LS Block Coolant Plug Brass

The LS Block Coolant Plug Brass from Brian Tooley Racing is a vital component for LS engine builders and enthusiasts engaged in block modifications, head gasket replacements, or coolant system overhauls. This precision-engineered brass plug seals the factory coolant passages on LS-platform engines, ensuring effective sealing during high-performance applications.

Crafted from brass, the LS Block Coolant Plug offers superior corrosion resistance and thermal stability compared to plastic alternatives. This makes it particularly suitable for forced-induction applications and high-RPM operations where coolant temperatures can rise significantly. The brass construction resists degradation from aggressive coolant chemistry, helping to maintain engine cleanliness and prevent overheating.

This coolant plug is designed for compatibility with LS1, LS2, LS3, and other LS-family engine variants, making it an essential choice for anyone performing deep-block work or transitioning between different coolant system configurations. Installation is straightforward, requiring no modifications to the engine block or surrounding components, ensuring a seamless fit into the block's existing coolant passage ports.