{"product_id":"306305-std-os","title":"Atomic Barra Cosworth F1 Series Forged Pistons","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n        \/* ATOMIC PERFORMANCE THEME STYLES - LIGHT MODE *\/\n        .atomic-container {\n            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;\n            max-width: 1000px;\n            margin: 0 auto;\n            background-color: #ffffff;\n            color: #333333;\n            line-height: 1.6;\n            border: 1px solid #e0e0e0;\n            box-sizing: border-box;\n        }\n\n        \/* BRAND COLORS *\/\n        :root {\n            --atomic-orange: #E4522B;\n            --atomic-purple: #663399;\n            --light-grey: #f4f4f4;\n            --border-color: #ddd;\n        }\n\n        \/* TYPOGRAPHY *\/\n        .atomic-header {\n            text-align: center;\n            padding: 40px 20px;\n            border-bottom: 4px solid var(--atomic-orange);\n            background-color: #fafafa;\n            width: 100%;\n        }\n\n        .atomic-title {\n            color: var(--atomic-orange);\n            font-size: 2.5rem;\n            text-transform: uppercase;\n            margin: 0;\n            font-weight: 900;\n            letter-spacing: 1px;\n            line-height: 1.1;\n        }\n\n        .atomic-subtitle {\n            color: #555;\n            font-size: 1.2rem;\n            margin-top: 10px;\n            font-weight: 400;\n            text-transform: uppercase;\n            letter-spacing: 2px;\n        }\n\n        h2 {\n            color: #222;\n            text-transform: uppercase;\n            font-size: 1.8rem;\n            margin-bottom: 15px;\n            border-left: 5px solid var(--atomic-orange);\n            padding-left: 15px;\n        }\n\n        h3 {\n            color: #333;\n            font-size: 1.4rem;\n            margin-top: 0;\n            font-weight: 700;\n        }\n\n        p {\n            margin-bottom: 15px;\n            color: #444;\n        }\n\n        strong {\n            color: #000;\n        }\n\n        \/* LAYOUT GRIDS *\/\n        .atomic-section {\n            padding: 40px;\n            border-bottom: 1px solid #eee;\n        }\n\n        .atomic-grid {\n            display: grid;\n            grid-template-columns: 1fr 1fr;\n            gap: 40px;\n            align-items: center;\n        }\n\n        \/* IMAGES *\/\n        .atomic-img {\n            width: 100%;\n            height: auto;\n            border-radius: 4px;\n            border: 1px solid #ddd;\n            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);\n            background-color: #eee; \/* Placeholder background *\/\n            min-height: 250px;\n            object-fit: cover;\n        }\n\n        .img-caption {\n            font-size: 0.85rem;\n            color: #666;\n            text-align: center;\n            margin-top: 8px;\n            font-style: italic;\n        }\n\n        \/* LISTS *\/\n        ul.atomic-list {\n            list-style: none;\n            padding: 0;\n        }\n\n        ul.atomic-list li {\n            padding-left: 25px;\n            position: relative;\n            margin-bottom: 10px;\n            color: #444;\n        }\n\n        ul.atomic-list li::before {\n            content: \"►\";\n            color: var(--atomic-orange);\n            position: absolute;\n            left: 0;\n        }\n\n        \/* CTA BUTTON *\/\n        .atomic-cta {\n            display: inline-block;\n            background-color: var(--atomic-orange);\n            color: #fff;\n            padding: 15px 30px;\n            font-size: 1.2rem;\n            font-weight: bold;\n            text-transform: uppercase;\n            text-decoration: none;\n            border-radius: 4px;\n            margin-top: 20px;\n            text-align: center;\n            box-sizing: border-box;\n            transition: background 0.3s;\n            cursor: pointer;\n            border: none;\n        }\n\n        .atomic-cta:hover {\n            background-color: #c03d1b;\n        }\n\n        \/* RESPONSIVE *\/\n        @media (max-width: 768px) {\n            .atomic-grid {\n                grid-template-columns: 1fr;\n            }\n\n            .atomic-title {\n                font-size: 1.8rem;\n            }\n\n            .atomic-section {\n                padding: 20px;\n            }\n        }\n    \u003c\/style\u003e\n\u003cdiv class=\"atomic-container\"\u003e\n\u003c!