{"product_id":"roots-blown-572-mopar-hemi-crate-engine","title":"Roots Blown 572 Mopar HEMI Crate Engine","description":"The Nelson Racing Engines Roots Blown Mopar HEMI 572 is a performance-focused crate engine engineered for those seeking instant throttle response and the signature sound of a roots-style blower. This setup utilizes an Indy Max 10.2-inch aluminum block, a 4.5-inch bore, and a Callies Magnum 4340 forged 4.500-stroke crankshaft to support high-RPM operation up to 7,000 RPM.\n\nThe rotating assembly is completed with 7.100-inch Oliver billet connecting rods and JE forged 9:1 compression pistons. The cylinder heads are Indy 1 RA aluminum units rated at 500 CFM, managed by a custom mechanical roller camshaft, Indy shaft rockers, and .145-wall pushrods. Fuel delivery is handled by dual Holley HP 850 CFM blower carburetors, while an SFI-approved ATI harmonic damper and crank trigger ignition system ensure reliable operation.\n\nEvery unit undergoes a rigorous 100% dyno testing process before delivery to ensure quality and power output consistency. Each build is customized to the user's specific vision and project requirements through NRE’s consultation process.","brand":"Nelson Racing Engines","offers":[{"title":"Default Title","offer_id":52663086514488,"sku":"Roots-Blown-Mopar-HEMI-572","price":44000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687514895.jpg?v=1784323676","url":"https:\/\/store.motormia.co\/products\/roots-blown-572-mopar-hemi-crate-engine","provider":"MOTORMIA","version":"1.0","type":"link"}