{"product_id":"acl-race-series-main-bearing-set-standard-size-4m2633hx-std-350z-de-03-06","title":"ACL Race Series Main Bearing Set - Standard Size 4M2633HX-STD - 350Z DE 03-06","description":"\u003cstyle\u003e\n  .wl-listing { font-family: inherit; color: inherit; max-width: 100%; }\n  .wl-listing p { margin: 0 0 14px; line-height: 1.7; }\n  .wl-listing h2 { font-size: 1.1em; font-weight: 600; margin: 24px 0 10px; padding: 0; border: none; }\n  .wl-listing ul { margin: 0 0 16px; padding-left: 20px; }\n  .wl-listing ul li { margin-bottom: 6px; line-height: 1.6; }\n  .wl-listing .wl-lede { font-size: 1.05em; }\n  .wl-listing .wl-pull { border-left: 3px solid #1a6ab5; padding: 10px 16px; margin: 18px 0; font-weight: 500; background: #f4f8fd; border-radius: 0 4px 4px 0; }\n  .wl-listing .wl-table { width: 100%; border-collapse: collapse; margin: 12px 0 16px; font-size: 0.88em; }\n  .wl-listing .wl-table th { background: #f8f9fb; border: 1px solid #dde3ea; padding: 7px 10px; text-align: left; font-weight: 600; color: #374151; font-size: 0.78em; text-transform: uppercase; letter-spacing: 0.05em; }\n  .wl-listing .wl-table td { border: 1px solid #dde3ea; padding: 7px 10px; color: #4b5563; }\n  .wl-listing .wl-table tr:nth-child(even) td { background: #f8f9fb; }\n  .wl-listing .wl-fitment { background: #f8f9fb; border: 1px solid #dde3ea; border-radius: 6px; padding: 12px 16px; margin: 12px 0; }\n  .wl-listing .wl-fitment p { margin: 4px 0; font-size: 0.92em; }\n  .wl-listing .wl-closing { background: #f0f7ee; border: 1px solid #b6d9a8; border-radius: 6px; padding: 14px 18px; margin-top: 20px; }\n  .wl-listing .wl-closing p { margin: 0; font-size: 0.95em; }\n  .wl-listing .wl-divider { border: none; border-top: 1px solid #e5e7eb; margin: 20px 0; }\n  .wl-listing .wl-install { display: flex; gap: 12px; flex-wrap: wrap; margin: 12px 0 16px; }\n  .wl-listing .wl-install-box { flex: 1; min-width: 120px; background: #f8f9fb; border: 1px solid #dde3ea; border-radius: 6px; padding: 10px 14px; }\n  .wl-listing .wl-install-label { font-size: 0.7em; text-transform: uppercase; letter-spacing: 0.08em; color: #6b7280; margin: 0 0 3px; font-weight: 600; }\n  .wl-listing .wl-install-val { font-size: 0.92em; font-weight: 600; color: #111; margin: 0; }\n  .wl-listing .wl-notice-red { background: #fef2f2; border: 1px solid #fca5a5; border-radius: 6px; padding: 10px 14px; margin: 12px 0; font-size: 0.88em; color: #7f1d1d; }\n  .wl-listing .wl-notice-red strong { font-weight: 600; }\n  .wl-listing .wl-badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }\n  .wl-listing .wl-badge { display: inline-block; font-size: 0.75em; font-weight: 600; padding: 3px 10px; border-radius: 20px; letter-spacing: 0.04em; }\n  .wl-listing .wl-badge-blue { background: #E6F1FB; color: #0C447C; border: 1px solid #85B7EB; }\n  .wl-listing .wl-badge-green { background: #EAF3DE; color: #27500A; border: 1px solid #97C459; }\n  @media (max-width: 520px) {\n    .wl-listing .wl-install { flex-direction: column; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"wl-listing\"\u003e\n\u003cdiv class=\"wl-badge-row\"\u003e\n\u003cspan class=\"wl-badge wl-badge-blue\"\u003e4M2633HX-STD · ACL Race Series\u003c\/span\u003e \u003cspan class=\"wl-badge wl-badge-green\"\u003eMain Bearing Set · Standard Size · Extra Oil Clearance\u003c\/span\u003e \u003cspan class=\"wl-badge wl-badge-blue\"\u003eVQ35DE · 350Z DE 2003 to 2006\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wl-lede\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/automotivesuperstore.com.au\/media\/amasty\/shopby\/option_images\/acl_logo.jpg\" alt=\"ACL\" width=\"149\" height=\"162\"\u003e\u003cbr\u003eACL Race Series Main Bearing Set Standard Size Extra Oil Clearance – Nissan 350Z DE\u003c\/strong\u003e\u003cbr\u003e4M2633HX-STD · VQ35DE · 2003 to 2006\u003cbr\u003e\u003cbr\u003eThe ACL Race Series 4M2633HX-STD is the performance builder's choice for main bearings on the Nissan VQ35DE. Identical in construction to the 4M2633H-STD but with an additional 0.001\" (0.025mm) of oil clearance on a standard size crankshaft, \u003cstrong\u003ethe HX is the preferred choice for high RPM, boosted, and track applications\u003c\/strong\u003e where increased oil flow between bearing and journal is critical for protection under sustained hard use.\u003c\/p\u003e\n\u003cdiv class=\"wl-pull\"\u003eThe \"X\" suffix is the only difference from the standard H-STD set same standard crank size, same F780 Trimetal construction, same ACL Race Series manufacturing quality. The extra oil clearance allows more oil to flow through the bearing, improving cooling and lubrication under the elevated loads and temperatures of a performance application.