{"product_id":"acl-6b2639h-025-vq35hr-rod-bearing-set","title":"ACL Nissan DETT VQ35HR DOHC 4V TT 0.025mm Oversized High Performance Rod Bearing Set","description":"\u003ch4\u003ePrecision Fit for High RPM VQ35HR Builds\u003c\/h4\u003e\u003cp\u003eThe 6B2639H-.025 rod bearing set gives VQ35HR engine builders a durable, tight tolerance bearing option for performance rebuilds that call for a 0.025mm oversize.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e6B2639H-.025 features ACL Race Series trimetal construction for high load durability\u003c\/li\u003e\n\u003cli\u003eIncreased eccentricity on the 6B2639H-.025 compensates for bore distortion at high RPM\u003c\/li\u003e\n\u003cli\u003eEnlarged ID chamfers accommodate performance crankshaft fillet radii\u003c\/li\u003e\n\u003cli\u003eTight wall thickness tolerance for consistent, predictable oil clearance\u003c\/li\u003e\n\u003cli\u003e6B2639H-.025 is sized 0.025mm over standard for engines with reconditioned journals\u003c\/li\u003e\n\u003cli\u003eReduced overlay thickness on the 6B2639H-.025 improves fatigue resistance under sustained high RPM use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment Table\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2021\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e370Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2020\u003c\/td\u003e\n\u003ctd\u003eInfiniti\u003c\/td\u003e\n\u003ctd\u003eG37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2020\u003c\/td\u003e\n\u003ctd\u003eInfiniti\u003c\/td\u003e\n\u003ctd\u003eQ50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003e6B2639H-.025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e9315726465356\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003eVQ35HR 3.5L DOHC 4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eConnecting Rod, Trimetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e0.025mm Oversized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold As\u003c\/td\u003e\n\u003ctd\u003eSet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eFull set of 6B2639H-.025 connecting rod bearings for one VQ35HR engine\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eAbout ACL\u003c\/h4\u003e\u003cp\u003eACL Bearing Company has manufactured engine bearings in Australia for decades, supplying Race Series trimetal bearings to builders who need consistent clearance control and high load durability for street and race engines.\u003c\/p\u003e\u003ch4\u003eRelated Parts on Our Site\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/products\/ebc-usr2066-bmw-230-rear-rotors\"\u003eEBC USR2066 Rear Rotors for BMW 230\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the 6B2639H-.025?\u003c\/strong\u003e\u003cp\u003eThe 6B2639H-.025 is an ACL Race Series oversized connecting rod bearing set for the Nissan and Infiniti VQ35HR engine, sized 0.025mm over standard.\u003c\/p\u003e\u003cstrong\u003eWhich vehicles use the 6B2639H-.025?\u003c\/strong\u003e\u003cp\u003eThe 6B2639H-.025 fits the Nissan 370Z, Infiniti G37, and Infiniti Q50 with the VQ35HR engine.\u003c\/p\u003e\u003cstrong\u003eWhy choose an oversized bearing like the 6B2639H-.025?\u003c\/strong\u003e\u003cp\u003eThe 6B2639H-.025 is used when the crankshaft journals have been machined 0.025mm undersize during a rebuild.\u003c\/p\u003e\u003cstrong\u003eIs the 6B2639H-.025 suitable for high RPM use?\u003c\/strong\u003e\u003cp\u003eYes, the 6B2639H-.025 uses increased eccentricity and enlarged chamfers designed for high RPM performance builds.\u003c\/p\u003e\u003cstrong\u003eWhat material is the 6B2639H-.025 made from?\u003c\/strong\u003e\u003cp\u003eThe 6B2639H-.025 uses ACL's trimetal construction with a lead tin copper overlay.\u003c\/p\u003e\u003cstrong\u003eDoes the 6B2639H-.025 fit the VQ37VHR engine?\u003c\/strong\u003e\u003cp\u003eNo, the 6B2639H-.025 is sized for the VQ35HR engine specifically, though ACL offers separate part numbers for VQ37VHR applications.\u003c\/p\u003e\u003cstrong\u003eHow many bearings come in the 6B2639H-.025 set?\u003c\/strong\u003e\u003cp\u003eThe 6B2639H-.025 includes a full set of rod bearings sufficient for one VQ35HR engine.\u003c\/p\u003e\u003cstrong\u003eShould I measure clearance after installing the 6B2639H-.025?\u003c\/strong\u003e\u003cp\u003eYes, ACL recommends verifying assembled oil clearance with a bore gauge after installing the 6B2639H-.025.\u003c\/p\u003e\u003ch4\u003eInstall Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eDisassemble the engine and inspect crankshaft journals.\u003c\/li\u003e\n\u003cli\u003eConfirm journal size matches the 6B2639H-.025 oversize spec.\u003c\/li\u003e\n\u003cli\u003eClean bearing bores and journals thoroughly.\u003c\/li\u003e\n\u003cli\u003eInstall the 6B2639H-.025 bearings into the rod and cap.\u003c\/li\u003e\n\u003cli\u003eTorque rod bolts to the engine manufacturer's specification.\u003c\/li\u003e\n\u003cli\u003eVerify assembled oil clearance with a bore gauge.\u003c\/li\u003e\n\u003cli\u003eComplete engine reassembly.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ACL","offers":[{"title":"Default Title","offer_id":46196188807247,"sku":"ACL6B2639H-.025","price":108.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/acl-6b2639h-025-vq35hr-rod-bearing-set-1.webp?v=1785163850","url":"https:\/\/www.blackopsautoworks.com\/products\/acl-6b2639h-025-vq35hr-rod-bearing-set","provider":"Black Ops Auto Works","version":"1.0","type":"link"}