{"product_id":"gen-3-hemi-cylinder-heads-ported-by-thitek","title":"Gen 3 HEMI 392 Cylinder Heads Ported by Thitek","description":"\u003cp\u003eUpgrade your GEN 3 HEMI 392 to get all the flow you need! \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThese heads are ready to go, and come with our stage 2 porting done by Thitek. Casting number ending in \"369\".\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSTAGE 2 includes:\u003c\/p\u003e\n\u003cp\u003e- Disassembly and sonic cleaning\u003c\/p\u003e\n\u003cp\u003e- CNC porting done by Thitek (best in the HEMI cylinder head business)\u003c\/p\u003e\n\u003cp\u003e- Deck surface milled flat for the best sealing to the head gasket \u003c\/p\u003e\n\u003cp\u003e- New bronze valve guides (Steel guides may be used for high boost engines)\u003c\/p\u003e\n\u003cp\u003e- Fresh valve job \u003c\/p\u003e\n\u003cp\u003e- New valve seals\u003c\/p\u003e\n\u003cp\u003e- Reassembly of factory components \u003c\/p\u003e\n\u003cp\u003e- Brand new Manley stainless steel valves\u003c\/p\u003e\n\u003cp\u003e- 0.650\" lift beehive springs \u003c\/p\u003e\n\u003cp\u003e- Hardened steel retainers and seats \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIf you need your heads ported, please see our listings for forwarding services which include stage 1, stage 2, and stage 3. Available. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese are the perfect upgrade to your 392 Scat Pack, etc. Expected power gains range from 20-50 RWHP! Gains can vary, depending on other modifications done to the vehicle.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMessage us if you have any questions. \u003c\/p\u003e","brand":"Gearhead Designworks","offers":[{"title":"Stage 2","offer_id":67865129681211,"sku":"HEMI_PORT_STG2_NC","price":2595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/9070\/2651\/files\/rn-image_picker_lib_temp_25c68774-c887-4df7-be42-c0b93511f97d.jpg?v=1765317184","url":"https:\/\/gearheaddesignworks.com\/products\/gen-3-hemi-cylinder-heads-ported-by-thitek","provider":"Gearhead Designworks ","version":"1.0","type":"link"}