{"product_id":"s65-4-2l-engine-rebuild","title":"S65 4.2L Engine Rebuild","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThis engine includes replacement of the OEM rod bearings with high performance bearings, CarBahn Autoworks valve springs, 2mm over-sized 94mm CarBahn-CP forged pistons and head gaskets.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003eConnecting rod bearing and valve springs are common failure items on S65 and S85 engines. In response, CarBahn Autoworks has developed improved bearings and valve springs. This rebuild includes a valve job with new hydraulic lifters, plus timing chains, timing chain guides, timing chain tensioners and all associated seals and gaskets.\u003c\/p\u003e \u003ch5\u003eHistory\u003c\/h5\u003e \u003cp\u003eSteve Dinan has been building high performance and racing engines for BMW s since 1977, winning 11 racing championships including 3 prototype championships and two 24 Hours of Daytona. The same engine shop that builds the racing engines also builds the street car engines; these talented engineers, machinists, and builders have built hundreds of engines from OEM street rebuilds to full-blown racing engines.\u003c\/p\u003e \u003cp\u003eRefer to the graphs below for the power results without catalytic converters on 100 octane race gas and using J607 (the typical aftermarket correction).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eS65 4.2L Wet sump:\u003c\/strong\u003e\u003c\/p\u003e \u003ctable dir=\"ltr\" border=\"1\" width=\"250\" cellspacing=\"0\" cellpadding=\"0\"\u003e \u003ccolgroup\u003e \u003ccol width=\"57\"\u003e \u003ccol width=\"60\"\u003e \u003ccol width=\"60\"\u003e \u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eRPM\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eTRQ\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eHP\u003c\/strong\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e3500\u003c\/td\u003e \u003ctd\u003e329.4\u003c\/td\u003e \u003ctd\u003e219.5\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e4000\u003c\/td\u003e \u003ctd\u003e346.8\u003c\/td\u003e \u003ctd\u003e264.1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e4500\u003c\/td\u003e \u003ctd\u003e348.2\u003c\/td\u003e \u003ctd\u003e298.3\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e5000\u003c\/td\u003e \u003ctd\u003e339.4\u003c\/td\u003e \u003ctd\u003e323.1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e5500\u003c\/td\u003e \u003ctd\u003e340.6\u003c\/td\u003e \u003ctd\u003e356.7\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e5800\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e340.3\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e375.8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e6000\u003c\/td\u003e \u003ctd\u003e334.2\u003c\/td\u003e \u003ctd\u003e381.8\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e6500\u003c\/td\u003e \u003ctd\u003e331.6\u003c\/td\u003e \u003ctd\u003e410.4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e7000\u003c\/td\u003e \u003ctd\u003e329.8\u003c\/td\u003e \u003ctd\u003e439.6\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e7500\u003c\/td\u003e \u003ctd\u003e317.0\u003c\/td\u003e \u003ctd\u003e452.7\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e8000\u003c\/td\u003e \u003ctd\u003e309.3\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e471.1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003eNo cats, 100 octane unleaded, J607\u003c\/p\u003e \u003cp\u003e\u003cspan\u003e\u003cb\u003eEngine core acceptance parameters\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003eMust be complete core (factory engine, from oil pan to valve cover)\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBlock must have no: \u003cul\u003e \u003cli\u003eHoles or cracks in casting\u003c\/li\u003e \u003cli\u003eHoles or crack in covers\u003c\/li\u003e \u003cli\u003eBore damage that cannot be honed out\u003c\/li\u003e \u003cli\u003eThrust surface damage\u003c\/li\u003e \u003cli\u003eJournal surfaces damage\u003c\/li\u003e \u003cli\u003eBolt hole damage that can’t be repaired\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eHeads must have no: \u003cul\u003e \u003cli\u003eHoles or cracks in casting\u003c\/li\u003e \u003cli\u003eHoles or crack in covers\u003c\/li\u003e \u003cli\u003eThrust surface damage\u003c\/li\u003e \u003cli\u003eJournal surfaces damage\u003c\/li\u003e \u003cli\u003eBolt hole damage that can’t be repaired\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eAdditional repair charges could apply for damaged items that are not normally changed during an overhaul and cannot be repaired or serviced \u003cul\u003e \u003cli\u003eValves\u003c\/li\u003e \u003cli\u003eCrankshafts\u003c\/li\u003e \u003cli\u003eCamshafts\u003c\/li\u003e \u003cli\u003eGuides\u003c\/li\u003e \u003cli\u003eValveTronic mechanism\u003c\/li\u003e \u003cli\u003eVanos mechanism\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/WSHusoVQm8o?si=CMwbD2DN-2F4eqPW\" height=\"315\" width=\"560\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"CarBahn","offers":[{"title":"Default Title","offer_id":41597425549375,"sku":"CB265-6001","price":20995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0046\/5770\/9120\/files\/S-valve-springs-S65-3_3bb64ddf-818f-4e64-b66e-027f8c1c3d27.jpg?v=1743439033","url":"https:\/\/shop.precision-sport.com\/products\/s65-4-2l-engine-rebuild","provider":"Precision Sport Industries","version":"1.0","type":"link"}