What is this fuel pump ?

[Emo1956]

Merry Xmas and Happy holidays  to everyone. I am going to sell this pump from my fathers collection and I am confused about what I am reading. There seems to be some conflicting pumps and numbers ! I read a thread about these pumps but it didn't say exactly what this pump is.This is a NOS new AC 40731 . Is it for the ZL-1 ? Did it replace the original ? Is it for the copo,or Corvette ?
As always you guys are the experts. Thank you in advance .

[Emo1956]

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[Emo1956]

more pics

[Sauron327]

I just googled the part number.  https://www.rickscamaros.com/camaro-fuel-pump-427ci-zl-1-acdelco-40731-1969.html

[Tinkerr]

Wow, Classic Industries lists the repo for $441. Was thinking about up grading to that pump since I hot rodded my motor. At that price I think I'll get by with the 396/375 pump.