-- HEADER --\u003e\n\u003cdiv class=\"atomic-header\"\u003e\n\u003ch1 class=\"atomic-title\"\u003eAtomic Cosworth F1 Series Pistons\u003c\/h1\u003e\n\u003cdiv class=\"atomic-subtitle\"\u003eF1 Engineering for Your Barra | 2000HP Capable\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- WHY YOU SHOULD UPGRADE SECTION --\u003e\n\u003cdiv class=\"atomic-section\"\u003e\n\u003cdiv class=\"atomic-grid\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003eF1 Technology for the Street\u003c\/h2\u003e\n\u003cp\u003eWhen you're chasing 2000hp, your pistons are absorbing 8 to 9 tonnes of combustion force, 60 times a second. Standard forged pistons are heavy and noisy. We partnered with the legendary \u003cstrong\u003eCosworth UK\u003c\/strong\u003e to engineer a piston that defies the compromise between race strength and street manners.\u003c\/p\u003e\n\u003c!-- DID YOU KNOW SECTION --\u003e\n\u003cdiv style=\"background-color: #f8f4fc; border-left: 5px solid var(--atomic-purple); padding: 20px; margin: 25px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: var(--atomic-purple); font-size: 1.1rem; display: block; margin-bottom: 8px;\"\u003e💡 DID YOU KNOW?\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 0.95rem;\"\u003e\u003cstrong\u003eForged doesn't have to mean noisy.\u003c\/strong\u003e Most high-strength 2618 alloy pistons rattle loudly when cold due to loose clearances required for thermal expansion. The Atomic Cosworth piston features a unique \u003cstrong\u003ecrown and skirt geometry\u003c\/strong\u003e derived from Barra specific R\u0026amp;D. Cosworth's proprietary Alloy blend goes beyond the tradition 2618 alloy for improved strength to weight ratios. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: var(--atomic-purple); border-left-color: var(--atomic-purple);\"\u003eThe Atomic Solution\u003c\/h2\u003e\n\u003cp\u003eForged from a Cosworth proprietary alloy, these pistons are ultra-lightweight to reduce reciprocating mass (allowing higher RPM) yet incredibly strong thanks to an internal \"X-Brace\" strut design supporting the pin bosses. With Xylan-coated skirts for friction reduction and a fully polished crown to reflect heat, these are the most advanced pistons available for the Ford Barra. The mass of these pistons if focused heavily on the underside of the crown to create a hugely stable structure for the crown to withstand such high pressure. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/5548\/1713\/files\/IMG_6405.jpg?v=1759830211\" alt=\"\"\u003e\u003cbr\u003e\n\u003cdiv class=\"img-caption\"\u003ePolished Crown \u0026amp; Xylan Skirts: The Ultimate Combo.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FEATURE: STRENGTH \u0026 FINISH --\u003e\n\u003cdiv style=\"background-color: #fafafa;\" class=\"atomic-section\"\u003e\n\u003cdiv class=\"atomic-grid\"\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/5548\/1713\/files\/Atomic_Cosworth_F1_Series_Forged_Pistons_Ford_Barra_DOHC.jpg?v=1758865473\" alt=\"Atomic Cosworth F1 Series Forged Pistons – Ford Barra DOHC\"\u003e\u003cbr\u003e\n\u003cdiv class=\"img-caption\"\u003eSix internal struts for immense structural rigidity.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003e2. Engineered to Survive\u003c\/h2\u003e\n\u003cp\u003eProven in builds beyond 1500hp, these pistons are built to take punishment.