{"product_id":"306251","title":"Atomic Barra Billet Girdle","description":"\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003cdiv class=\"atomic-container\"\u003e\n\u003c!-- HEADER (Full Width) --\u003e\n\u003cdiv class=\"atomic-header\"\u003e\n\u003ch1 class=\"atomic-title\"\u003eAtomic Billet Main Cap Girdle\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1 class=\"atomic-title\"\u003e\u003c\/h1\u003e\n\u003ch1 class=\"atomic-title\"\u003e**PLEASE NOTE: We are updating the girdles to be Silver Zinc coated instead of yellow\/gold as it is more consistent, durable and we think it looks damn good!\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1 class=\"atomic-title\"\u003eWe will ship yellow zinc\/gold girdles until we have run out.\u003c\/h1\u003e\n\u003ch1 class=\"atomic-title\"\u003e\u003c\/h1\u003e\n\u003ch1 class=\"atomic-title\"\u003eIf you would like a silver girdle please let us know with your order**\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"atomic-subtitle\"\u003eHigh-Tensile Steel Reinforcement for 1000HP+\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\u003eWhy You Need a Main Girdle\u003c\/h2\u003e\n\u003cp\u003eAs Barra builds push beyond 400kW at the tyres, the stock bottom-end starts to show its limits. Under high RPM and load, the main caps begin to \"walk\" or chatter on the block surface. This movement throws off crankshaft alignment, accelerates bearing wear, and can lead to catastrophic main bearing failure. Whilst you might see big power Barras with SBEs stock bottom ends putting out big numbers with minimal mods, it isn't a recipe for a long lasting, trouble free car. \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\u003eNot all girdles are created equal.\u003c\/strong\u003e Many cheap copies lack proper relief cuts, causing interference with conrod bolts that can destroy an engine on the first rotation. The Atomic Girdle is precision CNC machined to provide a \u003cstrong\u003eminimum 4mm clearance\u003c\/strong\u003e to rod bolts, ensuring safe operation even with long-stroke combinations.\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\u003eThe Atomic Billet Main Cap Girdle acts as a rigid exoskeleton for your bottom end. By tying all 7 main caps together, it dampens harmonic vibrations and prevents individual cap movement. Laser-cut from high-tensile steel and surface-ground for flatness, it is the most effective way to stabilize your rotating assembly without moving to a full billet block.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg height=\"364\" width=\"291\" alt=\"Atomic barra billet steel main cap girdle\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/5548\/1713\/files\/Atomic_Mains_Steel_Girdle_EF-AU_SOHC_10mm_Thick_1.jpg?v=1756093919\"\u003e\u003cbr\u003e\n\u003cdiv class=\"img-caption\"\u003ePrecision Laser Cut High-Tensile Steel.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FEATURE: 10mm vs 16mm --\u003e\n\u003cdiv class=\"atomic-section\" style=\"background-color: #fafafa;\"\u003e\n\u003ch2 style=\"text-align: center; border: none; color: #333;\"\u003eChoose Your Strength\u003c\/h2\u003e\n\u003cdiv class=\"atomic-card-grid\"\u003e\n\u003c!-- 10mm OPTION --\u003e\n\u003cdiv class=\"atomic-card\"\u003e\n\u003ch3\u003e10mm Street\/Strip\u003c\/h3\u003e\n\u003cp\u003eThe \"No-Mod\" Solution. Fits under the standard factory sump without welding or cutting. Sufficient for builds up to \u003cstrong\u003e1500hp\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr style=\"border: 0; border-top: 1px solid #ddd;\"\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Direct Drop-In\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSump Mods:\u003c\/strong\u003e None Required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRating:\u003c\/strong\u003e Up to 1500hp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- 16mm OPTION --\u003e\n\u003cdiv class=\"atomic-card\" style=\"border-top-color: var(--atomic-orange); background-color: #fff5f2;\"\u003e\n\u003ch3 style=\"color: var(--atomic-orange);\"\u003e16mm Race Spec\u003c\/h3\u003e\n\u003cp\u003eMaximum rigidity for extreme applications. The extra thickness creates an incredibly stiff bottom-end structure for engines pushing \u003cstrong\u003ebeyond 1500hp\u003c\/strong\u003e (Methanol\/Drag).