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Secure Your LS Cooling System

Ensure your GM LS-series engine cooling system is properly sealed with the Allstar Performance Coolant Bypass Crossover Plugs. Designed for builders and enthusiasts who need a reliable solution for blocking off unused coolant ports, these plugs offer a precision fit that prevents leaks and maintains optimal thermal efficiency. Whether you are performing a custom engine swap or simplifying your cooling loop, these components are essential for a professional-grade build.

Key Features and Benefits

• Precision Engineering: Specifically designed for GM LS-series engine blocks.
• Durable Construction: Manufactured from high-quality steel for maximum longevity.
• Corrosion Resistance: Zinc-plated finish provides excellent protection against the elements and engine bay heat.
• Complete Kit: Sold as a pair to cover both sides of the crossover port effectively.
• Easy Installation: Designed for a direct, hassle-free fit in standard LS coolant passages.

When working on high-performance engine builds, every detail matters. These crossover plugs eliminate the risk of coolant seepage, ensuring your engine runs at the correct temperature under load. Don't compromise your cooling system integrity with makeshift solutions; choose the reliability of Allstar Performance. For all your high-performance automotive needs, trust the experts at GGCRACING.