{"product_id":"arp-main-stud-conversion-kit-e46-m3","title":"ARP Main Stud Conversion Kit for BMW E46 M3 S54 3.2L – 8740 Chromoly, 200,000 psi Engine Bottom End Main Cap Studs","description":"\u003cdiv\u003e\n  \u003ch2\u003eARP Main Stud Conversion Kit for BMW E46 M3 S54 3.2\u003c\/h2\u003e\n\n  \u003cp\u003eUpgrade the bottom end of your BMW E46 M3 S54 with the ARP Main Stud Conversion Kit. Built from premium 8740 chromoly steel and heat treated in-house to an incredible 200,000 psi tensile strength, these ARP main studs deliver rock-solid clamping force and long-term reliability for performance builds, track days and fast road use. Precision J-form threads are rolled after heat treatment for superior thread integrity, giving a stronger, more durable engagement than standard OEM main bolts. The kit includes hardened parallel-ground washers and aerospace quality nuts for consistent torque and repeatable preload.\u003c\/p\u003e\n\n  \u003cp\u003eIf you are rebuilding an S54, chasing reliability at high RPM or simply want proven engine fasteners you can trust, this ARP main stud kit is a must-have. Expect reduced crankshaft flex and less main cap fretting compared with factory hardware, helping to keep bearing clearances stable and the bottom end secure under sustained load.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eDirect-fit ARP main stud conversion for BMW E46 M3 with S54 3.2 engine\u003c\/li\u003e\n    \u003cli\u003e8740 chromoly steel construction with 200,000 psi tensile strength\u003c\/li\u003e\n    \u003cli\u003ePrecision J-form threads rolled after heat treatment for superior strength\u003c\/li\u003e\n    \u003cli\u003eIncludes hardened parallel-ground washers and aerospace quality nuts\u003c\/li\u003e\n    \u003cli\u003eImproves clamping force and bottom-end rigidity\u003c\/li\u003e\n    \u003cli\u003eHelps reduce crankshaft flex and main cap fretting\u003c\/li\u003e\n    \u003cli\u003eComplete hardware for main bolt to stud conversion\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFitment\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW E46 M3 with S54 3.2L engine\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat is included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eMain studs\u003c\/li\u003e\n    \u003cli\u003eHardened parallel-ground washers\u003c\/li\u003e\n    \u003cli\u003eAerospace quality nuts\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhy choose ARP and Nforcd\u003c\/h3\u003e\n  \u003cp\u003eWe use ARP main studs on our own S54 builds and customer cars, and the results have been outstanding. Customers consistently report improved confidence in the bottom end, stable oil clearances and dependable torque retention after heat cycles. ARP fasteners are the industry standard for high performance BMW engine builds, and this kit is the go-to choice for the E46 M3 S54.\u003c\/p\u003e\n\n  \u003ch3\u003eInstallation and support\u003c\/h3\u003e\n  \u003cp\u003eProfessional installation is recommended for best results, including correct cleaning, lubrication and torque procedures. Want us to fit it for you? Nforcd offers expert installation in Warwickshire. Request a fitting quote at \u003ca href=\"mailto:Sales@nforcd.com\"\u003eSales@nforcd.com\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eSearch-friendly terms\u003c\/h3\u003e\n  \u003cp\u003eE46 M3 ARP main studs, BMW S54 ARP main stud kit, ARP 8740 chromoly main studs, S54 main bearing cap studs, E46 M3 bottom end hardware, BMW S54 engine rebuild fasteners, ARP main cap studs E46 M3, 200,000 psi ARP studs, performance engine fasteners BMW, E46 M3 S54 main stud conversion, ARP fasteners UK, track day engine build E46 M3, high RPM S54 bottom end upgrade.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Performance M","offers":[{"title":"Default Title","offer_id":42447196029116,"sku":"ES2576280","price":201.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/9465\/6700\/products\/studconversion__29778.1536054321_a50efa13-069a-43d5-a7d8-8a12ac2fb3dc.jpg?v=1706094858","url":"https:\/\/www.nforcd.com\/products\/arp-main-stud-conversion-kit-e46-m3","provider":"Nforcd","version":"1.0","type":"link"}