{"product_id":"acl-race-series-bmw-n54-n55-s55-conrod-bearings-6b1584h-std","title":"ACL Race Series BMW N54 N55 S55 Conrod Bearings – 6B1584H\/STD","description":"\u003cp\u003eACL Race Series conrod bearing set for compatible BMW N54, N55 and S55 3.0-litre engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number: 6B1584H\/STD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ACL Race Series 6B1584H\/STD bearing set is a performance replacement conrod bearing set for compatible BMW N54, N55 and S55 engines.\u003c\/p\u003e\n\u003cp\u003eThis listing is for the standard-size bearing set.\u003c\/p\u003e\n\u003ch2\u003eACL Race Series Construction\u003c\/h2\u003e\n\u003cp\u003eACL Race Series bearings use performance-focused bearing construction including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTri-metal bearing construction\u003c\/li\u003e\n\u003cli\u003eHigh-strength steel backing\u003c\/li\u003e\n\u003cli\u003eIncreased bearing crush and retention\u003c\/li\u003e\n\u003cli\u003ePerformance-oriented bearing geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCorrect crankshaft journal condition and bearing clearance should always be checked during installation.\u003c\/p\u003e\n\u003ch2\u003eWhat Is Included?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComplete ACL Race Series 6B1584H\/STD conrod bearing set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNew connecting-rod bolts are not included with this standalone product.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eBMW S55 Applications\u003c\/h2\u003e\n\u003cp\u003eSuitable S55 applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW F87 M2 Competition\u003c\/li\u003e\n\u003cli\u003eBMW F87 M2 CS\u003c\/li\u003e\n\u003cli\u003eBMW F80 M3\u003c\/li\u003e\n\u003cli\u003eBMW F80 M3 Competition\u003c\/li\u003e\n\u003cli\u003eBMW F80 M3 CS\u003c\/li\u003e\n\u003cli\u003eBMW F82\/F83 M4\u003c\/li\u003e\n\u003cli\u003eBMW F82\/F83 M4 Competition\u003c\/li\u003e\n\u003cli\u003eBMW F82 M4 CS\u003c\/li\u003e\n\u003cli\u003eBMW F82 M4 GTS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEngine: BMW S55B30\u003c\/p\u003e\n\u003cp\u003eThe same bearing part number is also used for compatible BMW N54B30 and N55B30 applications.\u003c\/p\u003e\n\u003ch2\u003eWhy Do Rod Bearings Wear?\u003c\/h2\u003e\n\u003cp\u003eConnecting-rod bearings are highly loaded internal engine components.\u003c\/p\u003e\n\u003cp\u003eDuring normal engine operation, the crankshaft journal is supported by a thin film of engine oil between the journal and bearing surface.\u003c\/p\u003e\n\u003cp\u003eBearing condition can be affected by factors including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMileage and engine hours\u003c\/li\u003e\n\u003cli\u003eOil condition\u003c\/li\u003e\n\u003cli\u003eOil contamination\u003c\/li\u003e\n\u003cli\u003eEngine operating temperature\u003c\/li\u003e\n\u003cli\u003eHigh engine load\u003c\/li\u003e\n\u003cli\u003eHigh-RPM or track use\u003c\/li\u003e\n\u003cli\u003eCrankshaft journal condition\u003c\/li\u003e\n\u003cli\u003eBearing clearance\u003c\/li\u003e\n\u003cli\u003eGeneral long-term wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eS55 Installation at Swift Performance\u003c\/h2\u003e\n\u003cp\u003eFor BMW S55 customers, Swift Performance also offers these ACL Race Series bearings as part of our crank-hub workshop package.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eWhen carried out alongside our S55 crank hub installation, the ACL rod-bearing upgrade is:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003cspan style=\"text-decoration: underline;\"\u003e£500 including VAT\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eACL Race Series 6B1584H\/STD bearings\u003c\/li\u003e\n\u003cli\u003eNew OEM BMW connecting-rod bolts\u003c\/li\u003e\n\u003cli\u003eInstallation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause our S55 crank-hub procedure already requires removal of the engine sump, carrying out the rod bearings at the same time avoids a significant amount of duplicated labour.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/swiftperformance.co.uk\/products\/bmw-s55-crank-hub-upgrade-insane-4-pin\"\u003e\u003cstrong\u003eView our BMW S55 Crank Hub \u0026amp; ACL Rod Bearing Package\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"ACL Race Series","offers":[{"title":"Default Title","offer_id":57369627984247,"sku":"6B1584H\/STD","price":199.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/8489\/7720\/files\/ACLS56.webp?v=1786444407","url":"https:\/\/swiftperformance.co.uk\/products\/acl-race-series-bmw-n54-n55-s55-conrod-bearings-6b1584h-std","provider":"Swift Performance","version":"1.0","type":"link"}