Carr Precision seems to have what I need. When I corresponed with the original owner of this motor, he informed me that I might have to do some boring out because this engine has been suped up. I believe he mentioned .625 was the diameter to use. Any thoughts on how I could do this without a machine shop? Thanks to all who have replied. In less than 24 hours I know what I need to do, and have a source or two for parts. Thanks! Doug