{"product_id":"power-amp-series-serpentine-pulley-kit","title":"Power \u0026 Amp Series Serpentine Pulley Kit","description":"The March Performance 4450 Power \u0026amp; Amp Series Serpentine Pulley Kit is engineered to enhance the performance of specific GM trucks. This 3-piece set replaces factory steel pulleys with lightweight 6061-T6 billet aluminum components. The primary benefit is an increase in horsepower, with a claimed gain of 12.5 HP, achieved by reducing the drag from front engine accessories.\n\nConstructed from durable 6061-T6 billet aluminum, these pulleys are designed for longevity and performance. The kit features an SFI-approved crankshaft dampener, a smooth aluminum water pump pulley, and a 6-rib aluminum alternator pulley with a cover. All components have a show-quality clear powdercoated finish. The design slows down horsepower-robbing accessories, resulting in more power delivered to the wheels. The crank pulley includes a hard coating to prevent oil seal leaks, and the water pump pulleys feature a similar coating to prevent premature wear.\n\nThis pulley set is compatible with 1996-1997 GMC and Chevy Trucks equipped with 4.3L V6, 5.0L (305), or 350 (5.7L) V8 engines. Crucially, it is designed specifically for vehicles that use external alternator fans only. The crankshaft pulley is of an underdrive style. The kit utilizes the factory-size serpentine belt, simplifying installation and ensuring proper fitment. It includes all necessary mounting hardware.","brand":"March Performance","offers":[{"title":"Default Title","offer_id":52662944432440,"sku":"4450","price":234.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687502831.jpg?v=1784321922","url":"https:\/\/store.motormia.co\/products\/power-amp-series-serpentine-pulley-kit","provider":"MOTORMIA","version":"1.0","type":"link"}