{"product_id":"holden-v8-253-304-308-355-welsh-plug-kit-brass-material","title":"Holden V8 253, 304, 308, 355 Welsh Plug Kit Brass Material","description":"\u003cdiv\u003e\n\u003cp\u003eHolden V8 engines in the 253, 304, 308, and 355 families demand a reliable seal for core holes. The Aeroflow Performance Welsh Plug Kit in Brass Material is purpose-built for these blocks, delivering durable brass plugs paired with steel oil gallery plugs to help prevent leaks and defend against coolant pressure-induced cracks during operation and rebuilds.\u003c\/p\u003e \u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e10 x 5\/8\" (16mm) Outside Diameter\u003c\/li\u003e \u003cli\u003e1 x 1-53\/64\" (46.7mm) Outside Diameter\u003c\/li\u003e \u003cli\u003e3 x 1-5\/8\" (15.8mm) Outside Diameter\u003c\/li\u003e \u003cli\u003e1 x 7\/32\" Steel Plugs\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThese are complete engine block freeze plug kits and include brass Welsh plugs and steel oil gallery plugs. Cylinder head plugs are not included.\u003c\/p\u003e \u003ch3\u003eWhy this kit matters\u003c\/h3\u003e\n\u003cp\u003eWelsh plugs seal core holes to prevent leaks of coolant and other fluids, protecting against cracks caused by the pressure of frozen coolant, while maintaining containment during regular operation. Brass construction provides solid corrosion resistance and a dependable seal, complemented by steel oil gallery plugs for added rigidity where oil passages require protection.\u003c\/p\u003e \u003ch3\u003eDesigned for your Holden V8 rebuild\u003c\/h3\u003e\n\u003cp\u003eEach kit is specifically designed to suit each make and model with all correct sizes included for when you are rebuilding your engine. This kit is tailored for Holden V8s in the 253, 304, 308, and 355 range, ensuring a precise fit for a confident, efficient assembly.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEngine rebuilds or remanufactures of Holden V8 253\/304\/308\/355\u003c\/li\u003e \u003cli\u003ePreventative maintenance to replace aging or corroded core plugs\u003c\/li\u003e \u003cli\u003eRestoring coolant containment and preventing leaks in classic or performance builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":47287630758058,"sku":"AF3000-1004","price":51.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/s-l1600_23f267f9-cd8a-4673-a836-a6555ca863f5.webp?v=1754014224","url":"https:\/\/tgmperformance.com.au\/products\/holden-v8-253-304-308-355-welsh-plug-kit-brass-material","provider":"TGM Performance Parts","version":"1.0","type":"link"}