{"product_id":"set-of-aa-head-50-by-40-valves-dual-high-rev-stage-2-p-p","title":"Set of AA Head 50 by 40 Valves, Dual High-Rev, Stage 2 P\u0026P","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new (Set of 2) Stage 2 Port and Polished High Performance Cylinder Heads for a Porsche 914 2.0L or Type 4 Bus\/ Porsche 1.8L.Made from an AA 2.0L 914 type4 casting with breather or AA 2.0L Bus Square or Round port using 8mm valvestems. Heads comes with stainless steel 50mm intake and a stainless steel 40mm exhaust valves, with harden keepers, chromoly retainers, and dual high rev springs. They areready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003ePorsche 914 2.0L \/ Type 4, BusPorsche1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eDual High Rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e50mm Intake by 40mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA2.0L or AA 914\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExhaust Port:\u003c\/strong\u003e Square or Round\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size, when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"2.0 Round Port","offer_id":46603449630910,"sku":"022 470 103B P2 X2","price":2467.9,"currency_code":"USD","in_stock":true},{"title":"2.0 Square Port","offer_id":46603449663678,"sku":"071 470 103B P2 X2","price":2467.9,"currency_code":"USD","in_stock":true},{"title":"Porsche 2.0L 914","offer_id":46603449696446,"sku":"039 470 103B P2 X2","price":2499.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/6323\/0398\/files\/022-455-XXX-P1_688f18e5-67ad-4ddc-8708-94ad73cddfed.jpg?v=1782950756","url":"https:\/\/gex-international.myshopify.com\/products\/set-of-aa-head-50-by-40-valves-dual-high-rev-stage-2-p-p","provider":"GEX_AA Performance","version":"1.0","type":"link"}