{"product_id":"ryanstar-racing-exhaust-manifold-clamp-for-gm-4-8l-5-3l-6-0l-external-repair-oem-fit","title":"RYANSTAR RACING Exhaust Manifold Clamp for GM 4.8L\/5.3L\/6.0L - External Repair, OEM Fit","description":"\u003cp\u003e\u003cstrong\u003eRYANSTAR RACING Exhaust Manifold Clamp 11518860 (917-107) is an external repair clamp designed to seal a leaking exhaust manifold to the cylinder head without removing the original studs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis clamp provides a practical, bolt-on solution when manifold studs or bolts have failed. Engineered to match OEM fit and finish, it targets GM small-block V8 and related V6\/LS-series engines across many Silverado, Sierra, Yukon, Escalade, and Hummer applications. The design compresses against the cylinder head face to restore exhaust sealing while minimizing disassembly, making it a fast, cost-effective alternative to replacing studs or pulling the manifold.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this clamp restore a leaking exhaust manifold?\u003c\/h3\u003e\n\u003cp\u003eThe clamp wraps around the manifold flange and presses the gasket area against the cylinder head, creating a continuous external seal. Because it clamps externally, there’s no need to remove broken studs or extract captured hardware from the head.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAttaches directly to the cylinder head face to compress sealing surface\u003c\/li\u003e\n  \u003cli\u003eEliminates the need to remove broken or seized studs\u003c\/li\u003e\n  \u003cli\u003eFits over common LS and small-block manifold flanges for wide compatibility\u003c\/li\u003e\n  \u003cli\u003eReduces labor time compared with stud extraction or manifold replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and vehicles is this clamp compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis clamp supports a broad list of GM engine codes and LS-series families found in light trucks and SUVs. It’s specified for applications using 4.8L, 5.3L and 6.0L displacements and many high-performance LS derivatives.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement part numbers: 11518860 and 917-107\u003c\/li\u003e\n  \u003cli\u003eCompatible engine codes include L20, LC9, LQ4, LS1, LS2, LS3, LT1, LT2, LT4 and more\u003c\/li\u003e\n  \u003cli\u003eFits models like Silverado, Sierra, Yukon, Denali, Escalade and Hummer\u003c\/li\u003e\n  \u003cli\u003eWorks across both stock and aftermarket manifold flanges of listed engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and quality checks ensure long-term performance?\u003c\/h3\u003e\n\u003cp\u003eThe clamp is manufactured from durable metals with precision forming and finishing to meet OEM-style tolerances. Quality inspection at multiple stages helps ensure each unit performs reliably under exhaust temperatures and vibration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMade from premium metal alloys for heat and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003ePrecision-formed to maintain flange alignment and consistent clamping force\u003c\/li\u003e\n  \u003cli\u003eSubjected to quality checks to verify fit and sealing capability\u003c\/li\u003e\n  \u003cli\u003ePackaged and shipped with customer support for any fitment concerns\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will installing this clamp affect repair time and cost?\u003c\/h3\u003e\n\u003cp\u003eBecause the clamp installs externally, it significantly cuts repair time versus extracting broken studs or replacing the manifold. Reduced labor and simpler installation translate directly to lower repair bills while restoring exhaust integrity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstalls without removing manifold in many cases, saving hours of labor\u003c\/li\u003e\n  \u003cli\u003eLowers parts cost compared with a new manifold or head work\u003c\/li\u003e\n  \u003cli\u003eUseful as a stopgap or long-term fix depending on vehicle needs\u003c\/li\u003e\n  \u003cli\u003eIdeal for DIY mechanics and professional shops seeking faster turnaround\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The RYANSTAR RACING Exhaust Manifold Clamp 11518860 is intended for vehicle owners, DIY enthusiasts, and repair shops tackling exhaust leaks caused by damaged or broken manifold fasteners on compatible GM engines. If you want a dependable, OEM-oriented external clamp to restore sealing on 4.8L, 5.3L, 6.0L, and many LS-family applications without extensive teardown, this clamp is a practical, cost-conscious choice.\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 clamp fit my LS-series engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits many LS-family engines (LS1, LS2, LS3, LT1, LT4, etc.). Check listed engine codes and replacement numbers 11518860\/917-107 for exact compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install it without removing the manifold?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Often yes — the external clamp is designed to seal without extracting broken studs, cutting labor and complexity in many repairs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"RYANSTAR RACING","offers":[{"title":"Default Title","offer_id":55163050950999,"sku":"B0836CM318","price":30.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/ryanstar-racing-clamp-front-view.jpg?v=1790340974","url":"https:\/\/britishgarage.co.uk\/products\/ryanstar-racing-exhaust-manifold-clamp-for-gm-4-8l-5-3l-6-0l-external-repair-oem-fit","provider":"British Garage","version":"1.0","type":"link"}