These are left and right hand rotation Chris Craft engines. The price includes both. They were rebuilt about 10 years ago but have been in storage since then. They need some work but i believe they could be easily started. They are complete except for missing water pumps and a missing pulley in one. You can call me at 908-272-1173 for more info or preferably email me at james.sowa@hotmail.com. Thanks, James