are the key characters to decode the engine, in particular the last three. The V means it was built in Flint Michigan, 0522 is May 22nd. The yanks do their dates backwards, not like us normal people.
Are you sure it's OMD? If it's DMD then it could be a 267 or a 350. Get the casting numbers and the casting date.
12L586156 is the VIN derivative of the car. L is the Van Nuys plant, so possibly this was a Camaro engine
Thanks for the info.
I've asked the guy if the number is correct and he says it is. I've double checked what he gave me against the vicroads website (local government registration authority) and it is the same as registered with the govt.