{"title":"LS2 Heads","description":"\u003cdiv class=\"firstpage-custom-collection\"\u003e\n\u003cdiv class=\"content-container\"\u003e\n\u003ch2\u003ePorted LS2 Heads\u003c\/h2\u003e\n\u003cp\u003eLooking to unlock more power, efficiency, and performance from your LS-powered vehicle? At Australia Speed, we specialise in CNC-ported \u003cstrong\u003eLS2 heads\u003c\/strong\u003e — precision-machined to dramatically improve airflow, throttle response, and horsepower. These aren’t just stock LS2 heads — they’re engineered for serious performance gains.\u003c\/p\u003e\n\u003cp\u003eWhether you're building a street machine, track car, or sleeper setup, our \u003cstrong\u003eported LS2 heads\u003c\/strong\u003e are designed to take your engine to the next level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cinput id=\"check_id\" type=\"checkbox\"\u003e\u003clabel for=\"check_id\"\u003e\u003c\/label\u003e\u003cdiv class=\"content\"\u003e\u003cdiv\u003e\n\u003ch2\u003eWhat Are LS2 Heads \u0026amp; Why Do I Need One?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLS2 heads\u003c\/strong\u003e are aluminium cylinder heads originally developed for GM’s 6.0L LS2 V8 engine. Known for their cathedral-style intake ports and strong midrange torque, they’re already a solid foundation — but stock heads only get you so far.\u003c\/p\u003e\n\u003cp\u003eOur CNC-ported LS2 heads go several steps further. By precisely reshaping the intake and exhaust ports with computer-controlled machining, we unlock far superior airflow characteristics than stock. That means more power, better combustion efficiency, and sharper throttle response — all without compromising reliability.\u003c\/p\u003e\n\u003ch2\u003eKey Benefits of CNC-Ported LS2 Heads\u003c\/h2\u003e\n\u003cp\u003eWhen upgrading your vehicle, every component counts. Here’s why so many car enthusiasts choose our \u003cstrong\u003eported LS2 heads\u003c\/strong\u003e:\u003c\/p\u003e\n\u003ch4\u003eBetter Airflow = More Power\u003c\/h4\u003e\n\u003cp\u003eCNC porting increases intake and exhaust flow, helping your engine to breathe better. This translates to increased horsepower, improved torque, and a more responsive throttle.\u003c\/p\u003e\n\u003ch4\u003eDirect Bolt-On Fitment\u003c\/h4\u003e\n\u003cp\u003eNo custom fabrication needed — our CNC-ported \u003cstrong\u003eLS2 heads\u003c\/strong\u003e retain original dimensions and mounting points, making installation straightforward for DIY builders or workshops alike.\u003c\/p\u003e\n\u003ch4\u003ePerformance That Matches Your Build\u003c\/h4\u003e\n\u003cp\u003eWhether paired with an aftermarket camshaft, upgraded intake, or high-performance exhaust, \u003cstrong\u003eported LS2 heads\u003c\/strong\u003e offer a balanced upgrade that enhances both low-end grunt and top-end pull.\u003c\/p\u003e\n\u003ch4\u003eGreat for NA or Boosted Applications\u003c\/h4\u003e\n\u003cp\u003eThese heads are versatile, ideal for naturally aspirated setups or boosted builds for that extra airflow to support more power.\u003c\/p\u003e\n\u003cp\u003eIf you’re seeking more from your vehicle, our CNC-ported \u003cstrong\u003eLS2 heads for sale\u003c\/strong\u003e are a reliable upgrade with measurable gains, delivering real performance without compromise.\u003c\/p\u003e\n\u003ch2\u003eWould I Benefit From LS2 Ported Heads?\u003c\/h2\u003e\n\u003cp\u003eIf you’re the kind of driver who cares about your vehicle's performance, not just its appearance, then ported LS2 heads should be at the top of your upgrade list.\u003c\/p\u003e\n\u003cp\u003eLS2 heads are ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWeekend racers or track-day enthusiasts\u003c\/li\u003e\n\u003cli\u003eMuscle car owners doing LS swaps or modernisation projects\u003c\/li\u003e\n\u003cli\u003ePerformance tuners looking to maximise air\/fuel flow\u003c\/li\u003e\n\u003cli\u003eBuilders chasing horsepower without sacrificing street driveability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you’re building a street beast, track weapon or sleeper setup, our CNC-ported LS2 heads are engineered to support your vision.\u003c\/p\u003e\n\u003ch2\u003eWhy Buy LS2 Heads From Australia Speed?