Ok ,it seems like every time I am talking Mangustas the subject comes up concerning the 289 Hipo and if they were really installed in production cars and if so, how many and where did they come from (Shelby?). Anyone who believe they still have the original 289 Hipo, I am looking for the actual assembly code date located at the top of the engine near the drivers side head. Also, if anyone has the valve cover off, the actual head casting date would be very helpful. To date have not found one valid number. Last number from someone claiming original Mangusta 289 Hipo had an assemble code of 2b24 (February 24, 1972)- probably not an original Hipo. Help would be appreciated.
Thanks
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