Pioneer Automotive Industries Freeze Plug Kit PE-101; Steel for Chevy 400

Pioneer offers a complete program of high quality expansion plugs including brass, steel, stainless steel and threaded plugs. Steel: High quality, fine-grained and cold rolled steel construction for long lasting strength. Zinc plated for corrosion resistance. Stainless Steel: Offer the attributes of a steel plug with improved corrosion resistance, where required by the application. Brass: Solid brass, for the best corrosion resistance. All available in bulk pack quantities for engine rebuilders.