Ford V8 289,302,351 Windsor Welsh Plug Kit Brass Material

Ford V8 Windsor Welsh Plug Kit – Brass Material

Designed for Ford V8 Windsor blocks (289, 302, 351), this Aeroflow Performance Welsh Plug Kit provides a precise, brass solution to seal core holes and protect critical passages within the engine block. The kit includes brass welsh plugs for core holes and steel plugs for oil galleries, offering a complete rebuild-ready package. Cylinder head plugs are not included.

What’s included

• 10 x 1/2" (12.7 mm) Outside Diameter brass Welsh plugs
• 1 x 2-5/32" (55 mm) Outside Diameter brass Welsh plug
• 1 x 3/4" (19 mm) Outside Diameter brass Welsh plug
• 3 x 33/64" (13 mm) Outside Diameter brass Welsh plugs
• 4 x 1/4" NPT steel plugs

Why brass Welsh plugs matter

These expansion plugs seal casting core holes to prevent leaks and resist the stresses of coolant pressure. In regular operation, they help keep all vital fluids contained in the engine, reducing the risk of coolant leaks and maintaining optimal sealing under freeze-thaw conditions.

Compatibility and application

Specifically designed to suit Ford V8 Windsor engines in rebuild scenarios for 289, 302, and 351 cubic inch blocks. This kit provides the correct sizes needed for a comprehensive seal across the engine block, with brass Welch plugs and steel oil gallery plugs included to address core holes and oil pathways during assembly.