{"title":"Holden \/ Chev","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"},{"product_id":"brand-new-gmm-cnc-ported-ls3-head-complete-outright","title":"New GMM CNC Ported LS3 Heads Set Complete \"Outright\"","description":"\u003cp\u003e2 Complete Ls3 GMM CNC  Head - (Limited Stocks)\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\u003e8 valve stem seals\u003c\/li\u003e\n\u003cli\u003e8 retainers\u003c\/li\u003e\n\u003cli\u003e16 valve locks\u003c\/li\u003e\n\u003cli\u003e8 light weight LS3 valves\u003c\/li\u003e\n\u003cli\u003e4 intake valve seats turned on Newen cnc cutter Multiple angle variable shape\u003c\/li\u003e\n\u003cli\u003e4 Exhaust valve seats turned on Newen cnc cutter Multiple angle variable shape\u003c\/li\u003e\n\u003cli\u003eOptional increased compression ratio with deck face machined. \u003c\/li\u003e\n\u003c\/ul\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\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\u003eValve 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\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\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/moved-5a484ce29dbc9e6b849efa77a89640ee.jpg?v=1767911253\"\u003e\u003c\/p\u003e\u003cdiv class=\"productView\"\u003e\n\u003carticle class=\"productView-description\"\u003e\u003cdiv class=\"tabs-contents\"\u003e\u003cdiv class=\"tab-content is-active\" id=\"tab-description\"\u003e\n\u003cp\u003e\u003cspan\u003e\"Please note: Expected shipping of CNC Ported heads will be between 1-3 weeks from time of payment received or when change over heads are received\"\u003c\/span\u003e\u003c\/p\u003e\n\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\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/article\u003e\u003cbr\u003e\n\u003c\/div\u003e\u003cdiv data-content-region=\"product_below_content\"\u003e \u003c\/div\u003e\u003csection class=\"toggle videoGallery\" data-video-gallery=\"\"\u003e\u003c\/section\u003e","brand":"GM Motorsport","offers":[{"title":"Default Title","offer_id":46571683053745,"sku":"HEAD CNC SQU OUTRIGHT","price":3399.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/GMM_HEADS_1_EDIT__73366.1675219704.1280.1280.png?v=1767911264"},{"product_id":"gmm-cnc-ported-ls1-241-heads-valves-pair-change-over-free-cam","title":"GMM CNC Ported LS1 (241) Heads \u0026 Valves - Pair - \"Change Over\"","description":"\u003cp\u003e1 Pair of Complete GMM CNC Ported LS1 (241) Heads and Valves - \"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\u003e5.7Lt Engine (Cathedral)\u003c\/strong\u003e\u003cp\u003e\u003cspan\u003e-Turbo Killer Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.010\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\u003e0.020\u003c\/strong\u003e\u003cspan\u003e Milled Head\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e-Super Stock, Stealth, Torque Master Camshafts - Use \u003c\/span\u003e\u003cstrong\u003e0.030\u003c\/strong\u003e\u003cspan\u003e Milled Head\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e-Super Stock Camshaft \u003c\/span\u003e\u003cstrong\u003e0.040\u003c\/strong\u003e\u003cspan\u003e If Requested\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\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 src=\"\/\/www.youtube.com\/embed\/4bR_yOn0P6A\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\u003cp\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/Qz1K8xyB8z0?t=167s\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\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.\u003cbr\u003e\u003cbr\u003e\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 = $0.00 no extra charge - ( if you are not sure please\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:trade@gmmotorsport.com.au\" target=\"_blank\" rel=\"noopener\"\u003econtact us\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efirst)\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cstrong\u003eAdd 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\u003e\u003cstrong\u003eChange Over:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePlease choose from our change over or outright option 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 + $1299.\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 $1299- 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\"Please note: Expected shipping of CNC Ported heads will be between 1-2 weeks from time of payment received or when change over heads are received\"\u003c\/p\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","brand":"GM Motorsport","offers":[{"title":"Default Title","offer_id":46571683119281,"sku":"GMM CNC LS1 241 CASTING","price":1690.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/CNCCylinderheads__52656.1746145691.1280.1280.jpg?v=1767911266"},{"product_id":"gmm-cnc-ported-ls1-241-casting-heads-pair-outright","title":"GMM CNC Ported LS1 (241 casting) Heads - Pair - \"Outright\"","description":"\u003cp\u003e1 Pair of Complete GMM CNC Ported LS1 (241 catsing) Heads - \"Outright\"\u003c\/p\u003e\u003cp\u003eWhat you get\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e \u003c\/li\u003e\n\u003cli\u003e550 GM Vave springs\u003c\/li\u003e\n\u003cli\u003eRefurbished 241 Cylinder Head castings\u003c\/li\u003e\n\u003cli\u003eCNC ported intake and exhaust ports\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\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 src=\"\/\/www.youtube.com\/embed\/Qz1K8xyB8z0?t=167s\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\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.\u003cbr\u003e\u003cbr\u003e\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 = $0.00 no extra charge - ( if you are not sure please\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:trade@gmmotorsport.com.au\" target=\"_blank\" rel=\"noopener\"\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\u003eCan be shipped within 48HRS of payment being received\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"box_spacer10\"\u003e\u003cspan\u003ePlease Deliver to 23 Reserve Road Melton 3337 with your name and number in the box!\u003c\/span\u003e\u003c\/p\u003e","brand":"GM Motorsport","offers":[{"title":"Default Title","offer_id":46571683184817,"sku":"GMM CNC LS1 241 CASTING OUTRIGHT","price":3499.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/CNCCylinderheads__36912.1593528849.1280.1280.jpg?v=1767911268"},{"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"},{"product_id":"gmm-cnc-ported-lsa-heads-pair-change-over","title":"GMM CNC Ported LSA Heads - Pair - \"Change Over\"","description":"\u003cp\u003e1 Pair of Complete GMM CNC Ported LSA Heads - Change Over \u003cspan\u003e(Limited Stocks)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eWhat you get:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e8 CNC ported intake ports\u003c\/li\u003e\n\u003cli\u003e8 CNC ported exhaust ports\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\u003eLSA Engine\u003c\/strong\u003e\u003cp\u003e\u003cspan\u003eSuper Charger Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.010\u003c\/strong\u003e\u003cspan\u003e Milled Head\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eLSA MAX Camshaft - Use \u003c\/span\u003e\u003cstrong\u003e0.010\u003c\/strong\u003e\u003cspan\u003e Milled Head\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 src=\"\/\/www.youtube.com\/embed\/Qz1K8xyB8z0?t=167s\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\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 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\" target=\"_blank\" rel=\"noopener\"\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\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\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Holing Deposit:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYou can pay a core deposit of $1,695.00 which will then be 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","brand":"GM Motorsport","offers":[{"title":"Default Title","offer_id":46571738103985,"sku":"HEADS CNC LSA CHANGE OVER-1","price":1790.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/5793\/6305\/files\/GMM_HEADS_1_EDIT__96690.1746145667.1280.1280.png?v=1767912853"}],"url":"https:\/\/australiaspeed.com.au\/collections\/holden-chev.oembed","provider":"Australia Speed","version":"1.0","type":"link"}