{"product_id":"michigan-motorsports-ls-main-bolt-stud-kit-fits-1997-2013-ls-engines-high-strength-steel-restores-factory-torque","title":"Michigan Motorsports LS Main Bolt \u0026 Stud Kit — Fits 1997–2013 LS Engines, High‑Strength Steel Restores Factory Torque","description":"\u003cp\u003e\u003cstrong\u003eHeavy-duty replacement main bolts and studs engineered to restore factory torque, reinforce the bottom end, and stabilize crankshaft alignment in 1997–2013 LS engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Michigan Motorsports LS Main Bolt \u0026amp; Stud Kit is a complete fastener set designed to replace worn factory main bolts while adding main studs where extra reinforcement matters most. Built from high-strength steel, the kit restores proper clamping force and helps prevent main cap walk, stretched bolts, and bearing misalignment — problems that commonly arise in aging or high-stress LS V8s. It fits a broad range of LS variants (4.8L–6.2L, LS1–LS3, LQ4, LM7, LC9, LR4, L96, L76) and suits both stock rebuilds and performance builds with forced induction or high RPM use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit improve crankshaft stability?\u003c\/h3\u003e\n\u003cp\u003eBy replacing fatigued factory bolts and adding studs in key positions, the kit increases clamping consistency and distributes load across main caps more evenly. The result is reduced lateral movement of the main caps and better crankshaft alignment under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMain studs replace specific bolts to reduce main cap walk.\u003c\/li\u003e\n  \u003cli\u003eHigh-strength steel resists stretch and preserves torque settings.\u003c\/li\u003e\n  \u003cli\u003eRestoring factory torque specs improves bearing alignment and longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my LS engine and what models does it support?\u003c\/h3\u003e\n\u003cp\u003eThe kit is made as a direct replacement for factory main hardware used across many Gen III\/IV Chevrolet LS engines produced from 1997 through 2013. It covers common displacements and platform codes used in cars and trucks, making it a versatile option for swaps and rebuilds.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L LS-series engines.\u003c\/li\u003e\n  \u003cli\u003eFits LS1, LS2, LS3 and truck engine codes like LQ4, LM7, LC9, LR4, L96, L76.\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct-fit installation using factory-size locations and torque specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this kit suitable for forced-induction or high-RPM builds?\u003c\/h3\u003e\n\u003cp\u003eYes — the added studs and premium steel construction increase the bottom-end's ability to tolerate extreme loads typical of turbocharged, supercharged, or high-revving engines. They don’t change internal geometry but they do maintain consistent clamp and alignment under harsh conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImproved load distribution reduces risk of bearing misalignment under boost.\u003c\/li\u003e\n  \u003cli\u003eHigh-strength materials resist thermal and torque-induced deformation.\u003c\/li\u003e\n  \u003cli\u003eRecommended when upgrading to higher horsepower or forced-induction setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use this kit during a rebuild or swap?\u003c\/h3\u003e\n\u003cp\u003eThe kit is intended to be installed in place of worn main bolts and to install studs where noted in build guides. Always follow service manual torque procedures and use appropriate thread prep or locking methods as specified for the engine application.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace all factory main bolts with supplied hardware where required.\u003c\/li\u003e\n  \u003cli\u003eInstall studs in designated locations and torque to specification per manual.\u003c\/li\u003e\n  \u003cli\u003eUse proper thread locker or sealant only if the build manual calls for it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Engine builders, hot-rodders, and mechanics doing LS rebuilds, swaps, or power upgrades who want to restore factory clamping force while adding reinforcement for high-stress use. Whether refreshing a daily-driven truck, preparing a high-horsepower street\/track engine, or assembling a forced-induction LS swap, this Michigan Motorsports kit supplies robust, direct-fit fasteners to help protect the crank, mains, and bearings from the consequences of worn or inadequate main hardware.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit replace all factory main bolts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it includes a full set of replacement bolts and studs designed to substitute factory main hardware for compatible LS engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this kit on a turbo or supercharged LS?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Absolutely — the added studs and high-strength steel improve bottom-end stability for forced-induction and high-RPM applications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Michigan Motorsports","offers":[{"title":"Default Title","offer_id":48081442668702,"sku":"B0CYM7V3CP","price":184.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/michigan-motorsports-front-packaging_65e53ffc-66a6-44a1-8853-ad71bb0fb2eb.jpg?v=1785804680","url":"https:\/\/northtrailauto.ca\/products\/michigan-motorsports-ls-main-bolt-stud-kit-fits-1997-2013-ls-engines-high-strength-steel-restores-factory-torque","provider":"North Trail Auto","version":"1.0","type":"link"}