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Designed to deliver trouble-free, consistent performance
Right for your vehicle and lifestyle
Made from high-quality materials for ultimate durability
Manufactured to meet or exceed strict quality requirements
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G-Series 5.7L 1973, Expansion Plug Kit (PK1B) by Enginetech. The Engine Builder's Source, can locate the right part for nearly any rebuild application. Offering a full line of internal engine parts for domestic, import and high performance applications, Enginetech products are manufactured only in high quality facilities with ISO, QS & TS quality systems in place. Developed to ensure excellent performance, this product is made in accordance with the most stringent standards to meet or exceed your expectations.