Crafted from premium 300 series stainless steel, these header bolts leverage a high chromium content and tight grain structure to resist oxidation and maintain tensile strength at elevated header temperatures. In typical exhaust applications, surfaces routinely exceed 500°F, so the corrosion and scaling resistance of this alloy preserves clamping force over thousands of heat cycles. This material choice also reduces the risk of seizing in high humidity or road salt conditions, making long term maintenance simpler and less costly. By ensuring the fasteners remain free turning yet secure, the design helps prevent costly downtime in both street and track environments.
Twelve Point Bolt Head Geometry Enabling Precise Torque Application
The twelve point head design increases the number of contact faces for a socket, allowing torque to be applied every thirty degrees instead of sixty. This finer engagement reduces the chance of rounding and improves access in tight engine bays where clearance around LS exhaust ports is at a premium. Precise torque control is critical for maintaining an even seal at the header flange gasket, guarding against exhaust leaks that can sap performance and trigger emissions faults. The geometry also promotes consistent clamping force across the flange, supporting stable exhaust gas flow and sustained engine output.
Precision Machining and Integrated Flange for Vibration Resistance
Each bolt is CNC machined to exact tolerances, ensuring straight threads and a uniform head seat that prevents misalignment during installation. The integrated flange under the head distributes load evenly across the split flange surface, eliminating stress risers that could loosen under constant engine vibration. By combining a precisely flat mating surface with tight thread tolerances, these bolts lock securely without the need for additional locking compounds. The result is a fastening system that withstands cyclical loads and thermal expansion without backing off or causing leaks.
Streamlined Fitment for LS Split Flange Headers
Designed specifically for LS engine header patterns with split flanges, the 13 millimeter head size matches standard socket tooling, enabling quick swap outs with no custom adapters. The bolt shank diameter and thread pitch align perfectly with OEM header designs, guaranteeing a snug fit that simplifies installation for professional shops and garage builders alike. This tailored approach reduces installation time, avoids cross threading, and ensures that each fastener draws down evenly, letting you focus on tuning and performance rather than correct hardware alignment.
Engineered for reliable clamping force and corrosion resistance in every heat cycle.