{"product_id":"yella-terra-holden-v8-253-308-dash-3-hi-port-bare-alloy-heads-pair-abh-308-3","title":"Yella Terra Holden V8 253\/308 Dash-3 Hi-Port Bare Alloy Cylinder Heads — Pair — ABH 308-3","description":"\u003cp\u003eABH 308-3 is Yella Terra’s bare Dash-3 Hi-Port alloy cylinder-head pair for early carburetted Holden 253\/308-style V8 builds. The raised intake-port architecture is intended to improve available port area and airflow compared with the original iron-head arrangement.\u003c\/p\u003e\u003ch3\u003eDash-3 bare pair\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePair of semi-finished alloy cylinder heads.\u003c\/li\u003e\n\u003cli\u003eRaised intake-port position; Yella Terra states up to approximately 40% greater port area than standard.\u003c\/li\u003e\n\u003cli\u003eDesigned around early pre-injection Holden V8 architecture.\u003c\/li\u003e\n\u003cli\u003eProvision for 7\/16 UNC screw-in studs or compatible shaft-rocker systems.\u003c\/li\u003e\n\u003cli\u003eIntake manifold position must match the raised-port head arrangement; manifold-spacer\/repositioning requirements must be checked for the exact intake.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eBare \/ semi-finished component:\u003c\/strong\u003e Final seats, guides, chamber volume, surfacing and valvetrain geometry require engine-builder completion and verification.\u003c\/p\u003e\u003ch2\u003eSupplier\u003c\/h2\u003e\u003cp\u003eYella Terra\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\u003eABH 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":43817429663811,"sku":"ABH 308-3","price":3900.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/3_bare__76284.1424239612.jpg?v=1789174920","url":"https:\/\/builtbyboostandtune.com.au\/products\/yella-terra-holden-v8-253-308-dash-3-hi-port-bare-alloy-heads-pair-abh-308-3","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}