{"product_id":"callies-compstar-crankshafts-yyk-e18-cs-cpi-yyke18-cs","title":"Callies Forged 4340 Steel Crankshaft: Fits Most Chrysler \/ Dodge \/ Jeep \/ Ram 5.7L-6.4L Hemi Models","description":"\u003ch3\u003eCallies Forged 4340 Steel Crankshaft\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\u003eYYKE18-CS\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Callies Forged 4340 Steel Crankshaft is engineered for high-performance applications in a wide range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with Hemi engines from 5.7L to 6.4L, including the 6.1L SRT8, 6.2L Hellcat, and 6.4L 392 variants. Designed to replace factory crankshafts, this premium forged crankshaft offers enhanced strength and durability to withstand the rigors of aggressive driving, racing, and engine builds requiring superior reliability.\u003c\/p\u003e\u003cp\u003eIdeal for enthusiasts and professional builders seeking a robust rotating assembly component, this crankshaft delivers improved fatigue resistance and precision balance, ensuring smooth engine operation and longevity under high-stress conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to meet the demands of high-performance Hemi engines, the Callies Forged 4340 Steel Crankshaft includes the following features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from premium forged 4340 steel for exceptional strength and toughness\u003c\/li\u003e\n\u003cli\u003eInternal engine balance optimized for smooth operation and reduced vibration\u003c\/li\u003e\n\u003cli\u003eLightened design to reduce rotational mass and improve throttle response\u003c\/li\u003e\n\u003cli\u003eStandard crankshaft snout style for direct fitment with factory components\u003c\/li\u003e\n\u003cli\u003eEngine stroke of 3.800 inches, compatible with multiple Hemi engine displacements\u003c\/li\u003e\n\u003cli\u003eRod journal diameter of 2.100 inches and main journal diameter of 2.559 inches for precise bearing fitment\u003c\/li\u003e\n\u003cli\u003eRear main seal style is a one-piece design for reliable sealing\u003c\/li\u003e\n\u003cli\u003eRequires narrow bearings (rod and main bearings not included)\u003c\/li\u003e\n\u003cli\u003eWeight approximately 52 lbs, balancing durability and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis crankshaft is meticulously forged from 4340 chromoly steel, a material renowned for its high tensile strength and fatigue resistance, making it an ideal choice for performance engine components. The forging process enhances the grain structure of the steel, resulting in a crankshaft that can endure extreme loads and high RPMs without failure.\u003c\/p\u003e\u003cp\u003eIts internal balance design reduces the need for external balancing weights, contributing to smoother engine operation and less wear on related components. The lightened construction reduces rotational inertia, allowing the engine to rev more freely and respond quicker to throttle inputs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Callies Forged 4340 Steel Crankshaft is designed as a direct replacement for factory crankshafts in Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat \u0026amp; Trackhawk engines. Installation requires the use of narrow bearings, which are not included, so ensure compatible bearings are sourced separately.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to verify proper clearances and fitment. No modifications to the engine block or related components are typically necessary, making this crankshaft a straightforward upgrade for performance builds or engine rebuilds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOne (1) Callies Forged 4340 Steel Crankshaft\u003c\/li\u003e\n\u003cli\u003eMechanical and electrical failure coverage plan\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePerformance enthusiasts upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram Hemi engines\u003c\/li\u003e\n\u003cli\u003eEngine builders requiring a durable, high-strength crankshaft for street or track use\u003c\/li\u003e\n\u003cli\u003eRacers and tuners seeking improved engine reliability under high RPM and load conditions\u003c\/li\u003e\n\u003cli\u003eAnyone needing a direct-fit forged crankshaft for 5.7L to 6.4L Hemi engine platforms\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Callies","offers":[{"title":"Default Title","offer_id":47379541622996,"sku":"YYKE18-CS","price":1011.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/4693_cpi-yy12e48-cs_xl_4c1bed54-ce92-462a-a242-cdc1a7aa9865.webp?v=1766655016","url":"https:\/\/fasthemis.com\/products\/callies-compstar-crankshafts-yyk-e18-cs-cpi-yyke18-cs","provider":"FastHemis","version":"1.0","type":"link"}