{"product_id":"crow-cams-5900","title":"Crow Cams Holden 253-308 Flat Tappet Custom","description":"\u003cp\u003e\u003cstrong\u003eHolden 253-308 Flat Tappet Custom — 5900\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA camshaft ground to the specification agreed for your engine build.\u003c\/p\u003e\u003cp\u003eThis listing is for a custom profile. BBT will confirm the grind specification against the engine build and intended use before an order is finalised; there is no single fixed cam card for this SKU.\u003c\/p\u003e\u003ch3\u003eCamshaft specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplier part number\u003c\/th\u003e\n\u003ctd\u003e5900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine \/ head family\u003c\/th\u003e\n\u003ctd\u003eHolden 253–308 with early cylinder heads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSupplied contents\u003c\/h3\u003e\u003cp\u003eOne camshaft. Lifters, springs, retainers, locks, seals and drive hardware are separate unless expressly included in an agreed package.\u003c\/p\u003e\u003ch3\u003eProfile-specific fitting requirements\u003c\/h3\u003e\u003cp\u003eFor flat-tappet installation, Crow recommends two bottles of ZDDP additive: one for run-in and one for the first oil change. Follow Crow’s current run-in procedure and the product dosing instructions.\u003c\/p\u003e\u003ch3\u003eInstallation and BBT support\u003c\/h3\u003e\u003cp\u003eConfirm the actual engine capacity, cylinder-head design and induction system before ordering. The installer must check cam timing, piston-to-valve clearance, spring installed height, coil bind, retainer-to-seal clearance, pushrod length and rocker geometry. Hydraulic preload or mechanical lash must match the selected profile. BBT can help assemble the engine-specific package and arrange installation and calibration.\u003c\/p\u003e\u003ch3\u003eCustom-order confirmation\u003c\/h3\u003e\u003cp\u003eThis SKU represents a custom\/order-specific camshaft service rather than one universal fixed cam card. The required profile must be confirmed against the engine specification before production. BBT can work through the intended use and supporting valvetrain requirements before the order is committed.\u003c\/p\u003e","brand":"Crow Cams","offers":[{"title":"Default Title","offer_id":43772559392835,"sku":"'5900","price":652.09,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/800x800-thumbnail-1661318662.5602_17ac24b6-9c2a-446d-b7b5-22b83dee8953.jpg?v=1788857895","url":"https:\/\/builtbyboostandtune.com.au\/products\/crow-cams-5900","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}