{"product_id":"yella-terra-holden-v8-253-308-dash-3-hi-port-assembled-alloy-heads-pair-abha-308-3","title":"Yella Terra Holden V8 253\/308 Dash-3 Hi-Port Assembled Alloy Cylinder Heads — Pair — ABHA 308-3","description":"\u003cp\u003eABHA 308-3 is the assembled version of Yella Terra’s Dash-3 Hi-Port alloy cylinder-head package for compatible early Holden 253\/308 carburetted V8 engines. It combines the raised-port alloy casting with a supplier-assembled valve and spring package.\u003c\/p\u003e\u003ch3\u003eAssembled Dash-3 specification\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePair of assembled alloy Hi-Port heads.\u003c\/li\u003e\n\u003cli\u003eApproximately 1.940-inch intake valves.\u003c\/li\u003e\n\u003cli\u003eApproximately 1.600-inch exhaust valves.\u003c\/li\u003e\n\u003cli\u003eHigh-lift double valve springs.\u003c\/li\u003e\n\u003cli\u003eChromoly retainers.\u003c\/li\u003e\n\u003cli\u003eYella Terra advertises approximately 490 hp potential in a correctly matched out-of-box combination.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Confirm intake-manifold alignment for the raised ports and verify spring pressure, cam lift, piston-to-valve clearance and rocker geometry for the final engine.\u003c\/p\u003e\u003ch2\u003eProduct System\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eEngine Parts\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSupplier Part Number\u003c\/h2\u003e\u003cp\u003eABHA 308-3\u003c\/p\u003e\u003ch2\u003eBuilt by Boost \u0026amp; Tune Support\u003c\/h2\u003e\u003cp\u003eBBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.\u003c\/p\u003e","brand":"Yella Terra","offers":[{"title":"Default Title","offer_id":43817430908995,"sku":"ABHA 308-3","price":5700.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/3_assem__24413.1423637123.jpg?v=1789174927","url":"https:\/\/builtbyboostandtune.com.au\/products\/yella-terra-holden-v8-253-308-dash-3-hi-port-assembled-alloy-heads-pair-abha-308-3","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}