I have a freshly rebuilt water pump for a '92 Corvette. I bought this for a street rod project with an LT1. At the time I was not going to have heat so I bought the '92 pump with one less heater hose barb. I have since decided to add heat/defrost and bought another pump. This pump will work for a '92 Corvette or ANY LT1 car that has had the heater removed - race car, weekend toy, etc or drill and tap for the second fitting on a car with heat (I do not own a tap and die set so I just bought another pump). i have ZERO miles on this pump. It has been run about a dozen times for 2-3 minutes. Thanks!