{"product_id":"pacemaker-ph5340-big-block-chev-conversion-headers-holden-hq-hj-hx-hz-wb","title":"Pacemaker | 2\" Tri-Y Big Block Chev Conversion Headers | Holden HQ HJ HX HZ WB | PH5340 L\/R","description":"\u003ch2\u003ePacemaker 2\" Tri-Y Big Block Chev Conversion Headers - Holden HQ-WB - PH5340 L\/R\u003c\/h2\u003e\n\u003cp\u003eEngineered for the ultimate muscle car conversion, the Pacemaker PH5340 headers allow for the seamless installation of a Big Block Chevrolet V8 into the iconic Holden HQ, HJ, HX, HZ, and WB series. These high-performance Tri-Y headers are designed to handle the massive displacement and exhaust volume of 396 to 496 cubic inch engines. Featuring large 2\" (51mm) primary pipes and a substantial 3\" (76mm) outlet, they provide the necessary flow to maximize torque and horsepower from your big block. Proudly Australian-made, these headers offer the precision fitment and durable construction required for high-horsepower street and strip applications.\u003c\/p\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cp\u003eThis product offers the following high-performance features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBig Block Specific Design:\u003c\/strong\u003e Purpose-built for Chevrolet 396, 402, 409, 427, 454, and 496 Big Block V8 conversions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Flow Tri-Y Configuration:\u003c\/strong\u003e Designed to optimize low-to-mid range torque while maintaining high-end power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Features massive 2\" (51mm) primary pipes and 2¼\" (57mm) secondaries for maximum durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge 3\" Outlet:\u003c\/strong\u003e Ensures minimal backpressure for high-displacement engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessory Compatibility:\u003c\/strong\u003e Engineered to maintain clearance for Power Steering and Air Conditioning systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 100%; padding: 20px; border: 1px solid #ccc; border-radius: 5px; font-size: 14px; margin-bottom: 20px;\"\u003e\n\u003cstrong\u003eProduct Specifications for PH5340 L\/R\u003c\/strong\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-top: 10px;\"\u003e\n\u003ctable style=\"min-width: 800px; border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f0; border-bottom: 2px solid #333;\"\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eValue\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left; white-space: nowrap;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold; white-space: nowrap;\"\u003ePart #\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003ePH5340\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold; white-space: nowrap;\"\u003eGasket\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eDSF 23\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold; white-space: nowrap;\"\u003ePrimary Pipe\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e2\" (51mm)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold; white-space: nowrap;\"\u003eSecondary Pipe\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e2¼\" (57mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold; white-space: nowrap;\"\u003eP\/Steering\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #f9f9f9; font-weight: bold; white-space: nowrap;\"\u003eOutlet\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e3\" (76mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold; white-space: nowrap;\"\u003eAir Con\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; background-color: #ffffff; font-weight: bold; white-space: nowrap;\"\u003eFitting Time\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 5px; white-space: nowrap;\"\u003e2 Hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eImportant Notes:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Requirements:\u003c\/strong\u003e These headers will only fit using HQ 350 Chev original engine mounting spacers or PACEMAKER spacers (Part Number: PEMP 350).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacer Orientation:\u003c\/strong\u003e Spacers must be fitted on the correct side (RH spacer is 1¾” high, LH spacer is 1¼” high).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Fitment:\u003c\/strong\u003e Compatible with both Manual and Automatic transmissions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eImportant Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe image shown may not reflect the actual product\u003c\/li\u003e\n\u003cli\u003eShipping times may vary depending on destination and stock availability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Applications:\u003c\/h3\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-top: 10px;\"\u003e\n\u003ctable style=\"min-width: 1100px; border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f0; border-bottom: 2px solid #333;\"\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eFrom\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eTo\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eBody\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eSeries\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eEngine\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eVariant\u003c\/th\u003e\n\u003cth style=\"padding: 10px 15px; text-align: left; white-space: nowrap;\"\u003eDrivetrain\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003eHolden\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003eKingswood \/ Premier \/ Monaro \/ Statesman\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003e1971\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003e1984\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003eSedan \/ Ute \/ Wagon \/ Coupe \/ 1-Tonner\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003eHQ, HJ, HX, HZ, WB\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003eBig Block Chev V8 (396-496)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003eManual \u0026amp; Automatic\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; white-space: nowrap; vertical-align: middle;\"\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.warranty-table-wrapper { overflow-x: auto; margin: 20px 0; }\n.warranty-table { width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; min-width: 400px; }\n.warranty-table th { background-color: #111; color: #fff; text-align: left; padding: 12px; }\n.warranty-table td { padding: 12px; border-bottom: 1px solid #ddd; }\n.warranty-table tr:nth-child(even) { background-color: #f9f9f9; }\n.warranty-title { font-size: 18px; font-weight: bold; margin-bottom: 10px; font-family: Arial, sans-serif; margin-top: 25px; }\n\u003c\/style\u003e\n\u003cdiv class=\"warranty-title\"\u003eWarranty Information\u003c\/div\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-top: 10px;\"\u003e\n\u003ctable class=\"warranty-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 12px; text-align: left; background-color: #111; color: #fff;\"\u003eProduct\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; background-color: #111; color: #fff;\"\u003eWarranty Period\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003ePacemaker Headers\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003eTwo (2) years.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003ePacemaker King Brown 4x4 Exhaust systems\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003eFive (5) years.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003ePacemaker Sports exhaust systems\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003eFive (5) years.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003eFabrication products and accessories\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #ddd;\"\u003eOne (1) year.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003ePayment \u0026amp; Security:\u003c\/strong\u003e\u003cbr\u003eYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.\u003c\/p\u003e","brand":"Pacemaker Headers","offers":[{"title":"Default Title","offer_id":40441390301266,"sku":"PH5340 L\/R","price":1363.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/7718\/9458\/files\/PH5340L-WebsitePhoto_44fbca12-06d6-4a5d-be9a-6ba9e0537527.png?v=1737593535","url":"https:\/\/fastautoparts.com.au\/products\/pacemaker-ph5340-big-block-chev-conversion-headers-holden-hq-hj-hx-hz-wb","provider":"Fast Auto Parts Australia","version":"1.0","type":"link"}