{"product_id":"kb-m8-114-117-to-120-big-bore-conv-piston-set-010","title":"Kb, M8 114\/117 To 120\" Big Bore Conv. Piston Set. +.010\"","description":"\u003cp\u003eForged Super Duty series for the Milwaukee Eight engine. With hard anodized crown and top ring groove to reflect heat and prevent ring to groove ''micro-welding''. The Line2Line abradable self-lubricating powder coating technique allows zero tolerance installation; final tolerance will be 0.003\". The piston creates its own perfect tolerance during run-in; the coating automatically gives the tightest possible \u0026amp; perfect piston to cylinder fit for no piston rock and best possible ring seal.  Note: Fits 114\/117\" M8 engines; cylinder must be bored to 4.125\" big bore size. Case boring is not required; OEM weight so rebalancing is not required and works with stock 4.500\" stroke.  10.9:1 CR. (with 88.6cc head volume).  Piston weight: OEM.  Piston pin weight 115gr.; offset: 0.025\".  Piston: +1.9cc\/Flat top.  Compression height: 1.083\".  Ring pack: 1.2mm 1.2mm 3.0mm.  Bore 4 1\/8\" \/ Stroke stock 4.500\".\u003c\/p\u003e","brand":"Kb Performance Piston","offers":[{"title":"Default Title","offer_id":50020984815944,"sku":"574104","price":514.9,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/holydeath.com\/products\/kb-m8-114-117-to-120-big-bore-conv-piston-set-010","provider":"Holy Death Motorcycle Co.","version":"1.0","type":"link"}