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This ad is for a 421cc cheetah cub top end kit. This is our basic kit that will come with what’s pictured.
-4mil 68mm bore cheetah cub cylinder
-1 set of 573M06800 pistons
-base gasket
-head o-rings
-wrist pin bearings
-2 stud extenders
-4 water jacket plugs
-2 12 point nuts for the front center cylinder studs.
MacDaddy Racing offers extensive cylinder porting and engine building for the Yamaha banshee. The dyno graph above is from a 384cc 4mil stock cylinder. Contact MacDaddy Racing today if you’re looking for an ultimate grudge sleeper setup.
This posting is for installing boyeseen ports in your stock banshee cylinders to increase intake area and horsepower. Depending on the setup you can expect to see a 2 hp gain. All you have to do is send us your cylinders and we will machine the boyeseen ports into your cylinders and send them back to you ready to run.
This listing is for the nuts necessary for the bottom of the engine cases, cylinders, and head on a Yamaha banshee. These nuts are zinc plated and look very clean when installed. 26 total nuts, 8 for the cases, 8 for the cylinders, and 10 for the head. These are oem replacements.
Yamaha banshee engine building services by Jesse McComas at MacDaddy Racing. We currently hold the 0-425cc PSDA twin cylinder world record. Whether you want a simple rebuild of your stock engine or a fully built drag engine MacDaddy Racing can help. Contact us with exactly what you want done and we can get your engine running great again. Price depends on the condition of your current engine and what all you want done.