{"title":"L76-L77","description":"","products":[{"product_id":"gmm-cnc-ported-l76-l77-l98-ls3-heads-pair-change-over","title":"GMM CNC Ported L76 L77 L98 LS3 Heads - Pair - \"Change Over\"","description":"\u003cp\u003e1 Pair of Complete GMM CNC Ported L76 L77 L98 LS3 Heads - Change Over\u003c\/p\u003e\u003cp\u003eWhat you get\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCNC ported intake and exhaust port\u003c\/li\u003e\n\u003cli\u003eultra sonic process\u003c\/li\u003e\n\u003cli\u003e16 valves ground\u003c\/li\u003e\n\u003cli\u003e8 intake valve seats turned on Newen cnc cutter Multiple angle variable shape\u003c\/li\u003e\n\u003cli\u003e8 Exhaust valve seats turned on Newen cnc cutter Multiple angle variable shape\u003c\/li\u003e\n\u003cli\u003eincreased compression ratio with deck face machined. \u003c\/li\u003e\n\u003c\/ul\u003e\u003cstrong\u003e6.0Lt Engine (Squareport)\u003c\/strong\u003e\u003cp\u003e\u003cspan\u003e-Turbo Killer Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.003\u003c\/strong\u003e\u003cspan\u003e Milled Head\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e-Street Racer Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.010\u003c\/strong\u003e\u003cspan\u003e Milled Head 0.020 If Urgent Super Stock, Stealth, Torque -Master Camshafts - Use \u003c\/span\u003e\u003cstrong\u003e0.020\u003c\/strong\u003e\u003cspan\u003e Milled Head\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e-Super Stock Camshaft\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e0.030\u003c\/strong\u003e\u003cspan\u003e If Requested\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e6.2Lt Engine (Squareport)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSuper Stock, Stealth Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.020\u003c\/strong\u003e\u003cspan\u003e Milled Head \u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTorque Master Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.010\u003c\/strong\u003e\u003cspan\u003e or \u003c\/span\u003e\u003cstrong\u003e0.020\u003c\/strong\u003e\u003cspan\u003e Milled Head\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eStreet Racer Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.010\u003c\/strong\u003e\u003cspan\u003e Milled Head\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSuper Stock Camshaft Could Go \u003c\/span\u003e\u003cstrong\u003e0.030\u003c\/strong\u003e\u003cspan\u003e If Requested\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.gmmotorsport.info\/cncheads\"\u003eClick here for more information on our CNC heads\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eHow To Order Our CNC Heads \u003c\/p\u003e\u003cp\u003e\u003ciframe allowfullscreen=\"allowfullscreen\" height=\"314\" src=\"\/\/www.youtube.com\/embed\/4bR_yOn0P6A\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eIf you are looking for that extra edge or, more precisely, added power, then CNC technology will give you the results you need.\u003c\/p\u003e\u003cp\u003eIn fact, the cylinder head is one of the most, if not the most, important facets of engine horsepower.\u003c\/p\u003e\u003cp\u003eGMM Racing Heads have been supplying cylinder heads to major race teams \u003c\/p\u003e\u003cp\u003eThey have led the industry by providing superior performance cylinder heads to a broad cross-section of the racing world.\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cspan\u003e\u003cstrong\u003eUpgrade Options\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cstrong\u003eDecking:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePlease choose how much you want decked off the head = $0.00 no extra charge - (if you are not sure please\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:trade@gmmotorsport.com.au\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efirst)\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cstrong\u003ePSi Valve Springs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePlease advise if you would like valve springs added to your order\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cstrong\u003eValve Stem Seals:\u003c\/strong\u003e\u003cspan\u003e Please advise if you would like valve stem seals added to your order\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cspan\u003e\u003cstrong\u003eClass Race Option: \u003c\/strong\u003e\u003c\/span\u003eThese are purpose selected castings from our extensive inventory of heads within our workshop.\u003c\/p\u003e\u003cp\u003eDue to the casting process during manufacture,  some heads have more material thickness in the optimal places which allow a better porting procedure.\u003c\/p\u003e\u003cp\u003eRace Class heads also are subject to extra hand blending of ports and valve seats.\u003c\/p\u003e\u003cp\u003eSelect this if you are after the ultimate head if winning races is in your DNA\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChange Over:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePlease choose from our options below:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChange Over: \u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003eYou can bring your heads in to store and direct swap for a finished set, or send us your heads first and we will send you a finished set back. Heads must have valves, retainers and locks. \u003cspan\u003eHeads must be undamaged, unmodified \u0026amp; in a satisfactory clean condition. Charges will apply for heads presented in a highly dirty state or minor repairs. Example (broken header bolts).\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurchase Outright:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYou can purchase a set of heads outright and keep your own + $1590.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Holding Deposit:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYou can pay a core holding deposit of $1590- and have this refunded to you when you send your heads back to us - (\u003cspan\u003eYou must send us your heads no longer than 2 weeks after receiving the ones we send you.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cspan\u003ePlease Deliver to 23 Reserve Road Melton 3337 with your name and number in the box!\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/ls3-flow-figures.jpg?v=1767911250\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e\"Please note: Expected shipping of CNC Ported heads will be between 2-3 weeks from time of payment received or when change over heads are received\"\u003c\/span\u003e\u003c\/p\u003e","brand":"GM Motorsport","offers":[{"title":"Default Title","offer_id":46571682988209,"sku":"HEADS CNC SQU CHANGE OVER","price":1690.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/GMM_HEADS_1_EDIT__04014.1746145655.1280.1280.png?v=1767911263"}],"url":"https:\/\/australiaspeed.com.au\/collections\/l76-l77-3.oembed","provider":"Australia Speed","version":"1.0","type":"link"}