{"product_id":"frankenstein-m311-273cc-boost-monster-ls3-cylinder-heads-set","title":"Frankenstein - M311 273cc Boost Monster LS3 Cylinder Heads (SET)","description":"\u003ch2\u003eM311 273cc Boost Monster LS3 Cylinder Heads\u003c\/h2\u003e\n\u003ch3\u003eConfigured for Superchargers, Turbos, and Boosted Applications\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFully 5-Axis CNC ported, 68cc chamber volume\u003c\/li\u003e\n\u003cli\u003e273cc intake port, 112cc exhaust port and 11° valve angle\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh Quality Components:\u003cbr\u003eBlack Nitride Stainless Steel Severe Duty Intake Valves\u003cbr\u003eInconel Exhaust Valves\u003cbr\u003eCustom PAC .700” Lift Valve Springs\u003cbr\u003eTitanium Retainers\u003c\/li\u003e\n\u003cli\u003eO-Ringed Exhaust Ports (Hi-Temp Silicone O-rings Included)\u003c\/li\u003e\n\u003cli\u003e2″ Headers Recommended\u003c\/li\u003e\n\u003cli\u003eCompatible with 4-bolt and 6-bolt engine blocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eHelpful Links\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(48, 48, 48);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(48, 48, 48);\"\u003eOptional \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"https:\/\/www.ictbillet.com\/products\/ls9-cylinder-head-gasket-mls-051-thick-4-10-bore-for-ls-turbo-engines-1-gasket?variant=46047958761702\" rel=\"noopener\" style=\"color: rgb(255, 42, 0);\" target=\"_blank\"\u003eh\u003c\/a\u003e\u003ca href=\"https:\/\/www.ictbillet.com\/products\/ls9-cylinder-head-gasket-mls-051-thick-4-10-bore-for-ls-turbo-engines-1-gasket?variant=46047958761702\" rel=\"noopener\" style=\"color: rgb(255, 42, 0);\" target=\"_blank\"\u003eead gaskets\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(48, 48, 48);\"\u003eOptional \u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"https:\/\/www.ictbillet.com\/products\/ls-billet-aluminum-valve-cover-set-12orb-pcv-ls1-ls2-lsx-ls7-ls3?_pos=1\u0026amp;_psq=551713\u0026amp;_psid=cdcb9f492\u0026amp;_ss=e\" rel=\"noopener\" style=\"color: rgb(255, 42, 0);\" target=\"_blank\"\u003evalve covers\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(48, 48, 48);\"\u003eOptional alternator wire harness extension:\u003c\/span\u003e \u003ca rel=\"noopener\" href=\"https:\/\/www.ictbillet.com\/products\/alternator-wire-harness-extension-36-early-ls-4-pin-connector-relocation?srsltid=AfmBOoow2uQ6Zx7zli0_fg-QnvCIGpbOsC_IzMMxUlsPOPwRbp5xopgP\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e4 pin\u003c\/span\u003e\u003c\/a\u003e \u003cspan style=\"color: rgb(48, 48, 48);\"\u003econnector or\u003c\/span\u003e \u003ca rel=\"noopener\" href=\"https:\/\/www.ictbillet.com\/products\/alternator-wire-harness-extension-36-ls-2-pin-hi-amp-connector-relocation\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e2 pin\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*Does not include rockers or rocker stands\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"frankenstein Engine Dynamics","offers":[{"title":"Default Title","offer_id":48246040035558,"sku":"FED-M311BM","price":4500.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0688\/8259\/6070\/files\/frankenstein-m311-273cc-ls3-cylinder-heads-set-ict-billet-4357098.jpg?v=1777049292","url":"https:\/\/www.ictbillet.com\/products\/frankenstein-m311-273cc-boost-monster-ls3-cylinder-heads-set","provider":"ICT Billet","version":"1.0","type":"link"}