Yes I can help with that engine number.It appears that engine is a Corvette 2 model number 71VB from 1971.The base however is a store brand as can be seen by the Waltons sticker.So I'd say that someone at some point has had problems with the original base and swapped the engine over.Similar base but not quite the same.
Also can you share your secret on how it ended up in your boot as I just can't find anything.It would be great if they just put themselves in there.
Hang on I'll go and check and see if one is in there now.
