{"product_id":"arp-bmc-a-series-9-studs-head-stud-kit","title":"ARP Cylinder Head Studs for BMC A Series, 9 studs 12-pt Nuts","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e206-4201\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 672036007966\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eARP Cylinder Head Studs for BMC A Series Engines 1958-2000 9 Studs 12-pt Nuts\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eARP 206-4201 Pro Series cylinder head studs deliver exceptional clamping force for BMC A-Series engines found in Mini MG Midget Austin Healey Sprite and similar models. These 9-stud kits with 12-point nuts use premium 8740 Chrome Moly alloy heat-treated to 190000 PSI for high-performance builds. Engine builders choose ARP for consistent stretch precise alignment and gasket sealing under extreme pressures.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8740 Chrome Moly Alloy:\u003c\/strong\u003e Heat-treated to 190000 PSI tensile strength ensures complete penetration and durability far beyond standard studs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenterless Ground:\u003c\/strong\u003e Precision machining creates concentric straight studs so cylinder heads and gaskets align perfectly without binding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Rolled After Heat-Treat:\u003c\/strong\u003e Provides 2000% higher fatigue strength compared to pre-heat-treat threading for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUndercut Design on Shorter Studs:\u003c\/strong\u003e Equalizes stretch across all studs for uniform clamping force and resistance to head gasket failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Point Nuts and Black Finish:\u003c\/strong\u003e Secure fastening with corrosion resistance made in USA with ARP stamp for authenticity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 803cc to 1275cc BMC A-Series engines verify displacement before purchase.\u003c\/li\u003e\n\u003cli\u003eTorque to ARP specifications using ARP moly or Ultra-Torque assembly lube.\u003c\/li\u003e\n\u003cli\u003ePackaged in protective racks to prevent damage during shipping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eChase blind holes with 14mm x 1.5 tap remove all debris before installing studs.\u003c\/li\u003e\n\u003cli\u003eCompatible with stock or performance head gaskets ARP washers included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1959-2000\u003c\/td\u003e\n\u003ctd\u003eAustin\/Morris\/Rover\u003c\/td\u003e\n\u003ctd\u003eMini\u003c\/td\u003e\n\u003ctd\u003eAll including Cooper Metro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1961-1979\u003c\/td\u003e\n\u003ctd\u003eMG\u003c\/td\u003e\n\u003ctd\u003eMidget\u003c\/td\u003e\n\u003ctd\u003eMK I-III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1958-1971\u003c\/td\u003e\n\u003ctd\u003eAustin Healey\u003c\/td\u003e\n\u003ctd\u003eSprite\u003c\/td\u003e\n\u003ctd\u003eMK I-IV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1958-1972\u003c\/td\u003e\n\u003ctd\u003eMorris\u003c\/td\u003e\n\u003ctd\u003eMinor\u003c\/td\u003e\n\u003ctd\u003e1000 1098cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1971\u003c\/td\u003e\n\u003ctd\u003eRiley\/Wolseley\u003c\/td\u003e\n\u003ctd\u003e1.3\/1300\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose ARP?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRelied on by top professional engine builders for all-out competition engines.\u003c\/li\u003e\n\u003cli\u003eVertical rack heat-treatment and proprietary processes for unmatched consistency.\u003c\/li\u003e\n\u003cli\u003eExacting tolerances and ARP2000 alloy options available for demanding applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit fit all BMC A-Series engines?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes fits 803cc 848cc 998cc 1098cc and 1275cc A-Series in Mini Midget Sprite and similar verify your engine code.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the material and finish?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e 8740 Chrome Moly alloy black oxide finish for strength and corrosion protection threads rolled post-heat-treat.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and torque specs?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e ARP lifetime warranty against failure torque studs to 65 ft-lbs in sequence using ARP lubricant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective box 8 x 6 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":43555502948431,"sku":"ARP206-4201","price":105.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/arp-cylinder-head-studs-for-bmc-a-series-9-studs-12-pt-nuts-arp.jpg?v=1768370307","url":"https:\/\/www.blackopsautoworks.com\/products\/arp-bmc-a-series-9-studs-head-stud-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}