{"product_id":"6-71-roots-style-supercharger-kit-1","title":"6-71 Roots-Style Supercharger Kit","description":"The Speedmaster PCE460.1027 supercharger kit is engineered to deliver significant power gains of 45-55% for Mopar Small Block (LA) engines, including the 273, 318, 340, and 360 cubic inch variants. This comprehensive kit features a polished 6-71 Roots-style blower with a heavy-duty case and double-pinned 3-lobe rotors for consistent boost delivery. The intake manifold is designed to accept dual 4-barrel square-bore carburetors, typically in the 600-850 cfm range.\n\nThis complete bolt-on kit includes the supercharger, intake manifold, snout, 50T\/55T Gilmer pulleys, idler with bracket, a 3-inch belt, a V-belt crank pulley, and all required gaskets. Please note that carburetors, distributor, and fuel system components are sold separately. The kit is built to withstand boost with heavy-duty front and rear bearing plates, and features a pop-off valve relocated to the rear for durability. A 12-month warranty is included.\n\nWhile this kit ships with 50T\/55T pulleys for typical street use, optional 48T, 60T, and 65T pulleys are available separately to fine-tune overdrive for racing or specific street applications. The product is intended for racing applications, and users should verify local emissions regulations. It is recommended to verify the rotating assembly's suitability for sustained race use.","brand":"Speedmaster","offers":[{"title":"Default Title","offer_id":52663777067320,"sku":"PCE460.1027","price":5269.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687712940.jpg?v=1784329520","url":"https:\/\/store.motormia.co\/products\/6-71-roots-style-supercharger-kit-1","provider":"MOTORMIA","version":"1.0","type":"link"}