Thanks for your input. The car runs, idles, and performs perfectly. With this in mind, I don't feel there is any damage. If an engine gets damaged it can be successfully repaired. Based on what I know, I'd have to say it is and was an "improper assembly" issue. I do have a printout from the dealer on the service history. There is no operation explanation just " op codes " #110011 and #161011 and the descriptions are cyl hd subassy (w/o all vlv) and water pump assy &/or gskt. Strange a water pump needs replacement at that mileage. Also, there was a 5K service done, a certified pre-owned PDI, an alignment, and multiple "unknowns". Can anyone translate dealer service option codes?