{"product_id":"michigan-motorsports-four-pole-58x-3-bolt-cam-gear-sprocket","title":"Michigan Motorsports Four Pole 58X 3-Bolt Cam Gear Sprocket","description":"\u003cp\u003eIn this review the Michigan Motorsports Four Pole 58X 3-Bolt Cam Gear Sprocket is evaluated as a direct replacement cam sprocket for Gen IV LS engines. The bottom line: this part is for builders and technicians who need a precise, OEM-style cam signal for 58X crank reluctor systems; its four-pole design and 3-bolt fit make it the single best swap when replacing GM Part #12586481 on 4.8L, 5.3L, 5.7L, and 6.0L LS engines. The reviewer found it reliable in stock and performance timing setups and particularly valuable when accurate ECU synchronization is required.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect replacement:\u003c\/strong\u003e Made to replace GM Part #12586481 so installers can expect a factory-style fit on LS2, LS3, and other Gen IV engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-pole signal:\u003c\/strong\u003e The 4X pickup provides a clean cam signal for engines using a 58X crank reluctor, improving ECU timing accuracy and ignition control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine compatibility:\u003c\/strong\u003e Designed specifically for 4.8L, 5.3L, 5.7L, and 6.0L LS-based engines, reducing fitment guesswork during rebuilds or swaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Precision-machined from heat-treated, high-strength material to resist wear at high RPMs and under increased power demands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming chain compatibility:\u003c\/strong\u003e Works with both stock and aftermarket timing chains, so it fits in stock rebuilds and modified, high-performance builds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis cam sprocket suits engine builders, professional mechanics, and DIY enthusiasts replacing a worn or damaged cam gear on Gen IV LS platforms that use a 58X crank reluctor. It is particularly useful when accurate cam position sensing is required for EFI tuning, high-RPM operation, or when swapping components that must retain factory signal characteristics.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include owners of older LS generations that do not use a 58X crank reluctor or anyone needing an adjustable or lightweight aftermarket cam gear for extreme motorsport applications; this is a direct replacement OEM-style part, not a performance-adjustable sprocket.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect OEM-style fit for GM Part #12586481 replacements, simplifying installation.\u003c\/li\u003e\n\u003cli\u003eFour-pole design yields consistent cam signal for proper ECU communication on 58X-equipped engines.\u003c\/li\u003e\n\u003cli\u003eRobust, precision-machined construction tolerates high RPMs and modified engine conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eNot adjustable; builders seeking timing fine-tuning will need a different aftermarket cam gear.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMichigan Motorsports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003e4.8L, 5.3L, 5.7L, 6.0L LS engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible engines\u003c\/td\u003e\n\u003ctd\u003eLS2, LS3 and other Gen IV LS engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReluctor type\u003c\/td\u003e\n\u003ctd\u003e58X crank reluctor (four-pole cam signal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e3-bolt cam sprocket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement for\u003c\/td\u003e\n\u003ctd\u003eGM Part #12586481\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Michigan Motorsports Four Pole 58X 3-Bolt Cam Gear Sprocket is a sensible, cost-effective choice for anyone needing a precise, OEM-style cam signal on Gen IV LS engines. It delivers durable construction and the correct four-pole output for 58X systems, making it good value for stock rebuilds and many performance builds where adjustability is not required.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my LS3?\u003c\/strong\u003e\u003cbr\u003eYes, the sprocket is specified as compatible with LS3 and other Gen IV LS engines using a 58X crank reluctor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this sprocket adjustable for timing?\u003c\/strong\u003e\u003cbr\u003eNo, this is a direct OEM-style 3-bolt replacement and does not provide adjustable timing features.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use it with aftermarket timing chains?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed to work with both OEM and aftermarket timing chain sets.\u003c\/p\u003e","brand":"Michigan Motorsports","offers":[{"title":"Default Title","offer_id":48615912243419,"sku":"B07QM2SJW1","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71nrPalBmJL._AC_SL1500.jpg?v=1778361720","url":"https:\/\/gearmusthave.com\/products\/michigan-motorsports-four-pole-58x-3-bolt-cam-gear-sprocket","provider":"GearMustHave","version":"1.0","type":"link"}