{"product_id":"mcs944647","title":"KB Performance Piston 1340cc Shovel Piston Kit. STD – 1979–1984 1340cc Shovel","description":"\u003ch2\u003eKB Performance Piston 1340cc Shovel Piston Kit. STD – 1979–1984 1340cc Shovel\u003c\/h2\u003e\n\u003cp\u003e8.0:1 CR. Piston weight 357gr. Piston pin weight 97gr. Head type: Dome 0.426\" \/ Dome -30cc. Compression height 1.285\". \/ Bore 3.4980\". Stroke 4.250\" (4-1\/4\"). Rod length 7.440\" \/ Cyl. length 5.330\". 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. Note: Around 30% of stock 1340cc Shovel cylinders may present a problem in combination with the location of some of the oil return holes since KB pistons have a wider piston ring pack for better piston stability in the cylinder. In these cases the oil return hole must be re-located (lowered) to avoid excessive oil consumption.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e79-84 1340cc Shovel (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 944647\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KB-Performance Piston","offers":[{"title":"Default Title","offer_id":57378689548675,"sku":"MCS944647","price":246.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/944647k_a539541b-aaa2-4c62-8dc7-0440c6e73898.jpg?v=1775575569","url":"https:\/\/hogparts.com\/products\/mcs944647","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}