How to tell what a 360 originally came from ?

He can check the block for a vin #. Otherwise he will likely only be able to find what year the motor is which will be cast on the block.
Thank you adamR, I will send this info to him at least he will know what year model it is :-k that should be all he needs to cary on :cheers:

yep, the first four of the VIN stamped on the passenger side pan rail pad will tell all. he can run the vin # through a decoder
And thank you very much 73AbodEE, I quess I or he needs to find a Vun # decoder :D Thank you :cheers: