1969 OEM Shelby aluminum finned oil pan

I have an original Shelby (I think 7 qt) finned oil pan that I purchased on EBay over 10 years ago before they started making reproductions. Does anyone have an information on this oil pan. Were they only made for 302 or did they also make them for 351 Clevelands? If the were made for both how do you tell the difference between the 302 and 351-C? Also what are they currently valued at? Photos to follow shortly. Thank you

Eric.
 
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