Direct Fit for 1999–2013 LS Engines: Specifically engineered for 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L LS-series engines, including LS1, LS3, LM7, LC9, LQ4, L96, and more. 12577215 This set is a perfect replacement for missing or worn bolts in stock or modified engines.
Durable High-Strength Construction – Built to Last: Crafted from Grade 9.8 high-strength alloy steel, these valve cover bolts offer exceptional resistance to corrosion, heat, and wear. Designed for both high-performance builds and daily-driven vehicles, they provide long-lasting reliability and a secure seal under demanding conditions.
Style Rubber Grommet Seals – Leak-Free Protection: Each bolt comes pre-installed with a rubber grommet seal that helps prevent oil leaks and maintains a proper valve cover fit, reducing the chance of gasket failure or misalignment over time.
Ideal for Repairs, Swaps & Performance Upgrades: Whether you're performing a rebuild, engine swap, or performance upgrade, these fasteners provide consistent clamping force to ensure your valve covers remain securely sealed and properly aligned.
Complete Set of 10 Valve Cover Bolts with Seals: This kit includes ten high-strength bolts with pre-installed rubber grommets, delivering even pressure distribution for a secure, leak-free installation across both valve covers.
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