New Wiseco 836cc Big Bore performance piston kit. Wiseco, have long been the most successful brand of motorcycle performance pistons. This 836cc kit, is a straight rebore of the standard barrells on your cb750 1970 to 78 sohc honda. The comp ratio is 10.25:1. The kit comes with cometic big bore head gasket, pistons, rings, gudgeon pins and circlips. See our other listings for a wide range of performance products for your cb750 sohc. The item "Honda CB750 SOHC 836cc Wiseco Big Bore Piston kit" is in sale since Thursday, September 7, 2017. This item is in the category "Vehicle Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Pistons, Rings & Pistons Kits". The seller is "suzukiperformanceltd" and is located in wisbech. This item can be shipped worldwide.