{"product_id":"mcs944665","title":"KB Performance Piston 1340cc Evo B.T. Pop-up Piston Kit. STD – 1984–1999 Evo Big Twin","description":"\u003ch2\u003eKB Performance Piston 1340cc Evo B.T. Pop-up Piston Kit. STD – 1984–1999 Evo Big Twin\u003c\/h2\u003e\n\u003cp\u003ePop-up high compression. 9.5:1 CR. Piston weight 392gr. Piston pin weight 97gr. Head type: Dome. Dome -9cc. Compression height 1.375\". Bore 3.4980\". Stroke 4.250\" (4 1\/4\"). Rod length 7.440\". Cyl. length 5.550\". Comes with T6 heat treated 390 Hypereutectic cast pistons with 16% silicone levels which enables running a very tight clearance for longevity and hardly any piston noise. Note: Top compression ring will need additional clearance. See instructions.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e84-99 Evo Big Twin (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KB Performance Piston\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; PISTONS AND RINGS KITS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e SET\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 944665\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KB-Performance Piston","offers":[{"title":"Default Title","offer_id":57378692628867,"sku":"MCS944665","price":246.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/944665k_39c6b8ac-6b6d-40b0-b417-664f91ac57bc.jpg?v=1775575558","url":"https:\/\/hogparts.com\/products\/mcs944665","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}