{"product_id":"c3-1973-1975-chevrolet-corvette-fan-shroud-extension-350-small-block-ca-51799","title":"C3 1973-1975 Corvette Fan Shroud Extension - 350 Small Block","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRestore proper cooling system performance with this Fan Shroud Extension for 1973-1975 Chevrolet Corvette models equipped with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e350 Small Block engine\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. This import reproduction is designed to attach to the factory fan shroud, extending it to correctly position the cooling fan within the shroud opening for maximum airflow through the radiator. Engineered as a direct replacement for the original GM extension, it is ideal for replacing cracked, warped, or missing components during restoration or cooling system repairs. This extension replaces \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGM Part #331870\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and is designed for use with compatible fan shrouds \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ePart #42576 or #51798\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eManufactured using durable injection-molded construction to meet or exceed OEM specifications, this extension delivers an accurate fit and dependable long-term performance. Proper fan shroud depth is essential for efficient airflow, especially during low-speed driving and idle conditions, making this component an important part of maintaining proper engine operating temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Details\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eFits 1973-1975 Chevrolet Corvette (C3)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for 350 Small Block engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImport reproduction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDirect replacement fan shroud extension\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplaces GM Part #331870\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFor use with Fan Shroud Part #42576 or #51798\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDurable injection-molded construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngineered to meet or exceed OEM specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSold individually\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eFactory-style fit and appearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrecision-molded for accurate fitment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRestores proper fan shroud depth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDirect replacement for the original extension\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal for restoration and cooling system repairs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eImproves radiator airflow and cooling efficiency\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHelps reduce the risk of engine overheating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRestores proper fan-to-shroud positioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplaces cracked, damaged, or missing original extensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintains an OEM-style appearance in the engine compartment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eFitment\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003e1973 Chevrolet Corvette\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1974 Chevrolet Corvette\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1975 Chevrolet Corvette\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CA","offers":[{"title":"Default Title","offer_id":53189275976045,"sku":"A351799","price":168.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0032\/6683\/8574\/files\/51799-1.png?v=1784074537","url":"https:\/\/www.westcoastcorvette.com\/products\/c3-1973-1975-chevrolet-corvette-fan-shroud-extension-350-small-block-ca-51799","provider":"WestCoastCorvette.com","version":"1.0","type":"link"}