{"product_id":"306520-24","title":"Atomic High Rev Hydraulic Lifters | ‘Anti Pump-Up’","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 \"Anti-Pump\" High Rev Lifters\u003c\/h1\u003e\n\u003cdiv class=\"atomic-subtitle\"\u003eHigh RPM Stability | Double Relief Rate Technology\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\u003eThe LIMIT OF Standard Lifters\u003c\/h2\u003e\n\u003cp\u003eStandard hydraulic lifters are designed for smooth, gentle operation. When you introduce aggressive camshafts, harsh rev limiters (we know you love it), or high RPM, the valvetrain movement becomes sudden and violent. A standard lifter cannot discharge oil fast enough to keep up with these shocks. Instead, it \"pumps up,\" holding the valve slightly open. This causes loss of compression, severe valve float, and potential piston-to-valve contact.\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\u003eCam geometry matters.\u003c\/strong\u003e While Atomic and Crow Cams are engineered with smooth ramp rates, many aggressive aftermarket profiles have harsh geometry that \"slaps\" the rocker arm sending shock to the lifter. Combined with the shock of a hard-cut rev limiter, this forces the lifter to act like a solid strut if it can't bleed oil instantly. Our lifters feature \u003cstrong\u003eDouble the Relief Rate\u003c\/strong\u003e to handle exactly this scenario.\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\u003eAtomic High Rev \"Anti-Pump\" Lifters are engineered with modified internal valving that provides a significantly faster bleed-down rate—approximately double that of a standard unit. This allows the lifter to discharge oil instantly under sudden valvetrain shock, maintaining the correct zero-lash tolerance without over-extending (pumping up). It is the ultimate hydraulic solution for engines spinning to 8500rpm+.\u003cbr\u003e\u003cbr\u003eWe hand check every lifter here at Atomic HQ Sydney, AUS before etching them \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/5548\/1713\/files\/Atomic_High_Rev_Hydraulic_Lifters_Ford_Barra_DOHC_Anti_Pump-Up_Atomic_High_Rev_Hydraulic_Lifters_Ford_Barra_DOHC_Anti_Pump-Up.jpg?v=1757581124\" alt=\"Atomic High Rev Hydraulic Lifters – Ford Barra DOHC | ‘Anti Pump-Up’\"\u003e\u003cbr\u003e\n\u003cdiv class=\"img-caption\"\u003eHigh-flow valving prevents pump-up at high RPM.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FEATURE: STABILITY \u0026 PERFORMANCE --\u003e\n\u003cdiv style=\"background-color: #fafafa;\" class=\"atomic-section\"\u003e\n\u003cdiv class=\"atomic-grid\"\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv class=\"img-caption\"\u003eStable valve control, even on the limiter.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003e2. Engineered for Abuse\u003c\/h2\u003e\n\u003cp\u003eWhether you are drag racing or drifting, your engine spends its life at the limit. These lifters are built to survive it.\u003c\/p\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid Discharge:\u003c\/strong\u003e The internal metering valve is calibrated to bleed pressure quickly during \"lofting\" events, ensuring the valve returns to the seat fully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRev Limiter Safe:\u003c\/strong\u003e Specifically designed to handle the hydraulic shock caused by aggressive ignition-cut rev limiters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam Compatibility:\u003c\/strong\u003e While ideal for Atomic cams, they are \u003cem\u003eessential\u003c\/em\u003e for aftermarket cams with aggressive\/harsh lobe profiles to prevent valvetrain separation.\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;\" class=\"atomic-section\"\u003e\n\u003ch3 style=\"color: var(--atomic-orange); margin-top: 0;\"\u003eTech Specs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Hydraulic Lash Adjuster (HLA)\u003cbr\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Ford Barra DOHC 4.0L (BA-FGX)\u003cbr\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e High-Flow \"Anti-Pump\" Valving\u003cbr\u003e\u003cstrong\u003eRating:\u003c\/strong\u003e 8500+ RPM \/ High Boost\u003c\/p\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⚠️ Critical Note on Lifter Preload\u003c\/h3\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003e\u003cstrong\u003eALL hydraulic lifters — regardless of brand — must be checked for correct preload during installation.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eHydraulic lifters rely on oil pressure to maintain zero lash and compensate for heat-related expansion. Excessive preload forces the internal plunger too deep, effectively turning the lifter into a solid unit and eliminating its self-adjusting function. This can result in catastrophic engine damage under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive preload can cause:\u003c\/strong\u003e\n\u003cul style=\"list-style: circle; padding-left: 20px; margin-top: 5px; color: #444;\"\u003e\n\u003cli\u003eValve train noise (especially cold)\u003c\/li\u003e\n\u003cli\u003eReduced lifter life and premature failure\u003c\/li\u003e\n\u003cli\u003eValve float or loss of power at high RPM\u003c\/li\u003e\n\u003cli\u003ePotential valve burning due to incomplete valve closure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e➡️ Maximum recommended preload: 0.75mm (0.030\")\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e➡️ See included instructions for correct preload checking method\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Hygiene:\u003c\/strong\u003e Hydraulic lifters rely on clean oil. Debris from engine failure or poor maintenance will jam the precision check valves. Always install in a clean environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreak-In:\u003c\/strong\u003e Follow standard camshaft break-in procedures if installing with new cams.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- CTA FOOTER --\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":"Default Title","offer_id":42816329515079,"sku":"306520-AP-24","price":569.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0585\/8751\/2903\/files\/Atomic_High_Rev_Hydraulic_Lifters_Ford_Barra_DOHC_Anti_Pump-Up_Atomic_High_Rev_Hydraulic_Lifters_Ford_Barra_DOHC_Anti_Pump-Up_ea1d449c-496d-418b-a5f0-128c1ae67b90.jpg?v=1779748594","url":"https:\/\/www.ffpgarage.com.au\/products\/306520-24","provider":"FFP","version":"1.0","type":"link"}