HELP id motor LT1-370hp??

[jc]

im having trouble reading the #s on the block in a truck i just baught
i can make out 397 possible a 3 next two more unreadable #s and the last # is a 4 .
the 3 middle numbers appear to be double stamed or someting so i cant mak em out
is there any other markings to tell if this is what i have like a plug in a certin spot or any dead give aways
the #s i got below are from mortec

3973414....70......350..........LT1-370hp, Camel hump, 64cc chamber

the intake has an egr valve and a 2barrel carb
i didnt see any #s on the front pad

the guy i baught the truck from says it runs but has been sitting.
im gonna spend some time getting it running before pulling anything apart any further.
if it is a 3973414 ,you guys have any idea on the value