{"product_id":"arp-chevy-4-cylinder-hex-head-stud-kit","title":"ARP Cylinder Head Stud Kit for Chevy 4-cylinder hex","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e131-4001\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 672036001520\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eARP Cylinder Head Stud Kit for 1977-1993 Chevy 4-Cylinder Hex\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eARP 131-4001 Cylinder Head Stud Kit delivers reliable clamping force for 1977-1993 Chevrolet 4-cylinder Iron Duke engines found in models like Cavalier, Citation, Celebrity and S10. These hex head studs use premium 8740 chromoly construction to handle high-performance demands and resist head gasket failures. Precision processes ensure heads seat perfectly every time.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8740 Chromoly Material:\u003c\/strong\u003e Heat-treated to 190,000 PSI tensile strength for dependable performance under extreme cylinder pressures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenterless Ground:\u003c\/strong\u003e Ensures concentricity and straightness so cylinder heads and gaskets align without binding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePost-Heat-Treat Thread Rolling:\u003c\/strong\u003e Provides 2000% greater fatigue resistance compared to pre-heat-treat threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUndercut Studs:\u003c\/strong\u003e Equalizes stretch on shorter studs for uniform clamping that accounts for gasket compression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Oxide Finish:\u003c\/strong\u003e Made in USA with ARP stamping on each stud to confirm authenticity and corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse ARP thread lubricant for accurate torque values during installation\u003c\/li\u003e\n\u003cli\u003eInspect studs for damage before reuse in performance applications\u003c\/li\u003e\n\u003cli\u003eCompact kit includes studs, washers and instructions\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 ARP Ultra-Torque assembly lube to stud threads and hardened washers\u003c\/li\u003e\n\u003cli\u003eTorque in sequence to ARP specs: 65 ft-lbs for 8740 studs with lube\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\u003e1980-1985\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCitation\u003c\/td\u003e\n\u003ctd\u003e2.5L L4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1982-1988\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCavalier\u003c\/td\u003e\n\u003ctd\u003e2.5L L4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1982-1985\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCelebrity\u003c\/td\u003e\n\u003ctd\u003e2.5L L4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1983-1990\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eS10 Pickup\u003c\/td\u003e\n\u003ctd\u003e2.5L L4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1985-1990\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eAstro\u003c\/td\u003e\n\u003ctd\u003e2.5L L4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1986-1988\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSpectrum\u003c\/td\u003e\n\u003ctd\u003e1.5L L4\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 professional engine builders for competition engines\u003c\/li\u003e\n\u003cli\u003eVertical rack heat treatment for full penetration and consistency\u003c\/li\u003e\n\u003cli\u003eThread rolled and ground to exact tolerances for flawless fit\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 What Chevy engines does ARP 131-4001 fit?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Designed for 1977-1993 Chevrolet 4-cylinder 2.5L Iron Duke engines in Citation, Cavalier, Celebrity, S10 and similar models with hex head configuration\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 chrome moly steel with black oxide finish, heat-treated to 190,000 PSI tensile strength\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty applies and installation tips?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e ARP provides warranty against manufacturing defects. always use ARP lube, torque in 3 steps and recheck after heat cycles\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 or 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 1 box, 9in x 6in x 1in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.65 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":43555497705551,"sku":"ARP131-4001","price":131.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/arp-cylinder-head-stud-kit-for-chevy-4-cylinder-hex-arp.jpg?v=1768370156","url":"https:\/\/www.blackopsautoworks.com\/products\/arp-chevy-4-cylinder-hex-head-stud-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}