{"product_id":"mcs944632","title":"KB Performance Piston 1200cc B.T. Piston Kit. +.005\" – 1941–1978 74\"\/1200cc Knuckle; Pan…","description":"\u003ch2\u003eKB Performance Piston 1200cc B.T. Piston Kit. +.005\" – 1941–1978 74\"\/1200cc Knuckle; Pan…\u003c\/h2\u003e\n\u003cp\u003eCompatible with stock cylinders and heads; gives stock compression ratio. 8.5:1 CR. Piston weight 370gr. Piston pin weight 97gr. Head type: Dome 0.656\" \/ Dome -57cc. Compression height 1.450\". Bore 3.4375\" \/ Stroke 3.969\" (3-31\/32\"). 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.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e41-78 74\"\/1200cc Knuckle; Pan; 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 944632\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KB-Performance Piston","offers":[{"title":"Default Title","offer_id":57378686206339,"sku":"MCS944632","price":240.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/944632k_426d57c1-65a9-4cd7-8284-2c360da713e4.jpg?v=1775575577","url":"https:\/\/hogparts.com\/products\/mcs944632","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}