\u003c\/p\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e6 Internal Struts:\u003c\/strong\u003e A complex bracing network connects the crown directly to the pin boss, preventing crown collapse under massive boost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXylan Skirt Coating:\u003c\/strong\u003e A specialized low-friction coating reduces wear on the cylinder walls and eliminates skirt collapse during high-load side loading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolished Crown:\u003c\/strong\u003e By polishing the piston top to a mirror finish, we reflect combustion heat back into the chamber, protecting the piston alloy from softening and reducing the chance of detonation hotspots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- TECH SPECS --\u003e\n\u003cdiv style=\"text-align: center; background-color: #fff;\" class=\"atomic-section\"\u003e\n\u003ch3 style=\"color: var(--atomic-orange); margin-top: 0;\"\u003eTech Specs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cosworth Proprietary Forged Alloy\u003cbr\u003e\u003cstrong\u003eBore Size:\u003c\/strong\u003e 92.30mm (Finished Size)\u003cbr\u003e\u003cstrong\u003eRating:\u003c\/strong\u003e 2000hp+ \/ 9 Tonnes Force\u003cbr\u003e\u003cstrong\u003eDesign:\u003c\/strong\u003e Cosworth F1 Series (UK Engineered)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- WHATS INCLUDED --\u003e\n\u003cdiv style=\"background-color: #fafafa;\" class=\"atomic-section\"\u003e\n\u003ch3 style=\"color: var(--atomic-orange); text-align: center;\"\u003e📦 What's Included\u003c\/h3\u003e\n\u003cdiv style=\"max-width: 600px; margin: 0 auto;\"\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003eSet of 6x Cosworth F1 Series Forged Pistons\u003c\/li\u003e\n\u003cli\u003eComplete Set of Hastings High-Strength Rings\u003c\/li\u003e\n\u003cli\u003e6x Heavy Duty Floating Wrist Pins\u003c\/li\u003e\n\u003cli\u003e12x Spiral Locks \/ Wire Locks\u003c\/li\u003e\n\u003cli\u003eXylan Skirt Coating (Pre-Applied)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- IMPORTANT NOTES \u0026 WARNINGS --\u003e\n\u003cdiv style=\"background-color: #fffdf0; border-left: 6px solid #d4a017;\" class=\"atomic-section\"\u003e\n\u003ch3 style=\"color: #b08d55; margin-top: 0; text-transform: uppercase;\"\u003e⚠️ Machining Notes\u003c\/h3\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e These pistons are designed for a piston to bore clearance of 0.0045\" with a \u003cstrong\u003e92.30mm finished bore size\u003c\/strong\u003e. Your block must be bored and honed to this specific dimension.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Gaps:\u003c\/strong\u003e Piston rings are supplied file-to-fit. You MUST file the ring gaps to the specification suitable for your boost level (see included instructions). Failure to gap rings will cause engine failure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; border-bottom: none;\" class=\"atomic-section\"\u003e\n\u003cdiv style=\"margin-top: 10px;\"\u003e\u003ca class=\"atomic-cta\" href=\"#\"\u003eAdd to Cart\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atomic Performance Products","offers":[{"title":"STD \/ 8.7:1 | Dishtop","offer_id":42367545999441,"sku":"306305","price":2839.0,"currency_code":"AUD","in_stock":true},{"title":"+0.5mm | 0.020\" \/ 8.7:1 | Dishtop","offer_id":42367546064977,"sku":"306306","price":2839.0,"currency_code":"AUD","in_stock":true},{"title":"+0.5mm | 0.020\" \/ 10.8:1 | Flat Top","offer_id":42367546097745,"sku":"306308-020-FT","price":2839.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2115\/6365\/files\/Atomic_Cosworth_F1_Series_Forged_Pistons_Ford_Barra_DOHC_7ffdd447-c120-4579-90bc-6ab07c5287a2.jpg?v=1779068482","url":"https:\/\/longboostperformance.com\/products\/306305-std-os","provider":"LongBoost Performance Parts","version":"1.0","type":"link"}