{"product_id":"1098-040-county-piston-grant-ring-set-cp109k-040","title":"1098+040 County Piston \u0026 Grant ring set [CP109K-040]","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eQuality \u003cstrong\u003e1098cc +040\" oversize dished-top piston and ring set\u003c\/strong\u003e for BMC A-Series engines. The 1098cc engine is often rounded up and referred to as an \u003cstrong\u003e1100cc\u003c\/strong\u003e.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese are \u003cstrong\u003ecirclip-type pistons\u003c\/strong\u003e and must not be confused with the pressed-type gudgeon pin arrangement used on some other engines.\u003c\/p\u003e\n\u003cp\u003eThe pistons are a quality \u003cstrong\u003eCounty set, assembled in the UK\u003c\/strong\u003e, and are supplied with \u003cstrong\u003eGrant piston rings\u003c\/strong\u003e. This is a quality piston and ring combination for rebuilding a \u003cstrong\u003e1098cc A-Series engine with a +040\" rebore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eKit Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e4x County +040\" oversize pistons\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e4x Grant +040\" ring sets\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e4x gudgeon pins\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e8x gudgeon pin circlips\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSuitable for \u003cstrong\u003e1098cc +040\" A-Series engines\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 1098cc A-Series – often referred to as 1100cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore:\u003c\/strong\u003e \u003cstrong\u003e+040\" oversize\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston type:\u003c\/strong\u003e Dished top\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGudgeon pin:\u003c\/strong\u003e Circlip type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston brand:\u003c\/strong\u003e County\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounty part number:\u003c\/strong\u003e CP109K 040\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston assembly:\u003c\/strong\u003e Assembled in the UK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing brand:\u003c\/strong\u003e Grant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrant ring set:\u003c\/strong\u003e +040\" oversize\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion chamber volume:\u003c\/strong\u003e Approx. \u003cstrong\u003e6–7cc\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1098cc piston has a different compression height to the 998cc piston\u003c\/strong\u003e, despite the engines sharing the same nominal bore size.\u003c\/p\u003e\n\u003cp\u003eThe 1098cc compression height is approximately \u003cstrong\u003e1.196\"\u003c\/strong\u003e, compared with \u003cstrong\u003e1.342\" for the 998cc piston\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo not confuse 1098cc and 998cc pistons\u003c\/strong\u003e when ordering or rebuilding an A-Series engine. Always confirm the engine specification, existing bore size and required oversize before purchasing.\u003c\/p\u003e\n\u003cp\u003eThe +040\" pistons require the cylinder block to be correctly machined to suit. We recommend having the block and existing bore measurements checked before ordering.\u003c\/p\u003e\n\u003cp\u003eA quality \u003cstrong\u003eCounty +040\" piston and Grant ring combination\u003c\/strong\u003e for a 1098cc A-Series rebuild, supplied complete with gudgeon pins and circlips.\u003c\/p\u003e","brand":"Minisport.com.au","offers":[{"title":"Default Title","offer_id":54404977885494,"sku":"CP109K-040","price":425.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/3322\/9366\/files\/20260220_125626.jpg?v=1771555313","url":"https:\/\/minisport.com.au\/products\/1098-040-county-piston-grant-ring-set-cp109k-040","provider":"Minisport","version":"1.0","type":"link"}