{"product_id":"scat-modern-muscle-engine-rotating-assemblies-1-48507-020-sca-1-48507-020","title":"SCAT Modern Muscle Engine Rotating Assembly Kit: Fits Chrysler \/ Dodge \/ Jeep \/ Ram (02-26)","description":"\u003ch3\u003eSCAT Modern Muscle Engine Rotating Assembly Kit\u003c\/h3\u003e\u003cp\u003eFits Chrysler, Dodge, Jeep, Ram 5.7L Hemi, 6.1L SRT8, 6.4L 392, 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-48507-020\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe SCAT Modern Muscle Engine Rotating Assembly Kit is engineered for enthusiasts and builders seeking a reliable, high-quality rotating assembly for their Chrysler, Dodge, Jeep, or Ram Hemi engines. Designed to fit a broad range of 5.7L to 6.4L Hemi models, including the 6.1L SRT8, 6.4L 392, and the 6.2L Hellcat and Trackhawk, this kit provides the essential internal components needed to build or rebuild a performance engine.\u003c\/p\u003e\u003cp\u003eThis kit is ideal for those looking to upgrade or replace their engine’s rotating assembly with forged components that offer durability and strength under demanding conditions. Whether you are restoring a classic muscle car or building a modern performance machine, SCAT’s rotating assembly delivers the foundation for a powerful and dependable engine build.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with precision and quality materials, this rotating assembly kit offers a range of features designed to enhance engine reliability and performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged 4340 steel crankshaft for exceptional strength and durability\u003c\/li\u003e\n\u003cli\u003eForged 4130 steel I-beam connecting rods with 6.125-inch center-to-center length\u003c\/li\u003e\n\u003cli\u003eForged aluminum pistons with a dished design and two valve reliefs for optimal combustion chamber clearance\u003c\/li\u003e\n\u003cli\u003ePiston and ring oversize of 0.020 inches (0.510 mm) for precise bore fitment\u003c\/li\u003e\n\u003cli\u003ePress-fit or floating wrist pins for secure piston connection\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings, rod bearings, and main bearings at stock undersizes for ease of installation\u003c\/li\u003e\n\u003cli\u003eRear main seal style is 1-piece for improved sealing and reliability\u003c\/li\u003e\n\u003cli\u003eEngine stroke of 4.050 inches and bore diameter of 3.947 inches (100.254 mm) matching 6.4L\/392 displacement\u003c\/li\u003e\n\u003cli\u003eBalanced internally (not externally balanced) to maintain engine smoothness\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSCAT’s rotating assembly is crafted with premium forged materials to withstand the rigors of high-performance applications. The crankshaft is made from forged 4340 steel, known for its superior tensile strength and fatigue resistance, ensuring longevity even under high RPM and load conditions. The connecting rods utilize forged 4130 steel with an I-beam design, providing an excellent strength-to-weight ratio and durability for aggressive driving and racing environments.\u003c\/p\u003e\u003cp\u003eThe pistons are forged aluminum with a dished top and two valve reliefs, engineered to optimize combustion efficiency while maintaining adequate clearance for high-lift camshafts. The kit’s components are precision machined to tight tolerances, ensuring proper fitment and reliable operation within the engine block.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis rotating assembly kit is designed as a direct fit for most Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat or Trackhawk engines. Installation requires standard engine rebuild procedures and should be performed by a professional or experienced engine builder to ensure proper clearances and assembly techniques.\u003c\/p\u003e\u003cp\u003eNote that this kit does not include components such as the harmonic balancer, flexplate, flywheel, camshaft, lifters, timing chain and gears, gaskets, or oil pump. These items must be sourced separately to complete the engine build.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged 4340 steel crankshaft\u003c\/li\u003e\n\u003cli\u003eForged 4130 steel I-beam connecting rods (6.125-inch center-to-center)\u003c\/li\u003e\n\u003cli\u003eForged aluminum pistons with two valve reliefs\u003c\/li\u003e\n\u003cli\u003ePiston rings (0.020-inch oversize)\u003c\/li\u003e\n\u003cli\u003eRod bearings (stock undersize)\u003c\/li\u003e\n\u003cli\u003eMain bearings (stock undersize)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis SCAT rotating assembly kit is perfect for engine builders, performance enthusiasts, and restorers working on Chrysler, Dodge, Jeep, or Ram Hemi engines from 5.7L to 6.4L displacement. It suits applications ranging from street performance upgrades to track-focused builds where durability and strength are paramount. The kit provides a solid foundation for high-performance engine builds requiring forged internals and precise engineering.\u003c\/p\u003e","brand":"SCAT Crankshafts","offers":[{"title":"Default Title","offer_id":47379545325780,"sku":"1-48507-020","price":2699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002163_imgi_1_Chrysler-Modern-Hemi-Rotating-Assembly_6a7925b9-d1cc-4a3b-8439-ca5d59e895a2.webp?v=1771667037","url":"https:\/\/fasthemis.com\/products\/scat-modern-muscle-engine-rotating-assemblies-1-48507-020-sca-1-48507-020","provider":"FastHemis","version":"1.0","type":"link"}