\u003c\/p\u003e\n\u003chr style=\"border: 0; border-top: 1px solid #eecabb;\"\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Race Only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSump Mods:\u003c\/strong\u003e Requires modification\/spacing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRating:\u003c\/strong\u003e 1500hp+\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 class=\"atomic-section\" style=\"text-align: center;\"\u003e\n\u003ch3 style=\"color: var(--atomic-orange); margin-top: 0;\"\u003eTech Specs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Tensile Billet Steel\u003cbr\u003e\u003cstrong\u003eMachining:\u003c\/strong\u003e Laser Cut \u0026amp; CNC Finished in Sydney, AUS\u003cbr\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Ford Barra DOHC \u0026amp; SOHC (BA-FGX)\u003cbr\u003e\u003cstrong\u003eCap Fitment:\u003c\/strong\u003e Available for Standard or Atomic Billet Caps\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- IMPORTANT NOTES \u0026 WARNINGS --\u003e\n\u003cdiv class=\"atomic-section\" style=\"background-color: #fffdf0; border-left: 6px solid #d4a017;\"\u003e\n\u003ch3 style=\"color: #b08d55; margin-top: 0; text-transform: uppercase; font-size: 1.1rem;\"\u003e⚠️ Critical Install Notes\u003c\/h3\u003e\n\u003cul class=\"atomic-list\" style=\"font-size: 0.9rem;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCap Type Selection:\u003c\/strong\u003e You must select the correct girdle for your main caps. Factory cast caps and Atomic Billet Caps have different profiles; the girdles are machined specifically to match.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16mm Clearance:\u003c\/strong\u003e The 16mm girdle WILL require modifications to the sump pan or spacers to clear the added height. Ideally suited for fabricated sumps or dry sump setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Studs:\u003c\/strong\u003e Requires appropriate length main studs (sold separately) to accommodate the girdle thickness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- CTA FOOTER --\u003e\n\u003cdiv class=\"atomic-section\" style=\"text-align: center; border-bottom: none;\"\u003e\n\u003cdiv style=\"margin-top: 10px;\"\u003e\u003ca href=\"#\" class=\"atomic-cta\"\u003eAdd to Cart\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atomic Performance Products","offers":[{"title":"10mm | BA BF FG | STD Caps \/ Girdle only","offer_id":42367562711121,"sku":"306251","price":415.0,"currency_code":"AUD","in_stock":true},{"title":"10mm | BA BF FG | STD Caps \/ Add Windage Tray","offer_id":59052862210129,"sku":"306251-WT","price":575.0,"currency_code":"AUD","in_stock":true},{"title":"16mm | BA BF FG | STD Caps \/ Girdle only","offer_id":42367562743889,"sku":"306250","price":475.0,"currency_code":"AUD","in_stock":true},{"title":"16mm | BA BF FG | STD Caps \/ Add Windage Tray","offer_id":59052862242897,"sku":"306250-WT","price":649.0,"currency_code":"AUD","in_stock":true},{"title":"10mm | BA BF FG | Billet Caps \/ Girdle only","offer_id":42367562776657,"sku":"306256","price":415.0,"currency_code":"AUD","in_stock":true},{"title":"10mm | BA BF FG | Billet Caps \/ Add Windage Tray","offer_id":59052862275665,"sku":"306256-WT","price":575.0,"currency_code":"AUD","in_stock":true},{"title":"16mm | BA BF FG | Billet Caps \/ Girdle only","offer_id":42367562809425,"sku":"306257","price":475.0,"currency_code":"AUD","in_stock":true},{"title":"16mm | BA BF FG | Billet Caps \/ Add Windage Tray","offer_id":59052862308433,"sku":"306257-WT","price":649.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2115\/6365\/files\/Atomic_new_barra_billet_girdle.jpg?v=1779068486","url":"https:\/\/longboostperformance.com\/products\/306251","provider":"LongBoost Performance Parts","version":"1.0","type":"link"}