\u003c\/h2\u003e\n\u003cp\u003eWhen you’re shopping for LS2 heads for sale, not all suppliers are equal. Here’s why so many customers across Australia trust us for their engine upgrades:\u003c\/p\u003e\n\u003ch3\u003eQuality You Can Count On\u003c\/h3\u003e\n\u003cp\u003eWe don’t cut corners. Every LS2 head in our inventory is precision-machined and thoroughly cleaned, inspected and tested to ensure reliable performance.\u003c\/p\u003e\n\u003ch3\u003eLocal Aussie Service\u003c\/h3\u003e\n\u003cp\u003eWe’re proudly based in Melton, so we understand the needs of Australian performance car builders. Our team is made up of genuine motor enthusiasts who’ve worked in the shop and on the strip.\u003c\/p\u003e\n\u003ch3\u003eFast, Reliable Shipping\u003c\/h3\u003e\n\u003cp\u003eYou’ll never experience long wait times. We dispatch orders promptly across Australia so you can get back in the garage sooner, not later.\u003c\/p\u003e\n\u003ch3\u003eFull-Service Performance Parts\u003c\/h3\u003e\n\u003cp\u003eLooking to complete your build? We also stock \u003ca href=\"https:\/\/australiaspeed.com.au\/cnc-shop-service\/cnc-heads\/chev\/ls1\/\"\u003eLS1 heads\u003c\/a\u003e, \u003ca href=\"https:\/\/australiaspeed.com.au\/cnc-shop-service\/cnc-heads\/chev\/ls3\/\"\u003eLS3 heads\u003c\/a\u003e, along with a full range of \u003ca href=\"https:\/\/australiaspeed.com.au\/\"\u003eperformance car parts\u003c\/a\u003e to round out your setup.\u003c\/p\u003e\n\u003ch2\u003eBoost Power With Ported LS2 Heads From Australia Speed Today!\u003c\/h2\u003e\n\u003cp\u003eReady for your next upgrade? Browse our range of CNC-ported LS2 heads for sale and find out why so many Australians trust us for precision, power and performance. Whether you’re chasing tenths at the track or just want more punch in your daily drives, ported LS2 heads are the best upgrade for your LS-based build.\u003c\/p\u003e\n\u003cp\u003eHave questions? Our team is always here to help. Call, email, or visit us in-store for personalised advice.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"gmm-cnc-ported-ls2-ls6-243-casting-heads-pair-change-over","title":"GMM CNC Ported LS2 LS6 (243 casting) Heads - Pair - \"Change Over\"","description":"\u003cp\u003e1 Pair of Complete GMM CNC Ported LS1 (243 catsing) 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\u003eLS2 6.0Lt Engine (Cathedral)\u003c\/strong\u003e\u003cp\u003e\u003cspan\u003eTurbo Killer Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.03\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\u003cstrong\u003e0.020\u003c\/strong\u003e\u003cspan\u003e If Urgent\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSuper Stock, Stealth, Torque Master Camshafts - Use \u003c\/span\u003e\u003cstrong\u003e0.020\u003c\/strong\u003e\u003cspan\u003e Milled\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHead\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSuper Stock Camshaft \u003c\/span\u003e\u003cstrong\u003e0.030\u003c\/strong\u003e\u003cspan\u003e If Requested\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\u003e\u003ciframe allowfullscreen=\"allowfullscreen\" height=\"314\" src=\"\/\/www.youtube.com\/embed\/4bR_yOn0P6A\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\u003cp\u003e\u003ciframe allowfullscreen=\"allowfullscreen\" height=\"314\" src=\"\/\/www.youtube.com\/embed\/Qz1K8xyB8z0?t=167s\" width=\"560\"\u003e\u003c\/iframe\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 of the head (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 \u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cstrong\u003eChange over option: \u003c\/strong\u003e\u003c\/p\u003e\u003cp\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 + $1390.\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 $1390- 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 \u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/243-flow-figures.jpg?v=1767911256\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cspan\u003e\u003ciframe allowfullscreen=\"allowfullscreen\" frameborder=\"0\" height=\"315\" src=\"\/\/www.youtube.com\/embed\/kWnfriVGABw?si=WWo9A5MTOrsUgNfW\" title=\"YouTube video player\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"GM Motorsport","offers":[{"title":"Default Title","offer_id":46571683250353,"sku":"GMM CNC LS6 243 CASTING","price":1790.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/CNCCylinderheads__25140.1746145679.1280.1280.jpg?v=1767911269"}],"url":"https:\/\/australiaspeed.com.au\/collections\/ls2-heads.oembed","provider":"Australia Speed","version":"1.0","type":"link"}