Genuine GM Intake and Exhaust Valve Set | Fits 6.2L L86 L87 LT1 Gen V Engines | OEM 12629513 & 12678746 | Factory Precision Fit & Sealing for Direct Replacement & Reliable Performance

This Genuine GM Intake and Exhaust Valve Set (12629513 / 12678746) is engineered specifically for 2014-up 6.2L Gen V engines, including L86, L87, and LT1 applications. Manufactured to GM’s exacting OEM standards, these valves restore precise airflow, sealing, and combustion efficiency in high-performance and factory engines alike. Each valve is crafted with premium materials to resist wear, corrosion, and heat fatigue under demanding conditions. Whether you’re performing a complete rebuild, replacing damaged valves, or refreshing a worn-out top end, this Genuine GM valve set ensures OEM-level performance, long-term reliability, and a perfect fit right out of the box.

• Genuine OEM Quality: Direct from GM for guaranteed factory fit and performance—each valve is built to the same specs as the original components used in L86, L87, and LT1 engines.
• Precision Airflow and Sealing: Designed to restore proper cylinder pressure and combustion efficiency, maximizing power output and maintaining smooth, consistent idle.
• High-Temperature Durability: Constructed from heat-resistant alloys that maintain shape and integrity under intense exhaust and intake conditions, ideal for long-term reliability.
• Perfect Factory Fitment: Direct replacement for GM part numbers 12629513 (intake) and 12678746 (exhaust), ensuring hassle-free installation with no modifications required.
• Trusted Performance Restoration: Ideal for Gen V 6.2L engines in Camaro SS, Corvette C7 LT1, Silverado, Sierra, Tahoe, and Suburban—delivering factory-fresh efficiency and power.