How can I ID a 73 Satellite/ Roadrunner Big block K frame. I have one Satellite that came with a 318 and was an all original car so I know that one is a small block K-frame but my parts car which is also a 73 Satellite Has a 440 in it but I think it was a factory small block car. Is there an easy way to tell a big block K-Frame from a small block K-frame. Pictures would help a lot thanks for the help.