{"product_id":"piston-assembly-less-piston-rings","title":"Piston - Assembly - Less Piston Rings for Discovery 2 (1998 – 2004) Less Piston Rings - 4.6L V8 Petrol - Standard - High Compression – ERR5554NR","description":"\u003cp\u003eThis is a standard-bore, high-compression piston assembly for the 4.6L Rover V8 engine, supplied without piston rings. The piston forms the core of the combustion cycle, transferring force from expanding gases to the connecting rod, and correct specification is critical - fitting a non-matching compression ratio piston will directly affect engine output, fuel economy, and long-term reliability. Worn or damaged pistons in the 4.6L V8 typically present as excessive oil consumption, blow-by, or loss of compression across one or more cylinders.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-compression specification, matched to the standard 4.6L Rover V8 combustion chamber geometry\u003c\/li\u003e\n\u003cli\u003eSupplied less piston rings - rings must be sourced separately and sized to the bore condition\u003c\/li\u003e\n\u003cli\u003eStandard bore diameter - suitable for use where the cylinder bore has not been machined oversize\u003c\/li\u003e\n\u003cli\u003eSold as a single piston assembly; a full V8 rebuild requires eight units - inspect bores, gudgeon pins, and bearings before fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\n\u003cp\u003eFits Discovery 2 (1998–2004) and Range Rover P38 (1995–2002), both with the 4.6L V8 petrol engine.\u003c\/p\u003e\n\u003cp\u003eNot sure about fitment? Feel free to get in touch at \u003ca href=\"mailto:info@thomasperformance.co.uk\"\u003einfo@thomasperformance.co.uk\u003c\/a\u003e\u003c\/p\u003e","brand":"Allmakes 4x4","offers":[{"title":"Default Title","offer_id":55820552995160,"sku":"ERR5554NR","price":20.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/0070\/6392\/files\/ERR5554NR-600x600.jpg?v=1758865117","url":"https:\/\/thomasperformance.co.uk\/products\/piston-assembly-less-piston-rings","provider":"Thomas Performance Ltd","version":"1.0","type":"link"}