{"product_id":"arp-4-2125in-ring-compressor","title":"ARP 4.2125in Ring Compressor","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e900-2125\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 672036039127\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eARP 4.2125in Ring Compressor for Precision Piston Installation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe ARP 4.2125in Ring Compressor is a precision-engineered tool designed to compress piston rings securely during installation in 4.2125 inch bore cylinders. It fits a range of performance engines requiring exact bore sizing found in custom small and big block builds. This tool provides even clamping pressure to prevent ring damage and ensure smooth piston seating for dependable engine performance.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact Bore Fit:\u003c\/strong\u003e Sized precisely at 4.2125 inches to match cylinder bores without slippage or distortion during use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered Profile:\u003c\/strong\u003e Gradual taper guides piston into block effortlessly reducing installation time and risk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Steel Build:\u003c\/strong\u003e Forged from high-strength steel to withstand repeated professional use in engine shops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent Clamp Load:\u003c\/strong\u003e Applies uniform pressure on rings for flawless seating in street or race applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit Design:\u003c\/strong\u003e Includes matched components and torque guide for immediate professional results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVerify bore diameter measures exactly 4.2125 inches before use\u003c\/li\u003e\n\u003cli\u003eLubricate rings with ARP Ultra-Torque for optimal compression and release\u003c\/li\u003e\n\u003cli\u003eCompact design ships easily without special handling requirements\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\u003eClean cylinder walls thoroughly and apply lube to rings per ARP guidelines\u003c\/li\u003e\n\u003cli\u003eUse in sequence with piston installation tools for best results\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\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSmall Block \/ Big Block\u003c\/td\u003e\n\u003ctd\u003e4.2125in Custom Bore Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eFE \/ Windsor \/ Cleveland\u003c\/td\u003e\n\u003ctd\u003e4.2125in Custom Bore Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eMopar\u003c\/td\u003e\n\u003ctd\u003eLA \/ B \/ RB Series\u003c\/td\u003e\n\u003ctd\u003e4.2125in Custom Bore Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003ePontiac\u003c\/td\u003e\n\u003ctd\u003eV8 Engines\u003c\/td\u003e\n\u003ctd\u003e4.2125in Custom Bore Builds\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\u003eARP builds tools to the same exacting standards as their race-winning fasteners\u003c\/li\u003e\n\u003cli\u003eProven durability in high-volume engine assembly environments\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures repeatable accuracy in every use\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 exact bore size does this tool support?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e It fits 4.2125 inch cylinder bores precisely for secure ring compression in performance engine assemblies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material construction does ARP use for this ring compressor?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Constructed from robust high-strength steel to handle demanding rebuilds and resist deformation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does it include any usage instructions or warranty?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Kit contains a best-practices guide with torque sequences and ARP provides manufacturer warranty against defects\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 Secure box 6in x 4in x 3in\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":43739367538767,"sku":"ARP900-2125","price":68.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/arp-4_2125in-ring-compressor-arp.jpg?v=1768370999","url":"https:\/\/www.blackopsautoworks.com\/products\/arp-4-2125in-ring-compressor","provider":"Black Ops Auto Works","version":"1.0","type":"link"}