{"product_id":"ford-small-block-billet-aluminum-underdrive-pulley-set","title":"Ford Small Block Billet Aluminum Underdrive Pulley Set","description":"\u003cp\u003e\u003cstrong\u003eFord Small Block Billet Aluminum Underdrive Pulley Set for 302 5.0L \u0026amp; 351W Windsor Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eImprove engine efficiency and reduce parasitic accessory drag with the Top Street Performance Billet Aluminum Underdrive Pulley Set for Ford Small Block Windsor engines. Designed for 1979-1996 serpentine-equipped 302 (5.0L) and 351 Windsor (5.8L) applications, this lightweight 3-piece pulley kit helps improve available horsepower by slowing accessory drive speeds while maintaining dependable street performance.\u003c\/p\u003e\n\u003cp\u003ePrecision-machined from billet aluminum, these performance-ratio pulleys reduce rotating mass compared to factory pulleys while providing an attractive performance appearance. Available in both black and machined finishes, they are an excellent upgrade for street performance vehicles, Fox Body Mustangs, street rods, restomods, custom Ford builds, and other Small Block Windsor-powered projects using a 6-rib serpentine accessory drive.\u003c\/p\u003e\n\u003cp\u003eThe kit includes crankshaft, water pump, and alternator pulleys along with crankshaft pulley bolts for installation. The power steering, air conditioning, and idler pulleys are not included, allowing compatibility with many existing accessory drive configurations.\u003c\/p\u003e\n\u003cp\u003eWhether you're refreshing an engine bay, building a naturally aspirated performance engine, or reducing accessory load during a street performance build, this billet underdrive pulley kit offers improved efficiency with durable CNC-machined aluminum construction.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eProduct Benefits\u003c\/strong\u003e\u003cbr\u003eUpgrade your Ford Small Block Windsor engine with a lightweight billet aluminum underdrive pulley set engineered to reduce accessory drive speed and minimize parasitic power loss. The precision-machined aluminum construction helps decrease rotating mass while providing long-lasting durability and an attractive performance finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Benefits\u003c\/strong\u003e\u003cbr\u003eUnderdrive pulleys allow more engine power to reach the drivetrain by reducing the energy required to operate engine accessories. This makes them a popular upgrade for street performance builds, weekend cruisers, muscle cars, and custom Ford projects where improved engine efficiency and cleaner engine bay appearance are desired.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMPATIBLE WITH\u003c\/strong\u003e\u003cbr\u003eFORD SMALL BLOCK WINDSOR V8\u003cbr\u003e• 4.9 L \/ 302 in3 generally referred to as 5.0 L\u003cbr\u003e• 5.8 L \/ 351 in3 generally referred to as 351W\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003cbr\u003e• Fits Ford Small Block Windsor 302 (5.0L) and 351W (5.8L) engines.\u003cbr\u003e• Designed for factory-style 6-rib serpentine belt systems.\u003cbr\u003e• Verify accessory configuration, belt alignment, and clearance before installation.\u003cbr\u003e• Does not fit 1994–1995 Ford Mustang applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMMON VEHICLE APPLICATIONS\u003c\/strong\u003e\u003cbr\u003e• Ford Mustang 5.0L performance builds (1979–1993)\u003cbr\u003e• Ford F-150 5.0L and 5.8L performance projects\u003cbr\u003e• Ford Bronco 5.0L and 5.8L builds\u003cbr\u003e• Ford LTD and Crown Victoria 5.0L upgrades\u003cbr\u003e• Street rods and hot rods using Small Block Ford Windsor engines\u003cbr\u003e• Restomod and custom Ford performance builds\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSPECIFICATIONS\u003c\/b\u003e\u003cbr\u003ePulley Style: Serpentine\u003cbr\u003ePulley Set Style: Performance Ratio\u003cbr\u003ePulley Material: Aluminum\u003cbr\u003eCrankshaft Pulley Grooves: 6-Groove Serpentine\u003cbr\u003eWater Pump Pulley Grooves: Non-Ribbed\u003cbr\u003eAlternator Pulley Grooves: 6-Groove Serpentine\u003cbr\u003ePower Steering Pulley: Not Included\u003cbr\u003eAir Conditioning Pulley: Not Included\u003cbr\u003eIdler Pulley: Not Included\u003cbr\u003eHardware: Crankshaft Pulley Bolts\u003cbr\u003eQuantity: Sold as a Set Of 3\u003c\/p\u003e","brand":"Top Street Performance","offers":[{"title":"Natural","offer_id":49562062455080,"sku":"JM5005","price":78.57,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":49562062422312,"sku":"JM5005BK","price":78.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/8356\/5608\/files\/jm5005_2.jpg?v=1732637146","url":"https:\/\/www.topstreetperformance.com\/products\/ford-small-block-billet-aluminum-underdrive-pulley-set","provider":"Top Street Performance","version":"1.0","type":"link"}