{"product_id":"arp-sbc-geniii-ls-3-8-flange-12pt-header-bolt-kit","title":"ARP SBC\/GENIII LS 3\/8 Flange 12pt Header Bolt Kit","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e134-1202\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 672036041984\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eARP SBC\/GENIII LS 3\/8 Flange 12pt Header Bolt Kit 1955-2013 Chevy Small Block 1997-2007 Gen III LS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eSecure exhaust headers on Small Block Chevy engines from 1955-2013 and Gen III LS engines from 1997-2007 with the ARP SBC\/GENIII LS 3\/8 Flange 12pt Header Bolt Kit. This complete kit of twelve 3\/8-16 x 1-inch bolts fits 3\/8-inch thick flanges on performance headers. Heat-treated chromoly construction handles extreme temperatures and engine vibration for reliable clamping and leak-free seals.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChromoly Steel Build:\u003c\/strong\u003e Forged 8740 alloy heat-treated to 180,000 psi tensile strength resists fatigue from exhaust heat cycles and torque loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Point Head Design:\u003c\/strong\u003e Delivers firm grip during installation allowing full torque application without cam-out or rounding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Oxide Finish:\u003c\/strong\u003e Shields against rust and seizing in humid or salty environments for repeated removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision 3\/8-16 Threads:\u003c\/strong\u003e Rolled threads provide smooth engagement and consistent preload on 3\/8-inch flanges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit of 12 Bolts:\u003c\/strong\u003e Exact quantity for both cylinder banks on V8 SBC and Gen III LS header setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm header flanges measure exactly 3\/8-inch thick for proper fit.\u003c\/li\u003e\n\u003cli\u003ePair with ARP thread lube to prevent galling and achieve accurate torque.\u003c\/li\u003e\n\u003cli\u003eLightweight at 1 lb for easy handling and fast delivery.\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\u003eApply assembly lube to threads and under bolt heads then torque to 30-35 ft-lbs in crisscross sequence.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard SBC and Gen III LS header flanges no additional hardware needed.\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\u003e1955-2003\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSmall Block Engines\u003c\/td\u003e\n\u003ctd\u003e262-400 V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1965-1982\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eAll V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-2002\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eAll V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eLS1 C5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998-2002\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eLS1 Z28 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2007\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L 4.8L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eExpress Van\u003c\/td\u003e\n\u003ctd\u003eLS1 Gen III V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2006\u003c\/td\u003e\n\u003ctd\u003ePontiac\u003c\/td\u003e\n\u003ctd\u003eGTO\u003c\/td\u003e\n\u003ctd\u003eLS1 LS2\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\u003eProven fasteners in NHRA Top Fuel and Pro Stock racing engines.\u003c\/li\u003e\n\u003cli\u003eReliable clamping force in high-performance street and track builds.\u003c\/li\u003e\n\u003cli\u003eUSA-made with exact tolerances for engine builders.\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 fit Gen IV LS engines?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Designed for Gen III LS and SBC with 3\/8-inch flanges. Gen IV headers often use thicker flanges measure yours to confirm compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and finish are used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e 8740 chromoly steel heat-treated to 180,000 psi with black oxide coating for corrosion protection and easy reuse.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty coverage applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e ARP offers limited lifetime warranty against breakage when installed and torqued correctly per instructions.\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\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 Original ARP box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 lb\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":39861237121103,"sku":"ARP134-1202","price":37.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/arp-sbcgeniii-ls-38-flange-12pt-header-bolt-kit-arp.jpg?v=1768369915","url":"https:\/\/www.blackopsautoworks.com\/products\/arp-sbc-geniii-ls-3-8-flange-12pt-header-bolt-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}