Enginetech PK4B Brass Expansion Plug Kit for GM Chevy Engines

The Enginetech PK4B is a brass expansion plug kit designed for General Motors and Chevrolet engines. Also commonly known as freeze plugs, core plugs, or Welsh plugs, these brass expansion plugs seal the casting holes left in engine blocks and cylinder heads during the manufacturing process.

Key Features:

• Manufactured from durable brass for superior corrosion resistance compared to steel alternatives
• Designed to fit GM and Chevrolet engine applications
• Seals engine block and cylinder head core passages to prevent coolant leaks
• Brass construction withstands the thermal expansion and contraction cycles of normal engine operation
• Precision-formed to ensure a tight, leak-free fit

Enginetech is a well-established manufacturer of engine rebuilding components and kits. The PK4B brass expansion plug kit is an ideal choice for engine rebuilds, restorations, or any repair requiring replacement of worn, corroded, or damaged freeze plugs. Brass plugs are the preferred choice for many professional engine builders due to their long service life and resistance to rust and corrosion.