{"product_id":"chevy-big-block-348-409-high-flow-mechanical-water-pump-satin","title":"Chevy Big Block 348\/409 High-Flow Mechanical Water Pump - Satin","description":"\u003cp\u003eThis Chevy 348\/409 W-Series High-Flow Mechanical Water Pump is designed for Chevrolet Big Block Gen I \"W\" engines. Featuring a high-volume 8-vane anti-cavitation impeller and lightweight aluminum housing, it helps improve coolant circulation while maintaining compatibility with 348 and 409 accessory drive systems.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePulley Alignment\u003c\/strong\u003e\u003cbr\u003e5.500 in. hub height and 0.625 in. pilot diameter help position the pulley and fan drive during installation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eImpeller \u0026amp; Flow Design\u003c\/strong\u003e\u003cbr\u003eThe 8-vane clockwise high-volume impeller setup helps move coolant steadily through the block, heads, and radiator circuit.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003cbr\u003eConfirm gasket included: yes, mounting hardware included: no, back housing included: yes before final assembly.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCOMPATIBLE WITH\u003c\/strong\u003e\u003cbr\u003eCHEVROLET BIG BLOCK V8 GEN. I (W)\u003cbr\u003e• 5.7 L \/ 348 in3\u003cbr\u003e• 6.7 L \/ 409 in3\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003cbr\u003eColor: Silver\u003cbr\u003eFan Clutch Included: No\u003cbr\u003eFinish: Satin\u003cbr\u003eGasket Included: Yes\u003cbr\u003eGrade Type: Performance\u003cbr\u003eHousing Material: Aluminum\u003cbr\u003eHub Height: 5.500 in.\u003cbr\u003eHub Hole Quantity: 8\u003cbr\u003eHub Thickness: 0.500 in.\u003cbr\u003eImpeller Material: Aluminum\u003cbr\u003eImpeller Rotation: Clockwise\u003cbr\u003eImpeller Vane Quantity: 8\u003cbr\u003eIncludes Back Housing: Yes\u003cbr\u003eMounting Hardware Included: No\u003cbr\u003eMounting Hole Quantity: 4\u003cbr\u003eOutlet Quantity: 1\u003cbr\u003ePilot Diameter: 0.625 in.\u003cbr\u003ePulley Included: No\u003cbr\u003ePump Flow: High-volume\u003cbr\u003eThermostat And Housing Included: No\u003cbr\u003eWater Pump Drive Type: Mechanical\u003cbr\u003e\u003c\/p\u003e","brand":"Top Street Performance","offers":[{"title":"Default Title","offer_id":49983806079272,"sku":"HC8009","price":185.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/8356\/5608\/files\/hc8009-2-600.jpg?v=1736369806","url":"https:\/\/www.topstreetperformance.com\/products\/chevy-big-block-348-409-high-flow-mechanical-water-pump-satin","provider":"Top Street Performance","version":"1.0","type":"link"}