(12 PCS) 551696 Exhaust Manifold Header Bolt Kit for LS Series Engines LS1 LS2 LS3 LSX LT – Grade 10.9 Steel LS Header Bolts Replacement Set

Additional Details from the Manufacturer

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More features

• 12PCS COMPLETE HEADER BOLT KIT. This set includes 12 premium exhaust manifold/header flange bolts with integrated flanged heads—no need for extra washers. Designed to meet JIS specifications for precise fit and secure installation.
• Compatibility: Directly replaces OEM Part Number 551696. This header bolt kit is engineered for LS Series engines, including LS1, LS2, LS3, LS6, LSX, LM7, LR4, LQ4, LQ9, L33, LH6, L92, L76, L99, L96, L82, L83, L84, L86, L87, and LT1 models.
• GRADE 10.9 HIGH-STRENGTH STEEL. Each bolt is manufactured from heavy-duty alloy steel with a Grade 10.9 rating—built to withstand extreme torque, vibration, and heat for long-lasting, secure performance.
• ADVANCED DACROMET COATING. Coated with Dacromet for superior corrosion resistance in high-moisture, salt-spray, and high-heat environments. The eco-friendly coating prevents rust without the risk of hydrogen embrittlement.
• IDEAL FOR LS SWAPS & REBUILDS. Perfect for engine swaps, performance upgrades, or replacing worn-out OEM hardware. Trusted by mechanics and DIYers for reliable exhaust manifold fastening on any LS project.