{"product_id":"95-inch-twin-cam-piston-set-005","title":"95 inch Twin Cam Piston Set .005","description":"\u003cp\u003eKeith Black piston set is .005 oversize and is for a 3.875 inch bore. Piston set has a compression ratio of 9.3:1 and includes rings.\n\u003cbr\u003eThe Keith Black 390 hypereutectic alloy is cast in a permanent steel mold which makes it possible to build a light weight piston that makes more power and uses less fuel and lasts longer. Pistons are .005 oversize  for a 3.875 inch bore and has a 9.3:1 compression ratio. The low heat transfer of the alloy keeps the skirts cool so piston expansion is minimal. The combination of a low heat transfer piston alloy and high compression ring placement increases power and economy. The high ring placement alone reduces detonation and increases the top ring temperature.                                                                    **Note: Run engine at moderate speeds for at least 500 miles  avoiding excessive running in lower gears  in order to properly break-in new pistons and rings. \n\u003cbr\u003e Instructions: http:\/\/www.vtwinmfg.com\/Instructions\/MS\/KB Sym-Asym Piston Installation Guide.pdf\u003c\/p\u003e","brand":"Keith Black","offers":[{"title":"Default Title","offer_id":67617150599353,"sku":"11-2275","price":358.99,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.thespeedshopusa.com\/fr\/products\/95-inch-twin-cam-piston-set-005","provider":"THE SPEED SHOP USA","version":"1.0","type":"link"}