please decode gm 14010207

Thanks Denny, sometime you get what you asked for "truth hurts"
Its a friends motor he bought the truck when he was 14 and has been building around the motor every sence. he was told it was a 400 I thought maby a late model because only 2 freeze plugs instead of 3 it dose have the big harmonic
balancer on it. We were hopping to find out year,horsepower&comp.Just to find out it was infact a 350 with only 190-230hp well good news its a 4bolt block maby some good will come out of it.

And again thanks
RATATOOLY

PS I have some motors of my own I would like to decode I will get the numbers later and post back with them