\u003c\/div\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eProduct specifications\u003c\/h2\u003e\n\u003ctable class=\"wl-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e4M2633HX-STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eACL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eRace Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eMain bearing set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eStandard (STD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil clearance\u003c\/td\u003e\n\u003ctd\u003e+0.001\" (0.025mm) extra over H-STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eF780 Trimetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003eSet (4 bearings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eWhy ACL Race Series HX\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtra 0.001\" oil clearance increases oil flow for improved cooling and lubrication under high load conditions\u003c\/li\u003e\n\u003cli\u003eThe preferred choice for high RPM, boosted, and track applications on the VQ35DE\u003c\/li\u003e\n\u003cli\u003eF780 Trimetal construction for high strength, excellent seizure resistance, and superior fatigue life\u003c\/li\u003e\n\u003cli\u003eMicron tolerance machining for consistent wall thickness, crush, and clearance across every bearing in the set\u003c\/li\u003e\n\u003cli\u003eNo flash plating for improved bearing retention and maximum heat transfer\u003c\/li\u003e\n\u003cli\u003eTrusted by engine builders worldwide for circuit, endurance, and performance street applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eH-STD vs HX-STD - which do I need?\u003c\/h2\u003e\n\u003ctable class=\"wl-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eRecommended\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard or mild street rebuild, stock crank\u003c\/td\u003e\n\u003ctd\u003e4M2633H-STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh RPM, boosted, or track application\u003c\/td\u003e\n\u003ctd\u003e4M2633HX-STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrank at tight end of tolerance range\u003c\/td\u003e\n\u003ctd\u003e4M2633HX-STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine builder prefers tighter clearance\u003c\/td\u003e\n\u003ctd\u003e4M2633H-STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cdiv class=\"wl-install\"\u003e\n\u003cdiv class=\"wl-install-box\"\u003e\n\u003cp class=\"wl-install-label\"\u003eDifficulty\u003c\/p\u003e\n\u003cp class=\"wl-install-val\"\u003eEngine builder\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wl-install-box\"\u003e\n\u003cp class=\"wl-install-label\"\u003eTools required\u003c\/p\u003e\n\u003cp class=\"wl-install-val\"\u003eEngine assembly tools\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wl-notice-red\"\u003e\n\u003cstrong\u003eMeasure before you build.\u003c\/strong\u003e Always verify crankshaft journal size and oil clearance with Plastigage or a micrometer before final assembly. The HX-STD adds 0.001\" extra clearance over the H-STD on a standard shaft — confirm this suits your build specification before ordering. Do not mix bearing halves from different sets.\u003c\/div\u003e\n\u003chr class=\"wl-divider\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cdiv class=\"wl-fitment\"\u003e\n\u003cp\u003eNissan 350Z Z33 DE · 2003 to 2006 (VQ35DE)\u003c\/p\u003e\n\u003cp\u003eNissan Skyline V35 · VQ35DE variants\u003c\/p\u003e\n\u003cp\u003eNissan Stagea M35 · VQ35DE variants\u003c\/p\u003e\n\u003cp\u003eInfiniti G35 · VQ35DE variants\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.88em; color: #6b7280; margin-top: 6px;\"\u003eFits the VQ35DE engine only. Does not fit the 2007 to 2008 350Z HR with the VQ35HR engine. Please confirm crankshaft size and condition before ordering. Contact us if you're unsure and we're happy to help.\u003c\/p\u003e\n\u003cdiv class=\"wl-closing\"\u003e\n\u003cp\u003e\u003cstrong\u003eFor a standard street rebuild on a standard size crank, see the ACL 4M2633H-STD instead.\u003c\/strong\u003e Pair with the ACL Race Series rod bearing set for a complete crank bearing refresh on the VQ35DE.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Zend It Auto Parts","offers":[{"title":"Default Title","offer_id":49065986097380,"sku":"4M2633HX-STD","price":188.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/2679\/0884\/files\/4M2633HX-STD.jpg?v=1780371949","url":"https:\/\/zenditautoparts.com\/products\/acl-race-series-main-bearing-set-standard-size-4m2633hx-std-350z-de-03-06","provider":"Zend It Auto Parts","version":"1.0","type":"link"}