hey guys i was told to come and see you about this.
i bought a motor i was told it was out of 1969 z28 camaro.
the numbers on the motor are as follows:
40 GM
3970010
L188-or
Lt88
010
160
N
3

these are the only numbers i found.
i am going to thank you guys in advanced
you come highly recomended.
hope to from you soon.
till then
chip

 

from what i tootled with its a 69..

try this http://www.nastyz28.com/sbchevy/sblock.php#ecode

 

The casting number is very common, it could be a 2 or 4 bolt main 350, a 2 bolt 327, or a 4 bolt main 302 if it is from the camaro. Really the only surefire way is to tear the motor apart, see if it is a 2 or 4 bolt main, and then measure the bore and stroke.

 

it is a 4 bolt main 350 as far as i know. i willmeasure bore and stroke tomm.

 

i wander were it was made at? b/c its has 40 GM before the casting number.
if it had just M and not GM it would be mexico. that site also said if it had a clock which it does-

On some "Saginaw" blocks, intakes and exhausts a "clock" was cast into the block. The clock is a circle of 10 dots, one dot for each hour of a shift (usually 10 hour shifts). An arrow points to the beginning of the shift an another dot outside the circle indicates what time of day the cast part was made. Anyways, that's what that circle thing is (if you happen to see it on something).
so i am kinda confused
thanks for the help
hit me back if you come across anything else.
thanks dude
chip