{"product_id":"454-hemi-stroker-6-4l-short-block-engine","title":"454 HEMI Stroker 6.4L Short Block Engine","description":"The MMX 454 HEMI Stroker Engine provides a high-performance foundation for 6.4L HEMI applications seeking significant power increases. Engineered for high-output naturally aspirated performance, this short block utilizes a 4.250-inch stroke crankshaft paired with 6.125-inch connecting rods and a 4.125-inch bore. It is available with compression ratios between 10.5:1 and 11.5:1 and is rated to handle a 250-shot of nitrous for additional power needs.\n\nThis engine is built specifically using 2011-2017 SRT 6.4 block cores; the design is incompatible with 'BGE' casting blocks because those utilize shorter cylinder lengths. To achieve the manufacturer-stated performance levels of over 600 wheel horsepower on pump gas, the engine must be paired with an MMX custom grind camshaft, ported cylinder heads, and an appropriate intake manifold. MMX highly recommends the use of a HI-RAM intake manifold to ensure peak performance.\n\nPlease note that this is an engine-program product requiring a core charge. Buyers must verify local and state emissions laws before purchase, as this component is intended for high-performance builds.","brand":"MMX","offers":[{"title":"Default Title","offer_id":52689256775992,"sku":"MMP-454HEMI-SHORT","price":6849.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687392367.jpg?v=1784904166","url":"https:\/\/store.motormia.co\/products\/454-hemi-stroker-6-4l-short-block-engine","provider":"MOTORMIA","version":"1.0","type":"link"}