id be looking to do some motorwork too for my 636, its approaching 20,000 miles and i figure since the engines getting torn apart why not go big as opposed to just a supersport build. KWS motosports offers a big bore package it includes - JE custom pistons $699, Block Machined by Millennium Technologies $650, Carrillo H-Beams Rods $1175, KWS CNC Pro Head $1350, Adjustable cam sprockets $165, Custom head gasket $165, Labor and Dyno Tune $1500. Definitely on the steep side and kind of far away from me. Does anyone know of any good engine builders in the New England area? Theres SRE racing engines close by, he builds the motors for jeff wood who races ama and dominates the loudon road race series which is my home track, but im not sure if he does big bore kits. Kawasaki ZX-6R KWS MOTORSPORTS N. CHARLESTON, SC (843) 552-7177
I have talked with KWS and carry andrews about this more than once to get my facts straight: The common thing is the rods, both agree they need to be replaced IF you are going to ride the bike without fear of it popping, epsecially if you do headwork as well or higher compression.
I feel kws is a bit high on parts cost, so i went about things myself and found everything they sell for a cheaper price...Big thing would be i would need to find someone to overbore the stock kawasak base and head gasket that 2mm.
neither used cometic due to failure with them.
MIllenium tech does this service and i have a set of sleeves/jugs i am sending their, as i am not looking to jump both feet in right now, kinda 1 part at a time.
the rods i can get for $1G or less as well, but other thinggs have my eye also so spreading the love is not always easy.
I also inquired about the crank, they did not say it was in need of additional work for this to stay reliable.