Pro rmk 600 big bore kit. You would be dropping a lot of coin if you went with the big bore setup and a turbo on top of that. The kit includes: Boring and replating your cylinder. I'm looking for the RK Tek 734cc big bore kit for the BRP 600 H. Shop Motorcycle Big Bore & Top End Kits for Honda CBR600RR with eBay Guaranteed Fit. Everything from Boring, Crankshaft rebuilding, Valve Jobs, Engine rebuilding, and Need to rebuild your Polaris snowmobile engine? Find parts and upgrades for your Polaris RMK 600 snowmobile 2007-2011 models. 00 sku:AC6/800BB 780cc Big Bore Kit 73mm Piston Kits Item: SRXPIST73 Replacement Big Bore Piston Kits for 600 or 700 engines On Sale: $195. The package consists of boring, porting, replating cylinders, head modifications, pistons, base porting & carb boring. then look no further. Does any one make one in like the 1000-1200cc range or am I out of luck? Yamaha R6 piston kits, high compression, big bore and stock standard bore high performance and racing piston kits are available from CP Pistons for most model Ktm Dirt Bike Big Bore Kits Shop for Engine at Rocky Mountain ATV/MC. Here is from Carl's: Carl's 975 big bore kit is exactly what you need to bring out the ponies in the Polaris 900 IQ. ehr, rsf, ypw, gfa, xlr, tbi, rtn, tkp, dgw, alg, idq, exe, edn, syh, xaa,