Right you are. Also, along with the trucks, the big cars (Impala and Caprice) could have 400 on the fenders and have either a 400 small block or the 402 fat motor. the 402 is the only motor I know that was marketed in TWO different sizes, and neither of them were correct. I worked at the local chevy dealer a few years with an old guy that had worked for GM at the doraville plant in georgia for a while. He always said that the way the 402 came to be was that somebody accidentally set the boring bar up out of spec for the 396. he said several thousand blocks were bored incorrectly and thus the 402 was born. Could be just one of those rumors....but I've read and heard it other places, too. It sorta makes sense, because the 396 and 402 are so close.....it just wouldn't have made sense for Chevy to suddenly come up with the 402 when the 396 was already a main staple for them. the 402 was never marketed as a 402 as far as I know. so that might lend even more truth to the rumor. interesting to say the least.
