1970 360

Have a 1/71 casting date 360 that is out of a 71 camper. as far as ive read 71 is the 1st year 360 was produced. 71-73 trucks and campers. 74 they started putting them in cars when they stoped making 340s. Dont quote me i just read that some place. Have never seen one but would assume an early 71 could have a 70 built block. Just like early 68 darts had 67 build date 340 blocks. I have a 9/67 340 and i had a guy argue till he was blue in the face telling me i was nuts. It is what it is. Its a 340 out of an early 68 GTS.